The 128 employees of a company volunteer 12,480 hours in 26 weeks. On average, how many hours do they all volunteer per weeks? O
1 answer:
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There are $9842 in her account at the end of last year.
Step-by-step explanation:
Given,
Amount in account = $7600
Increment by the end of year = 29.5%
Amount of increase = 29.5% of amount in account
Amount of increase =
Amount of increase = 0.295*7600 = $2242
The increase is $2242.
Amount after increase = 7600 + 2242 = $9842
There are $9842 in her account at the end of last year.
Keywords: percentage, division
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ANSWER: 32 five-dollar bills
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EXPLANATION:
Let x be number of $5 bills
Let y be number of $10 bills
Since we have total of 38 bills, we must have the sum of x and y be 38
x + y = 38 (I)
Since the total amount deposited is $220, we must have the sum of 5x and 10y be 220 (x and y are just the "number of" their respective bills, so we multiply them by their value to get the total value):
5x + 10y = 220 (II)
System of equations:
Divide both sides of equation (II) by 5 so our numbers become smaller
Rearrange (I) to solve for y so that we can substitute into (II)
Substituting this into equation (II) for the y:
We have 32 five-dollar bills
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If we want to finish off the question, use y = 38 - x to figure out number of $10 bills
32 five-dollar bills and 6 ten-dollar bills