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Nikitich [7]
3 years ago
15

Need help and have to show work

Mathematics
1 answer:
Lemur [1.5K]3 years ago
4 0
Plugging in 0 doesn't work so you can automatically rule out option D. 

Plugging in 1 is an easy one. 5.6 + 0.4(1) is 5.6 + 0.4 = 6. 6(1) is also 6. This rules out option A.

Now all we have to do is plug in 0.875 to see if it works. If it does, option C is the answer. If not, well... only leaves option B. 

5.6 + 0.4(0.875) = 5.6 + 0.35 = 5.95 

6(0.875) = 5.25 

So 0.875 does not make the statement true. 

Your answer is Option B. 

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Step-by-step explanation:

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3 0
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Read 2 more answers
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7 0
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Jlenok [28]
<span><span>ab:ac=3:5
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if cd is 5 cm then cd=2:5 then ab=3:x

2:5=3:x
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x=7.5 cm</span><span>
Happy studying! ^_^</span></span>
4 0
3 years ago
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