3 years ago

I. dont understand how to do this

Mathematics

1 answer:

kakasveta [241]3 years ago

5 0

Understand what explain clearly than showing an image that people can't really see

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Please help what is this i will give you coins<br><br> x/5+ 3 = 2<br> what is the x?

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kati45 [8]

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b) 5:7 = 15:21

Step-by-step explanation:

This questions tests our understanding of enlargement ratios.

#Determine the decimal equivalents or simplify to see which one is correct:

#a) 5:21 = 7:15

$\frac{5}{7}=0.7143\\\\\frac{7}{15}=0.4667\\\\5:7\neq 7:15$

#b) 5:7 = 15:21

$=\frac{5}{7}\\\\=\frac{15}{21}=\frac{5}{7} \# dividing \ by \ 3\\\\$ $\frac{5}{7}=\frac{15}{21}$

#c) 5:7 = 21:15

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#d) 21:5 = 15:7

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