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3 years ago

Solve the equation. Check the solution. 6/7x= - 18

Mathematics

2 answers:

dexar [7]3 years ago

8 0

Answer:

x= -21

Step-by-step explanation:

6/7x=-18

divide both sides by 6/7

------------

x= -21

------------

kiruha [24]3 years ago

5 0

Answer:

Standard form: x = -1/21 Decimal form: x = -0.047619

Step-by-step explanation:

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a square painting has an area of 81x^2-90x-25. A second square painting has an area of 25x^2+30x+9. What is an expression that r

galina1969 [7]

Answer:

The answer in the procedure

Step-by-step explanation:

Let

A1 ------> the area of the first square painting

A2 ----> the area of the second square painting

D -----> the difference of the areas

we have

$A1=81x^{2}-90x-25$

$A2=25x^{2}+30x+9$

case 1) The area of the second square painting is greater than the area of the first square painting

The difference of the area of the paintings is equal to subtract the area of the first square painting from the area of the second square painting

D=A2-A1

$D=(25x^{2}+30x+9)-(81x^{2}-90x-25)$

$D=(-56x^{2}+120x+34)$

case 2) The area of the first square painting is greater than the area of the second square painting

The difference of the area of the paintings is equal to subtract the area of the second square painting from the area of the first square painting

D=A1-A2

$D=(81x^{2}-90x-25)-(25x^{2}+30x+9)$

$D=(56x^{2}-120x-34)$

4 0

3 years ago

Please answer correctly !!!! Will mark brainliest !!

jek_recluse [69]

Answer:

h(u)=-7/6u

Step-by-step explanation:

To write a formula for v in terms of u, you need to first isolate v.

4u+8v=-3u+2v

Add 3u to both sides:

7u+8v=2v

Subtract 8v from both sides:

7u=-6v

Divide both sides by -6:

v=-7/6u

Hope this helps!

5 0

3 years ago

Read 2 more answers

£50 is worth €65 how many euros is £220 worth

Cloud [144]

Answer:

£220 is worth €247

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2 years ago

Does anyone know the answer to this? If you do please answer!

enot [183]

Answer:

The Y axes

Step-by-step explanation:

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2 years ago

Andre tried to solve the equation 1/4(x + 12) = 2. What was his mistake? *

Umnica [9.8K]

Answer:

x=-4

Step-by-step explanation:

x+12=8

x=8-12

Andre did not multiple both by four to get the exact whole number. He also, didnt subtract 12 which is not possible due to it being multiplied by 1/4.

5 0

2 years ago