CPM Homework Help : MC1 Problem 6-28

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6-28.

What portion of one dollar is represented by each of the following sets of coins? Express each answer both as a fraction and as a percent.

One quarter

Hint (a):
Remember that one dollar is $100$ cents and one quarter is $25$ cents.
$\frac{25}{100}=\frac{1}{4}$
Answer (a):
$25%$

Three dimes

Hint (b):
How many cents is three dimes?
How can you write this as a portion of $100$ ?
Answer (b):
$30\%$ . How do you write $30\%$ as a fraction?

Eight nickels

Hint (c):
Eight nickels is equal to $40$ cents.
Use parts (a) and (b) to help you express this as a fraction and a percent.

$23$ pennies

Hint (d):
If one quarter ( $25$ cents) is $25\%$ of a dollar, what percent is $23$ cents?

Five quarters

Hint (e):
By how much do you multiply one quarter to get five quarters?
Since you dealt with one quarter in part (a), you can use that as a guide for representing $5$ quarters as a fraction and a percent.

Nine dimes

Hint (f):
Use part (b) to help you with this problem.
Since nine dimes is three times three dimes, you need to multiply the answers for part (b) by three.

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