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ohaa [14]
3 years ago
11

You collect a total of $75 in donations from three people. The three donations are in the ratio 4 : 4 : 7.

Mathematics
1 answer:
Elis [28]3 years ago
7 0
75 in donations...ratio of 4:4:7....added (4+4+7) = 15

4/15(75) = 300/15 = 20 <==
4/15(75) = 300/15 = 20 <==
7/15(75) = 525/15 = 35 <==

the smaller donation is $ 20
the larger donation is $ 15 greater then the smaller donation

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Answer:

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Step-by-step explanation:

Information given

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Replacing the info given we got:

t=\frac{24-25}{\frac{2.2}{\sqrt{14}}}=-1.70    

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df=n-1=14-1=13  

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