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Sonja [21]
3 years ago
8

Gina has $72 in $1 bills, $5 bills, and $20 bills. If she has three times as many $1 bills as she has $5 bills, and only half as

many $20 bills as $5 bills, how many of each type of bill does each have?
Mathematics
1 answer:
Hoochie [10]3 years ago
6 0
Total number of bills Gina has = $72
Let the number of $5 bills =X
Number of $1 bills = 3X
Number of $20 bills = X/2
Then
X+3X+X/2=72
4X+X/2=72
8X/2+X/2=72
9X/2=72
X=72*2/9
X=16
So
The number of $5 bills = 16
The number of $1 bills = 48
The number of $20 bills = 8
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Here's how to convert 0.16666 to a fraction...

There is not much that can be done to figure out how to write 0.16666 as a fraction, except to literally use what the decimal portion of your number, the .16666, means.

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So we can just say that .16666 is the same as 16666/100000.

The fraction 16666/100000 is not reduced to lowest terms. We can reduce this fraction to lowest
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Why divide by 2? 2 is the Greatest Common Divisor (GCD)
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So your final answer is: 0.16666 can be written as the fraction 8333/50000

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