Use the value of the ratio to determine which ratios are equivalent to 7: 15.
a. 21: 45
b. 14: 45
c. 3: 5
d. 63: 135

a. 21: 45

d. 63: 135

Step-by-step explanation:

Ratio or Relationship of two quantities is the result of comparing two quantities.

Such a comparison could be indicated as a reason, in four different ways, in this way:

1)a: b

2)a ÷ b

3)a/b

d)The reason for a is a b.

Equivalent ratios can be used to show the same relationship between two quantities. Remember that the word "equivalent" means the same.

Problem development

We observe what are the equivalent relationships 7:15 and conclude that they are the following:

a.To find the equivalent ratio, we divide the numerator and denominator by the same number , In this case we divide by 3:

21: 45 = 21/45 = 21÷3 /45÷3 = 7/15

d.To find the equivalent ratio, we divide the numerator and denominator by the same number , In this case we divide by 9:

63: 135= 63/135 = 63÷9 /135÷9= 7/15

e) none of the above because the measure of angle cba is 101°