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Rashid [163]
3 years ago
5

Brandon has a cup of quarters and dimes with the total value of $3.80. The number of quarters is 4 less than twice the number of

dimes. How many quarters and how many how many dimes does Brandon have
Mathematics
1 answer:
cestrela7 [59]3 years ago
7 0

Answer:

Dimes = 8 and

Quarters = 12

Step-by-step explanation:

Total value = 380 cents

let dimes be x

quarters be 2x - 4

100 pennies = $1

1 dime = 10 pennies

1 quarter = 25 pennies

Therefore;

$ 3.78 = 378 pennies

10x+25(2x-4)=378

10x + 50 x - 100 = 378

60 x = 378 + 100

60 x = 478

     x = 478/60

        = 7.9667

        ≈ 8

Therefore;

Dimes = 8 and

Quarters = 12

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