Question

Exercise 8.1
Check whether the given ratios are equivalent.
a. 3:5, 12:20 b. 12:19, 18:25
C. 1:7, 7:14 d. 100:11, 1000 : 110​

Answer 1

3:5 and 12:20 are equal because 3×4=12 and 5×4=20.

12:19 and 18:25 are not equal.

.

1:7 and 7:14 are equal because 1×7=7 and 7×2=14

100:11 and 1000:110 are equal because 100×10=1000 and 11×10=110.

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Answer 2

Step-by-step explanation:

12×25

8×19

300= 342

12:19 and 18:25 are not equivalent