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tankabanditka [31]
3 years ago
8

Sally has 20 coins in her piggy bank, all dimes and quarters. The total amount of money is $3.05 If d = the number of dimes and

q = the number of quarters Sally has, one of the linear equations that could be used to model this situations is
Mathematics
1 answer:
mars1129 [50]3 years ago
4 0

Answer:

d + q = 20

0.25d + 0.10q = 3.05

Step-by-step explanation:

Given

Coins = 20

Value = $3.05

Required

Determine the equation that represent this

From the question, we have that

d = the number of dimes

q = the number of quarters

This implies that;

d + q = 20

Also;

1 d=\$0.25\ \ and\ \\1 q= \$0.10---------- Standard unit of conversion;

This implies that

0.25d + 0.10q = 3.05

Hence, the equations are:

d + q = 20

0.25d + 0.10q = 3.05

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