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Imani spent half of her weekly allowance playing mini golf. To earn more money her parents let her wash the car for 4$. What is her weekly allowance if she ended up with 12$ explain how you got it
-16$
-10.50
-8$
-12$

Respuesta :

mathstudent55

Her weekly allowance is x.

She spent half of the allowance, so she spent x/2 and had another x/2 left.

Then she earned $4. Now she has x/2 + 4.

She ended up with $12, so x/2 + 4 = 12

x/2 + 4 = 12

Subtract 4 from both sides.

x/2 = 8

Multiply both sides by 2.

x = 16

Answer: Her weekly allowance is $16.

Ammimochi

a = Imani's allowance

She spent half of it on mini-golf,

a/2

And earned $4 from her parents,

a/2 + 4

And ended the week with $12, so

a/2 + 4 = 12

Solve for a by isolating it, and you'll have your answer.

Move the +4 over by subtracting 4 from both sides:

a/2 + 4 - 4 = 12 - 4

+ 4 - 4 cancels out, so you should have a/2 = 8

Now, get rid of the denominator 2, multiply both sides 2,

a * a/2 = 8 * 2

2 times the denominator of 2 cancels out, and you're left with your answer.

So,

a = 16

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