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4 years ago

13

Zachary's dad gave him $80 for cleaning out the garage. He used the money to buy a $14.50 book and three games that cost $8.20 e

ach. Zachary also
bought lunch for himself.

If Zachary went home with 1/4 of the money his dad gave him, how much was his lunch?

1 answer:

olya-2409 [2.1K]4 years ago

7 0

Answer:

lunch was $20.90

Step-by-step explanation:

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3x - 7 + 4x = 28

Combine like terms

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Add 7 to each side

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Dean took out a 10-year loan for $40,000 at an APR of 4% compounded monthly. What will his balance be after he has made exactly

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The balance be after he has made exactly half of his monthly payments is $56881.4.

Step-by-step explanation:

Given : Dean took out a 10-year loan for $40,000 at an APR of 4% compounded monthly.

To find : What will his balance be after he has made exactly half of his monthly payments?

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Formula of monthly payment ,

$M=\frac{\text{Amount}}{\text{Discount factor}}$

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Now, put all the values we get,

$D=\frac{1-(1+i)^{-n}}{i}$

$D=\frac{1-(1+0.04)^{-120}}{0.04}$

$D=\frac{1-(1.04)^{-120}}{0.04}$

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