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ksawyer745
02.07.2019 •
Mathematics
Matthew earns $0.10 for each local newspaper he delivers twice a week. his brother earns $0.25 for delivering each sunday newspaper. they deliver papers to the same number of houses and together they earn $13.95 per week. how many papers does each boy deliver each week? a. matthew: 62 papers; brother: 31 papers b. matthew: 58 papers; brother: 29 papers c. matthew: 66 papers; brother: 33 apers d. matthew: 50 papers; brother: 25 papers
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Ответ:
Let the number of houses the boys deliver newspaper = x
Matthew delivers 2x newspapers
His brother delivers x newspapers,
Matthew earns per paper = $0.10
Matthew delivers twice a week so he earns =![0.10\times2=0.20](/tpl/images/0041/0185/184a7.png)
His brother earns per newspaper = $0.25
So, equation becomes,
So, there are 31 houses where both these boys deliver newspapers.
Hence, Matthew delivers 2*31= 62 newspapers
His brother delivers 31 newspapers.
So, option A : Matthew: 62 papers; brother: 31 papers is the right option.
Ответ:
2 is for triangle
3 is for surface area
4 is for volume