Question

From a pile of 100 pennies, 100 nickels, and 100 dimes. Select 21 coins that have a total value of exactly $1. You must use at least 1 coin of each type.

Brainliest for explaination!

Answer 1

Answer:

So, you need 10 penny, 4 nickles and 7 dimes

Lets, check it.

According to the question,

total coins = 21

7 + 4 + 10 = 21

21 =21

Now,

their value should equal $1.00 = 100 cents

Penny = 1 cent

nickle = 5 cent

dime = 10 cent,

So,

(10 *1) + (4 * 5) + (7 * 10) = 100

10 + 20 + 70 = 100

100 = 100

Step-by-step explanation:

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