a news paper carrier has 10.30 in change. he has two more quarters than dimes but three times as many nickles as quarters. how m

Question

Tema [17]

2 years ago

12

a news paper carrier has 10.30 in change. he has two more quarters than dimes but three times as many nickles as quarters. how m

any coins of each type does he have

Mathematics

1 answer:

Karolina [17] · Answer 1 · 2022-06-05T07:36:35+03:00

Karolina [17]2 years ago

4 0

A) .05n + .10d + .25 q = 10.30
B) d +2 = q
C) n = 3q
Substituting equations B and C into A
A) .05*3q + .10(q-2) + .25 q = 10.30
A) .15q + .1q -.2 + .25q = 10.30
A) .50q = 10.50
21 quarters

C) n = 3q
C) n = 3*21
63 nickels

B) d +2 = q
d + 2 = 21
19 dimes