Find a number which is when added to its square the sum will be 72
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Answer:
She have <u>15 quarters</u>.
Step-by-step explanation:
Given:
Marla has $4.55 in dimes and quarters.
Now, to find the quarters she have, if she has 7 more quarters than dimes.
Let the number of dimes be .
And the number of quarters be .
As the value of dime = $0.10.
And the value of quarter = $0.25.
So, according to question:
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<em>Subtracting both sides by 1.75 we get:</em>
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<em>Dividing both sides by 0.35 we get:</em>
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Thus, the number of dimes = 8.
And the number of quarters = = 7+8 = 15.
Therefore, she have 15 quarters.