SOLUTION: Mr. Thompson sold 4 vacuum cleaners in the first month. In the second month, he sold 3 times as many vacuum cleaners as the first month. In the third month, he sold 5 times as many

Algebra ->  Equations -> SOLUTION: Mr. Thompson sold 4 vacuum cleaners in the first month. In the second month, he sold 3 times as many vacuum cleaners as the first month. In the third month, he sold 5 times as many      Log On


   



Question 1121533: Mr. Thompson sold 4 vacuum cleaners in the first month. In the second month, he sold 3 times as many vacuum cleaners as the first month. In the third month, he sold 5 times as many vacuum cleaners as the first month.
a. How many vacuum cleaners did Mr. Thompson sell in the three months?
Mr. Thompson sold 36 vacuum cleaners in the three months.
b. He sold the vacuum cleaners for $435 each. How much money did Mr. Thompson earn? Mr. Thompson earned $15,660
c. Explain how you can use estimation to check your answer to part b.
Mr. Thomason sold 5 times more vacuum cleaners than his first month. 4 + (4 X 3) = 4 + 12+ 20=36. Mr. Thomason sold 36 vacuum cleaner during the third month. Each vacuum cleaner cost was $435: 36 X $435.00= $15, 660
Estimation:

Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
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Mr. Thompson sold 4 vacuum cleaners in the first month. In the second month, he sold 3 times as many vacuum cleaners as the first month. In the third month, he sold 5 times as many vacuum cleaners as the first month.
a. How many vacuum cleaners did Mr. Thompson sell in the three months?
Mr. Thompson sold 36 vacuum cleaners in the three months.
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MONTH NUMBER     VACUUMS SOLD
1                      4
2                     12
3                     20
Total                 36



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b. He sold the vacuum cleaners for $435 each. How much money did Mr. Thompson earn? Mr. Thompson earned $15,660
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Is this a question of revenue?
36%2Avacuums%2A435%2A%28dollars%2Fvacuum%29=15660%2Adollars


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c. Explain how you can use estimation to check your answer to part b.
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Methods to estimate could vary, but a very rough estimate can be:
36 vacuums at 435 dollars each,
40 vacuums at 400 dollars each (which are only approximate),
about 40%2A400=16000, obviously this way giving a high estimate.