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Svet_ta [14]
4 years ago
12

What is the solution set of the following equation? -8x + x + 15 = -7x + 12 {all reals} Ø { }

Mathematics
2 answers:
ruslelena [56]4 years ago
8 0

Answer:

no solutions

Step-by-step explanation:

-8x + x + 15 = -7x + 12

Combine terms

-8x + x + 15 = -7x + 12

-7x +15 = -7x +12

Add 7x to each side

15 = 12

This is never true so there are no solutions

True [87]4 years ago
4 0

Steps to solve:

-8x + x + 15 = -7x + 12

~Combine like terms

-7x + 15 = -7x + 12

~Add 7x to both sides

-7x + 7x + 15 = -7x + 7x + 12

~Simplify

15 = 12

There are no solutions.

Best of Luck!

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When 200 gallons of oil were removed from a tank, the volume of oil left in the tank was 3/7 of the tank's capacity. what was th
ki77a [65]

Answer:

Step-by-step explanation:

"When 200 gallons of oil were removed from a tank" algebraically looks like this:

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3/7(V)

Therefore, the equation is

V - 200 = 3/7(V)

Begin by multiplying both sides by 7:

7(V - 200) = 3V and

7V - 1400 = 3V so

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V = 350 gallons

That's if the volume of the oil in the tank was 3/7 of the tank's capacity.

For the other part of the problem, we set up the equation almost the same, except the 3/7 is a 1/2:

V - 200 = 1/2(V)

Multiplying both sides by 2 gives you

2(V - 200) = V and

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3 years ago
The cafeteria wants to buy 4,500 new forks. If each package contains 90 forks, how many packages should the cafeteria buy?
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Answer:

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