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Crazy boy [7]
3 years ago
5

Can someone help me 1 or 4​

Mathematics
1 answer:
sleet_krkn [62]3 years ago
8 0

Answer:

No. 1: y = 90 (vertically opposite angles)

Also, x = 9. To find x, we'll have:

3x + 7 + 56 + 90 = 180 \\ (sum \: of \: angles \: on \:  a \: straight \: line) \\ 3x + 153 = 180 \\ 3x = 180 - 153 \\ 3x = 27 \\ \frac{3x}{3}  =  \frac{27}{3}   \\ x = 9.

No. 4: y = 62 (vertically opposite angles)

Also, x = 12. To find x, we have:

5x = 60 \\   \frac{5x}{5}  =  \frac{60}{5}  \\ x = 12.

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Now we will convert division problem into multiplication problem by flipping the 2nd fraction.

\text{Time taken by robot to complete each task}=\frac{3}{10}\times \frac{1}{8}

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