SOLUTION: Emily has $4.62. She has 2 one $ bills, 9 quarters, 3 dimes, and the rest in pennies. How many pennies does emily have?

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Question 598174: Emily has $4.62. She has 2 one $ bills, 9 quarters, 3 dimes, and the rest in pennies. How many pennies does emily have?
Answer by math-vortex(648) About Me  (Show Source):
You can put this solution on YOUR website!
Hi, there--
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[I] Define your variables
Let p be the number of pennies
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[II] Create an equation showing the given relationships
The value of two $1 bills is 2*1.00, or $2.00.
The value of nine quarters is 9*.25, or $2.25.
The value of 3 dines is 3*.10, or $.30.
The value of the pennies is (p)*(.01), or 0.01p.
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The value of Emily's money all together is $4.62. The equation is
4.62=2.00%2B2.25%2B.30%2B0.01p
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[III] Solve the equation for p.
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Simplify.
4.62=2.00%2B2.25%2B.30%2B0.01p
4.62=4.55%2B0.01p
4.62-4.55=0.01p
0.07=0.01p
0.07%2F0.01=p
p=7
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Emily has 7 pennies.
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I hope that helps. Feel free to email via gmail if you have questions about my solution.
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Ms.Figgy
math.in.the.vortex@gmail.com