4. Cassie has a total of 110 coins in her piggy bank. All the coins are q total value of $20.30. How many quarters and how many dimes are
Solution:
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b

Step-by-step explanation:

its easy

there are 62 quarters and 48 dimes

Step-by-step explanation:

d + q = 110d = 110 - q

0.10d + 0.25q = 20.30

0.10(110 - q) + 0.25q = 20.30

11 - 0.10q + 0.25q = 20.30

-0.10q + 0.25q = 20.30 - 11

0.15q = 9.30

q = 9.30/0.15

q = 62 < there are 62 quarters

d = 110 - q

d = 110 - 62

d = 48 < there are 48 dimes

28

step-by-step explanation:

because that's the answer

step-by-step explanation: