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3 years ago

What is -15x=-240?????????

2 answers:

8 0

Hey!

To solve this problem we'll divide both sides by -15. Doing this will get $x$ on its own.

Original Equation :
-15x = 240

New Equation {Changed by Dividing Both Sides by -15} :
$\frac{-15x}{-15}$ = $\frac{-240}{-15}$

Alright, now we simplify solve the equation.

Old Equation :
$\frac{-15x}{-15}$ = $\frac{-240}{-15}$

Solved {Old Equation Solved} :
x = 16

Now we know that in the equation -15x = -240, x = 16.

Hope this helps!

- Lindsey Frazier ♥

Vlad [161]3 years ago

4 0

You divide -15 on both sides to keep the x alone
-240/ -15=16
A negative divided by a negative is a positive so x=16

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Find three rational numbers between -5 and -4.

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Answer:

-4 3/4, -4 1/2, -4 1/4

Step-by-step explanation:

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3 years ago

The equations 8x +4y = 32 and 16x +12y = 72 represent the cost for lunch and dinner for a family eating out on vacation. If x is

Nookie1986 [14]

Answer:

There are 3 adults in the family.

Step-by-step explanation:

The equations 8x + 4y = 32 and 16x + 12y = 72 represent the cost of lunch and dinner for a family in which x is the number of adults and y is the number of children.

We have to find the number of adults or the value of x by solving these equations.

equations are 8x + 4y = 32 -------(1)

16x + 12y = 72 --------(2)

Now we will multiply equation 1 by 3 and subtract it by equation 2.

(16x + 12y) -3(8x + 4y) = 72 - 96

16x + 12y - 24x - 12y = -24

(16x - 24x) + (12y - 12y) = -24

-8x = - 24

8x = 24

x = 3

Therefore, there are 3 adults in the family.

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2 years ago

Andre is saving money for college. He had $1,500 in his account. At the end of the year the bank adds 3% to the balance to his a

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3. Banks use interest in order to make a cut of the money.

4 0

2 years ago

Read 2 more answers

Ashley and Keely shared some Hershey Kisses in the ratio of 5:2. If Keely had 12 Hershey Kisses, how many did Ashley have?

wolverine [178]

Answer:

Ashely had 30 kisses! Muah!

Step-by-step explanation:

Ratio of Ashely to Keely is 5 : 2 and we know Keely had 12. Keely represents the 2 in this ratio, and how do we get from 2 to 12? We multiply by 6. We have to multiply by 6 on the other side too then. 5 times 6 is 30, so Ashely had 30 hershey kisses.

In real life, not in ratio form, Ashely had 30 kisses and Keely had 12.

Please mark brainliest if possible, have a nice day! :)

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2 years ago

15% of Alina’s workout consisted of cardio exercise. 25% of Dane’s workout consisted of cardio exercise. Which statement must be

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The correct answer is B. If Alina’s workout was 80 minutes, and Dane’s workout was 48 minutes, they spent the same amount of time on cardio exercise.

To figure this out, first find 15% of 80 and then 25% of 48.

To find 15% of 80, you can first find 10% of 80 which is 8(just move the decimal one place to the left). The remaining 5% will be half of 8 since 8 is 10%. Add both the numbers up and you will get 12. (8+4=12)

To find 25% of 48, you can divide 48 by 4. Since percent means 'out of 100', 25% is 25 of 100. 100 divided by 25 is equal to 4. So, 48 divided by 4 is equal to 12.

So, the final answer is B. They both equal to 12.

Hope it helps :)

6 0

2 years ago