Mathematics High School

Isolate a variable in each system. You may need to use the distributive property to simplify the equation. Show your work.

3x - 4y = -7
4x + 3y = 24

Answers

Answer 1

Answer:

1.  x=-7/3 + 4y/3

2. x= 6- 3y/4

Step-by-step explanation:

to isolate the variable you simply solve for it by moving all the terms which don't contain x to the right by multiplying, subtracting, adding, and dividing

Related Questions

Vera went to the local salon to get a haircut. The cost was $24. Vera tipped the hair stylist 18%. What was the total cost of the haircut including the tip? Round to the nearest cent.

Answers

Answer:

28.32

Step-by-step explanation:

The total cost of the haircut including the tip will be $28.32.

How to calculate unit price of something?

Unit means 'single entity', the fundamental constructing block. Usually, it is 1 in mathematics and science.

Thus, unit price of something is price of 1 thing.

Thus, suppose we're taking about price of mangoes, then unit price will denote the price of 1 mango.

It is given that Vera went to the local salon to get a haircut. The cost was $24. Vera tipped the hair stylist 18%.

SO,

18% = 18/100 = 0.18

18% of 24 = 0.18*24

= 4.32

The tip is $4.32

Adding this tip amount onto the original bill leads to;

4.32+24 = 28.32

Hence, the total cost of the haircut including the tip will be $28.32.

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Given f(x)=5x−3 , find f(−2).

Answers

Answer:

-13

Step-by-step explanation:

What is the length of leg y of the right triangle? (1 point) A right triangle with hypotenuse 37 and legs 35 and y 2 8 12 35

Answers

the answer is 25 and 40

Answer:

12

Step-by-step explanation:

I took the test and the answer was 12

Carla’s vet suggested that her new puppy have at least 64 square feet of exercise space. Carla plans to build an enclosed, square exercise pen in her back yard. How much fencing will she need for this exercise pen?

Answers

I think it’s 16 per side but that’s 64 ft around I hope this helps sorry if it’s wrong

Pat is at a right angle from Chris and Jaime, and Chris is at a 48° angle from Pat and Jaime. Which statements are true? Check all that apply.

Answers

Answer:

right angle

Step-by-step explanation:

Answer:a,b, and d

Step-by-step explanation:

PLEASE HELP DUE IN 1 HOUR IT WILL GIVE YOU 36 POINTS

Answers

I got this, I hope it solves your question
Hmmm interesting.. but yeah the guy above me is correct.

Evaluate function expression −2⋅f(−6)−7⋅g(−7)=

Answers

I hope this is the answer you’re looking for

Answer:

11

Step-by-step explanation:

-2 • f(-6) -7 • g(-7) = ?

As per graph:

f(-6) = 5

g(-7) = -3

Calculation:

-2 • f(-6) -7 • g(-7) =

-2(5) - 7(-3) =

-10 + 21 =

11

The measure of one of the acute angles in a right triangle is given. what is the measure of the other angle?
1. 20.8 2. y 3. 24 2/3

Answers

Number 1 20.8 ........

i need to finish this ASAP, im already behind and i rly need this. (you dont need to do the work, just answer the other things please) thx!

Answers

Answer:

slope: 1/2, y-intercept: (0, 13/2), y: 6 and 7

slope: -2, y-intercept: (0,15), y: 9 and 5

Step-by-step explanation:

How do you create zero pairs using algebra tiles?
O Add a positive unit tile to a negative unit tile.
O Add a positive unit tile to a positive unit tile.
* Add a negative x-tile to a negative x-tile.
VX
O Add a negative x-tile to a positive unit tile.

Answers

the correct answers are shown in my screenshot. #happycheating <333

Help! Math Perimeter!

Answers

Area= 3x0.8 =2.4

Perimeter= 3+3=6
0.8+0.8=1.6
6+1.6=7.6

Pls mark brainliest

Please help me out I will name the brainliest!!!!
Answer question 1-8!

Answers

Answer:

Step-by-step explanation:

3. function

4. not a function

5. function

6. not a function

7. function

8. not a function

twenty three less than sum of forty nine and thirty seven what is the answer?

Answers

Answer:

63.

Step-by-step explanation:

49 plus 37 is 86. subtract that by 23 and you get 63.

2.3y +7 =-11 hehebbn​

Answers

Answer:

y=-6

Step-by-step explanation:

3y+7=-11

3y=-11-7

3y=-18

y=-18/3

y=-6

solve for w and simplify this fraction 3/2w=-20​

Answers

Answer:

If I'm correct, the answer should be  negative 40/3.

Step-by-step explanation:

Because you first combine multiplied terms into a single fraction, then you multiply all terms by the same value to eliminate fraction denominators. Now you simplify it, by canceling multiplied terms that are in the denominator and then you multiply the numbers. Now you will divide both sides of the equation by the same term. Finally, you will simplify the equation.

(Hope this helps) I had to get a little help myself on this problem)

Complete the statement with the term that makes it true.

Measures of _____ show how the data is distributed in a set.

1. variability
2. mean
3. deviation

Answers

Answer:

I think the right answer is 3 I. E deviation abi

Answer:

number 2 mean

Step-by-step explanation:

1. What equation in slope intercept form represents the line that passes through the points (-2, 4) and (3, -1)?

Answers

m = (4- -1) / ( -2-3)

   = 5/-5

   = -1

equation:

(y-4) = -1(x+2)

y= -x -2 +4

y= -x +2

Or

y = 2 - x

what is seven hundredths times three and nine tenths??? DOES ANYONE KNOW???

Answers

Answer:

2730

Step-by-step explanation:

700*39/10

700*39 = 27300

Then you divide by 10

So 2730.

Find the degree measure of each angle in tbr triangle

Answers

Answer: ∠p = 85; ∠Q = 72; ∠R = 23

have: m∠P + m∠Q + m∠R = 180°

=> 4x - 7 + 3x + 3 + x = 180°

⇔ 8x - 4 = 180

⇔ x = (180 + 4)/8

⇔ x = 23

=> m∠P = 4.23 - 7 = 85°

m∠R = 23°

m∠Q = 3.23 + 3 = 72°

Step-by-step explanation:

What is the value of x?

Answers

Answer:

x = 6

Step-by-step explanation:

Use the exterior angle theorem, which states that the 2 opposite interior angles add up to the measure of the exterior angle.

Set up an equation:

(8x - 13) + (9x - 10) = 11x + 13

Add like terms and solve for x:

17x - 23 = 11x + 13

6x - 23 = 13

6x = 36

x = 6

So, x = 6

Answer:

6

Step-by-step explanation:

Round 46.832 to the nearest tenth

Answers

Answer:

46.8

Step-by-step explanation:

The reason for this is because if it is 5 or more round it up. if it is 4 or less let it rest. The answer 46.832 would hence round to 46.8 since the 8 in 46.832 is the tenths place.

if a pair of supplementary angles are in ratio 3:7 find them.​

Answers

Answer:

3x +7x=180

10x=180

x=180÷10

x=18

mark me in brainlist

3x+7x=180

10x=180

X=180/10

X=18

3x=3*18=54

7x=7*18=126

John is collecting orange and green marbles in a bag. The ratio of orange marbles to green marbles is 6 to 4. If he has a total of 200 marbles in the bag, how many green marbles will there be? pls help and answer soon!

Answers

Answer:

120:80

120 orange

80 green

The number of orange marbles to green marbles will be 120 and 80 respectively.

What are ratios and proportions?

An ordered pair of numbers a and b, represented as a / b, is a ratio if b is not equal to 0. A proportion is an equation that sets two ratios at the same value.

The numerical relationship between two values demonstrates how frequently one value contains or is contained within another.

Given that John is collecting orange and green marbles in a bag. The ratio of orange marbles to green marbles is 6 to 4. If he has a total of 200 marbles in the bag.

The number of bags will be calculated as:-

6x + 4x = 200

10x = 200

x = 20

Orange = 6x = 6 x 20 = 120

Green = 4x = 4 x 20 = 80

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PLEASE HELP I WILL GIVE BRAINALIST

Answers

Answer:

Step-by-step explanation:

Original 873  New 781

The new went down by about 10.5%

873*10.5%= 91.67

873-91.67= 781.33

It decreased 10.5%

The Price of a pair of shoes increases from $66 to $70 What is the percent increase to the nearest percent?

Answers

increase = 70 - 66 = $4
Percent = 4/66 * 100
= 6 percent

Answer:

6%

Step-by-step explanation:

Please answer the question I that picture ASAP, I will give brainiest!!!!

Answers

Answer:

11 i thinks the answer

Step-by-step explanation:

sorry if im wrong mark me as brainliest

Find the slope of the line passing through the points (9,3) and (9,-5).

Answers

Answer: its 8

Step-by-step explanation:

Use the distance formula to determine the distance between two points.


Four dice are placed into your hand and you roll all dice onto the floor. What are the odds that all
four dice will show a 3?


Please help me

Answers

Answer:

1/1296

Step-by-step explanation:

Kendall tends to spend 32% of her homework time on math. If it took her 26 minutes to complete her math homework, how much time did she spend on homework

Answers

81.25 minutes?
It says I need more characters, so I’m adding this sentence

can someone please help?

Answers

Answer:sure

Step-by-step explanation:

Answer:

x=11 and the measure for angle B is 80

Step-by-step explanation:

First you would set the equations equal to each other

8x-8 = 5x+25

-5x       -5x

Then i subtracted 5x from both sides

3x-8 = 25

  +8   +8

Then I added 8 to both sides

3x = 33

Divide both sides by three and you'll get x=11

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