marla has 4.55 in dimes and quarters. if she ha s7 more quarters than dimes, how many quarters doe she have?

number of dimes is 8

number of quarters is 15

Step-by-step explanation:

let 'd' = number of dimes

let 'd+7' = number of quarters

.10d + .25(d + 7) = 4.55

.10d + .25d + 1.75 = 4.55

.35d = 2.80

d = 8

q = 7 + 8

step-by-step explanation:

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do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation: