Use substitution to solve the problem below algebraically.
x = 41
x + 2y = 71
Answers
Answer:
41 + 2y = 71
2y = 30
y = 15
Step-by-step explanation:
i believe that is right, if not sorry
Related Questions
What is the fewest number of people surveyed if exactly 93.6% of people completed a survey?
Use the whole numbers 0 through 9, at most one time, to fill in the boxes to create an accurate
number line.
Answers
Answer:
Step-by-step explanation:
7
the percentage of people that finished the survey is 93.6%, given.
this percentage as a fraction is p, (being the people) = 93.6/100, so, p = 93.6/100.
you then multiple the fraction 93.6/100 by 10, which is: p = 936/1000. then, reduce the fraction.
p = 117/125.
the fraction can’t be reduced any further, so that’s your answer.
hope this helps!
Math needed in 20-30 mins Pls
Answers
Answer:
the two accounts don't compare and account A earned 180
Step-by-step explanation:
interest =beginning amount or principal amount *rate *time in years /100 so that would be 1500*4*3/ 100 and 1500*6*1.9/100
can someone help me plot these??
(+30 points)
Answers
Answer:
Heres the answer to your question. Hope this helps!
How many pints are in6 1/2quarts?
A: 3 1/4pt
B: 13 pt
C:19 1/2pt
D: 26 pt
Answers
Answer:
B. 13 pt
Step-by-step explanation:
There are 2 pints in 1 quart
2×6 1/2=13
Hope this helps! :)
Add the negatives.
+4 - 3 - 4 + 2 - 1
I just dont get it
Answers
Answer: -2
Step-by-step explanation:
since there are no multiplication you can simply go from left to right doing simple math. You start from a +4 that would be a positive 4, you subtract -3 so you get +1 then you subtract -4 and the result is -3 (negative 3) so now you are currently working with numbers lower than 0, adding +2 will make it -1 and finally you subtract for -1 and that will make it -2. Hope it's what u needed
someone help meh with this
Answers
Answer: Dana
Step-by-step explanation: Andy- 0.5 hours on homework
Dana-0.35 hours on homework
Becky-0.375 hours on homework (or rounded as 0.38)
I converted them all to decimal so that we can find the answer easily.
So Dana spent the least time on homework.
I need some help please
Answers
Cross multiply
720800/7.208x
X=720800/7.208
X= 100,000
B. 720800/x=72.08
720800/72.08x
X=10,000
C. 720800/x=720.8
720800/720.8x
X=7208000/720.8
X=1000
The direct answer for the question is;
A. =100000
B. =10000
C. =1000
A chemist prepares two acid solutions.
Solution 1
3 parts sulfuric acid to 7 parts water
Solution 2
4 parts sulfuric acid to 9 parts water
a. Use a ratio table to determine which solution is more acidic.
Solution 1 Solution 2
Water Sulfuric Acid
Water
Sulfuric Acid
7
9
21
18
42
45
63
63
Question 2
Solution
has the greater concentration.
Question 3
b. Use a graph to determine which solution is more acidic.
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Both graphs begin at $($ Response area, Response area $)$ . The graph for solution Response area is steeper, so it has Response area concentration of acid.
Answers
Answer:
Check Description for answer
Step-by-step explanation
do it urself
Answer:
A) solution 2 is more acidic than solution 1
Step-by-step explanation:
A chemist prepares two acid solutions:
Solution 1: 3 parts sulfuric acid to 7 parts water
Ratio of sulphur to water: 3/7 (3:7)
Solution 2: 4 parts sulfuric acid to 9 parts water
Ratio of sulphur to water: 4/9 (4:9)
___________________________________________________
Part A: (using ratios to determine which solution is more acidic)
First we make same denominator, since the denominators are 9 and 7, we have to find the lcm (lowest common multiple) they both have with is 63. To do that, we must multiply the denominators with either 7 or 9.
Solution 1: Numerator (3) multiplied by 9 and then denominator (7) multiplied by 9. This makes out fraction/ratio 27/63
Solution 2: Numerator (4) multiplied by 7 and then denominator (9) multiplied by 7. This makes out fraction/ratio 28/63
Since 28/63 (or just 28) is a larger quantity than 27/63 (or just 27) this means solution 2 is more acidic than solution 1.
Mathematical Line (Not sure what you would call this lol): 28 > 27
Part B: (Let 'y' amount of sulfuric acid mix with 'x' amount of water)
Equation of solution 1: y = 3/7x
Equation of solution 2: y = 4/9x
Please find attachment for graph.
Part C: Don't have a graph, sorry! (part a. method is more preferred to find more acidic because it gives the actual acidic amount.)
translate the following into algebraic expressions: Jack wil be x years old in 8 years. How old is he now?
Answers
Step-by-step explanation:
y=x-8
Answer:y=x-8
Step-by-step explanation:
plz helppp!!!!! I NEED IT NOWW !!!!!!!!!!!!!!!!
Answers
Answer:
A
Step-by-step explanation:
100 points!!!!!!!!!!!!!!!!!!!
The box plot shows the number of jumping jacks completed in a workout class by the class members. A box plot uses a number line from 14 to 54, with tick marks every one unit. The box extends from 26 to 49 on the number line. A line in the box is at 40. The lines outside the box end at 15 and 52. The graph is Jumping Jacks Completed, and the line is labeled Number of Jumping Jacks. Which of the following lists the range and IQR for this data? The range is 23, and the IQR is 37. The range is 40, and the IQR is 37. The range is 40, and the IQR is 23. The range is 37, and the IQR is 23.
Answers
- Range: The range is the difference between the maximum and minimum values in a data set.
- IQR: The IQR is the range of the middle 50% of the data values. It is calculated by finding the difference between the third quartile (Q3) and the first quartile (Q1).
In the given box plot:
- The lines outside the box represent the minimum and maximum values.
- The box represents the middle 50% of the data, with the line inside the box representing the median (or second quartile, Q2).
- The distance between the lower whisker and the bottom edge of the box represents the first quartile (Q1), and the distance between the upper whisker and the top edge of the box represents the third quartile (Q3).
Based on the information provided in the box plot, we can determine the range and IQR as follows:
- The minimum value is represented by the lower whisker, which ends at 15.
- The maximum value is represented by the upper whisker, which ends at 52.
- Q1 is located at the bottom edge of the box, which is 26.
- Q3 is located at the top edge of the box, which is 49.
Now we can calculate the range and IQR:
- Range: maximum value - minimum value = 52 - 15 = 37
- IQR: Q3 - Q1 = 49 - 26 = 23
Therefore, the correct statement is:
The range is 37, and the IQR is 23.
Answer:
The range is 37, and the IQR is 23.
Step-by-step explanation:
A box plot (also known as a "box and whisker plot"), is a graph displaying the distribution of a set of data based on a five-number summary.
Five-number summaryMinimum value is at the end of the left whisker.Lower quartile (Q₁) is the left side of the box.Median (Q₂) is the vertical line inside the box.Upper quartile (Q₃) is the right side of the boxMaximum value is at the end of the right whisker.From the given information, the five-number summary of the Jumping Jacks box plot is:
Minimum = 15Lower quartile (Q₁) = 26Median (Q₂) = 40Upper quartile (Q₃) = 49Maximum = 52RangeThe range is the difference between the maximum and minimum values. Therefore, the range for the data is:
\(\sf Range = 52 - 15 = \boxed{\sf 37}\)
Interquartile range (IQR)The IQR is the difference between the upper quartile and the lower quartile. Therefore, the IQR for the data is:
\(\sf IQR = Q_3 - Q_1 = 49 - 26 = \boxed{\sf 23}\)
SummaryThe range is 37, and the IQR is 23.
The expression 2x + 4x represents the cost of buying the same number of cases of spring water, sold for $2 per case, and sparkling water, sold for $4 per case. What expression can be used to express the total cost?
Answers
Answer: 2x + 4x = (2 + 4)x = 6x
Step-by-step explanation:
The expression 2x + 4x represents the cost of buying the same number of cases of spring water and sparkling water. To express the total cost, we need to add the cost of buying the two types of water.
Since the expression 2x represents the cost of buying x cases of spring water, and 4x represents the cost of buying x cases of sparkling water, the total cost can be expressed as:
2x + 4x = (2 + 4)x = 6x
Therefore, the total cost of buying x cases of spring water and sparkling water can be expressed as 6x.
Alternatively, you can think of it as buying x cases of spring water at a cost of 2x dollars and x cases of sparkling water at a cost of 4x dollars. So the total cost is (2x+4x) dollars which is 6x dollars.
- C
the ratio of males to females at a camp is 5 to 4. If there are 40 males at the camp, how many females are there?
Answers
Answer:
5 males : 4 females
40 males : X females
5/40 =4/X
(cross multiplication)
5x = 4*40
5x = 160
(divide both sides by 5)
X = 32
therefore, there are 32 females at the camp
PLease help me solve this please
Answers
Answer:
I only did the first page because u need to read a text book to answer the next page.
try reposting it
what is the factored form of the expression.
4n^2 + 24n + 36
Answers
Answer:
(2n+6)^2
Step-by-step explanation:
To solve this, you can use the given formula: x^2 + 2xy + y^2
In this case, 4n^2 is x^2, 24n is 2xy, and 36 is y^2. The next step is:
(2n)^2 + 2(2n)(6) + (6)^2
Since this equation fits into this formula ( x^2 + 2xy + y^2), we can do:
(2n+6)(2n+6) =
(2n+6)^2
Hence, the answer is (2n+6)^2
When the temperature on Earth drops abruptly, the land cools down faster than the sea.
Which property of water allows water to be resistant to sudden temperature changes?
Choose 1 answer:
(Choice A) Adhesion
(Choice B) High specific heat capacity
(Choice C) Surface tension
(Choice D) Density
Answers
Answer:
High specific heat capacity
Step-by-step explanation:
Specific high heat capacity causes rapid or sudden temperature changes
Answer:
High specific heat capacity
Step-by-step explanation: :/
A cylinder with a diameter of 8 centimeters and height of 18 centimeters. Recall the formula V = pi r squared h. 288 pi Centimeters cubed 1,152 pi Centimeters cubed 1,296 pi Centimeters cubed 2,592 pi Centimeters cubed
Answers
Answer:\(288\pi\ cm^3\)
Step-by-step explanation:
Given
Diameter of cylinder is \(d=8\ cm\)
So, radius \(r=\frac{d}{2}=4\ cm\)
height of cylinder \(h=18\ cm\)
Volume of cylinder is given by
\(V=\pi r^2h\)
\(V=\pi (4)^2\times 18\)
\(V=\pi 16\times 18\)
\(V=288\pi\ cm^3\)
So, volume of cylinder is \(288\pi\ cm^3\)
Answer:
288π cm cubed
Step-by-step explanation:
Three circles are placed in a rectangle with length 24m, as shown below.
Find the area of the shaded region. Use the value 3.14 for pi, and do not round your answer. Be sure to include the correct unit in your answer.
Answers
Answer:6.28
Step-by-step explanation:
I think
giving brainlist to someone who answers all <3
Answers
Answer:
the answer is 107.5
Step-by-step explanation:
..................
.
Answer:
107.5 ft
3.75 miles
2x + 19
Step-by-step explanation:
Elevator:
Start: 85.5 ft
Travel up: 2.75 ft/s for 8 s.
Distance of travel:
distance = speed * time = 2.75 ft/s * 8 s = 22 ft
Final elevation: 85.5 ft + 22 ft = 107.5 ft
Answer: 107.5 ft
Train:
Speed: 22.5 mph
Travel time: 2.5 hours
travel distance = speed * time = 22.5 miles/hour * 2.5 hours = 56.25 miles
Original distance to destination: 60 miles
Distance to destination after traveling 56.25 miles: 60 miles - 56.25 miles = 3.75 miles
Answer: 3.75 miles
Manufacturing plants:
The difference is the difference in the expressions.
5x + 14 - (3x - 5) = 5x + 14 - 3x + 5 = 2x + 19
Answer: 2x + 19
Julisha poured 1.5 liters of water into an empty flask. She boiled the water for 20 minutes then measured the amount of water that remained. She found that 70% of the water remained in the flask. Measured in liters, how much water evaporated?
Answers
The game starts with a pile of 20 tickets. You and the person you are playing against can choose who goes first and second. On each player's turn, they must take 1, 2, or 3, tickets from the pile. The person that takes the last ticket (s) wins. The game starts with a pile of 20 tickets. You and the person you are playing against can choose who goes first and second. On each player's turn, they must take 1, 2, or 3, tickets from the pile. The person that takes the last ticket (s) wins. What is the strategy the 1st player can use to win all the time?
Answers
The 1st player would have to say 15 and 16. NOT 17.
No matter how it is.
Ex:
14,15,16
15,16
The spinner shown has eight equal-sized sections. Eli spins the spinner once.
Match each event with the best description of its probability.
landing on a number ----------------------------------- greater than 6 certain
landing on the number 0 ------------------------------- as likely as not
landing on an odd number ---------------------------- unlikely
landing on a number greater than 2 -------------- impossible
landing on an integer ----------------------------------- likely
Answers
Answer:
landing on a number impossible greater than 6 certain.
landing on the number 0 Certain as likely as not.
landing on an odd number likely unlikely.
landing on a number greater than 2 likely impossible.
landing on an integer certain likely
Step-by-step explanation:
landing on a number impossible greater than 6 certain.
landing on the number 0 Certain as likely as not.
landing on an odd number likely unlikely.
landing on a number greater than 2 likely impossible.
landing on an integer certain likely
SOMEONE HELP ASAPPPP PLEASEEE,PLEASE EXPLAIN HOW U GOT YOUR ANSWER, I NEED AN EXPLANATION IN ORDER TO COMPLETE THIS! NO LINKS OR YOU WILL BE REPORTED, I WILL GIVE BRAINLIEST!!!!!
Find the equation of the exponential function represented by the table below:
Answers
Answer:
x=2
Step-by-step explanation:
In the table the ratio of x to y in the first one is 0:2 and ongoing.
Answer:
\(f\left(x\right)=\ 2\left(2\right)^{x}\)
Step-by-step explanation:
Step 1: Make a equation, f(x)= ab^x.
A is the y value, whenever the x value is zero. So, a is 2.
Lets put that in our equation:
f(x)= 2b^x.
B is the common ratio on the y values. When you follow the pattern, 2, 4, 8, 16, you realize that the common ratio is 2. 2*2 is 4, 4*2, is 8, 8*2 is 16, and so on. So the common ratio is 2.
Lets go ahead and add that to our equation:
f(x)= 2(2)^x.
There is no more steps in this process, so that is actually your final answer:
\(f\left(x\right)=\ 2\left(2\right)^{x}\)
Hope this helps :)
-jp524
20 PTS+BRAINLIEST 8th Grade Simple quadratic equation- answers for points will be reported :)
equation: -7x+6= x squared-7x
Answers
Answer:
x = √6 or - √6
Step-by-step explanation:
equation: -7x + 6 = x² - 7x
switch sides:
x² - 7x = -7x + 6
Add 7x to both sides,
x² - 7x + 7x = -7x + 7x + 6
x² = 6
For x² = f(a) the solution are x = √f(a), -√f(a)
x = √6 , x = - √6
Answer:
-7x + 6 = x² - 7x
-7x + 7x +6 - x² = 0
0 + 6 - x² = 0
-x² + 6 = 0
-x² = (-6)
x² = 6
x = ±√6
x =√6 or x = -√6
PLEASE HELP ASAP!! WILL MARK BRAINLIEST
Answers
Part A: To draw triangles ABC and DEC separately, follow these steps:
Draw a line segment DE with a length of 1.2 feet. This will be the base of both triangles.At point D, draw a perpendicular line segment DC with a length of 2 feet. This will be the height of triangle DEC.At point E, draw a line segment EB with a length of 0.3 feet. This will be the height of triangle ABC.Connect points C and B with line segment BC. This will be the hypotenuse of both triangles.What is the others about?The lengths of sides BC, DE, and EC are as follows:
BC: It is the hypotenuse of triangle ABC and has a length that needs to be calculated using the Pythagorean theorem.DE: It is the base of both triangles and has a length of 1.2 feet.EC: It is the height of triangle DEC and has a length of 2 feet.Part B: To find side AB of triangle ABC, we can use the concept of similarity and ratios. Since triangles ABC and DEC are similar, their corresponding sides are proportional. We can set up the following proportion:
AB/DE = BC/EC
Plugging in the given values, we get:
AB/1.2 = BC/2
To solve for AB, we can cross-multiply and then divide:
AB = (BC/2) x 1.2
Now we need to find the value of BC. We can use the Pythagorean theorem, as BC is the hypotenuse of triangle ABC. The Pythagorean theorem states that the square of the hypotenuse is equal to the sum of the squares of the other two sides.
BC² = AB² + BE²
Plugging in the given value for BE, we get:
BC^2 = AB² + 0.3²
Now we can substitute the value of AB from the previous equation into this equation:
BC² = ((BC/2) * 1.2)² + 0.3²
Simplifying, we get:
BC² = 0.36 x BC^2/4 + 0.09
Multiplying both sides by 4 to eliminate the fraction, we get:
4 x BC² = 0.36 x BC² + 0.36 + 0.09
Combining like terms, we get:
4 x BC² = 0.36 BC² + 0.45
Subtracting 0.36 x BC² and 0.45 from both sides, we get:
3.64 x BC² = 0.45
Dividing both sides by 3.64 to isolate BC², we get:
BC² = 0.45 / 3.64
Taking the square root of both sides to solve for BC, we get:
BC ≈ √(0.45 / 3.64)
BC ≈ 0.357 feet
Now we can substitute the value of BC back into the equation for AB:
AB = (BC/2) x 1.2
AB ≈ (0.357/2) x 1.2
AB ≈ 0.214 feet
So, the approximate length of side AB of triangle ABC is 0.214 feet.
Read more about triangle here:
https://brainly.com/question/17335144
#SPJ1
See full text below
Triangles ABC and DEC are similar. Side DE is 1.2 feet, side EC is 2 feet, and side BE is 0.3 foot.
Part A: Describe how to draw triangles ABC and DEC separately. Be sure to give the lengths of sides BC, DE, and EC in the description. (6 points)
Part B: Find side AB. Show each step of your work. (6 points)
What is the product of −17 • −5 • −12?
1,020
660
−660
−1,020
(Worth 20 points)
Answers
Answer:
-1020
Step-by-step explanation:
Because . is also called in mathematics x so -17 x -5 x -12 it will give you -1020
Shape A is enlarged to give shape B
a) what is the scale factor of the enlargement?
b) mark with a cross the centre of enlargement
Please help me, I need the answer by Friday 17th June, thanks!
Answers
You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the box?
What is the decimal expansion for 12
2
3?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me
Answers
Answer:
D is the right choice and no you cannot fit the pizza inside the box.
Step-by-step explanation:
D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.
Answer:
I believe the answer is D.
Step-by-step explanation:
There are 6/8 of a cake leftover after a birthday party. How many 1/4 pieces can be made from the leftover cake?
PLEASE HELP!!!!!!
I WILL GIVE BRAINLIEST!!!!!
Answers
Answer: 3
Step-by-step explanation:
6/8 is the same as 3/4;
there are 3 lots of 1/4 in 3/4
2/8 + 2/8 + 2/8 = 6/8
So, 1/4 + 1/4 + 1/4 = 3/4 = 6/8
So answer is 3/4
I need help, please quickly
Answers
Answer: The ratio is 18:3
Step-by-step explanation:
Answer: 6 to 1
Step-by-step explanation:
A ratio refers to a fraction. In this case the question asks how many players to coaches there are.
The word "to" means that is where the fraction bar goes.
Players/Coaches
There are 18 players and 3 coaches.
18/3
18 can be divided by 3, 6 times so the fraction can be simplified to
6/1 meaning there are 6 players for every coach.