Ask question

Ask question

All categories

3 years ago

6

Which method will NOT solve this equation completely? 4h -7 = 25

2 answers:

Pepsi [2]3 years ago

8 0

4h=25+7
4h=32
h=8
therefore h is eight

mixas84 [53]3 years ago

5 0

Answer:

Subtract 7 from both sides, and then divide both sides by 1/4.

You might be interested in

1. What is the value of the y variable in the solution to the following system of equations?

ollegr [7]

Part 1)

we have

$3x-6y=3$ ------> equation A

$7x-5y=-11$ ------> equation B

Multiply by $-7$ the equation A

$-7(3x-6y)=-7*3$

$-21x+42y=-21$ ------> equation C

Multiply by $3$ the equation B

$3*(7x-5y)=-11*3$

$21x-15y=-33$ -------> equation D

Adds equation C and equation D

$-21x+42y=-21 \\21x-15y=-33\\---------- \\ 42y-15y=-21-33\\27y=-54 \\ y=-2$

therefore

<u>the answer Part 1) is the option A </u>

$y=-2$

Part 2)

we have

$3x+y=6$

$y=-3x+6$ ------> equation A

$6x+2y=8$

Simplify Divide by $2$ both sides

$3x+y=4$

$y=-3x+4$ ------> equation B

the lines A and B are parallel lines, because the slope m is equal

so

The system has no solution

therefore

<u>the answer Part 2) is the option D</u>

There is no x value as there is no solution to the system.

Part 3)

we have

$4x+2y=6$ ------> equation A

$x-y=3$

$y=x-3$ ------> equation B

substitute equation B in equation A

$4x+2[x-3]=6$

$6x-6=6$

$6x=12$

$x=2$

therefore

<u>the answer part 3) is the option D</u>

$x=2$

Part 4)

Let

x---------> The number of one-step equations

y---------> The number of two-step equations

we know that

$x+y=1,120$

$x=1,120-y$ -------> equation A

$3x-2y=1,300$ ------> equation B

substitute equation A in equation B

$3[1,120-y]-2y=1,300$

$3,360-5y=1,300$

$5y=3,360-1,300$

$5y=2,060$

$y=412$

therefore

<u>the answer part 4) is the option D</u>

$y=412$

8 0

2 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B12%7D%7Bx%7D%20%20%5C%5C%20y%20%3D%20%20%5Cfrac%7B6%7D%7B%20%7Bx%7D%5E%

soldi70 [24.7K]

Answer:

x = 1/2

y = 24

Step-by-step explanation:

y = 12 / x

y = 6 / x²

12 / x = 6 / x²

x² / x = 6 / 12

x = 1 / 2

y = 12 / x

y = 12 / (1/2)

y = 24

4 0

2 years ago

What is 986 divided by 68

Andreyy89

Answer: 14.5

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Find the two missing numbers shown with an "*" in the equation.

SVETLANKA909090 [29]

I hope it’s helps i have to write more so I’m writing

5 0

2 years ago

Read 2 more answers

What is the area of a circle with a radius of 43 cm? Use 3.14 for π and round your answer to the nearest hundredth.

amm1812

<span>I think your answer would be 270.04:)
Hope this helps:)
</span>

6 0

3 years ago