Question

N nants. 2. Solve for x in each of the following proportions. 12 18 X 10 a. = X 45 21 C. d. 3 is to 5 as x is to 15. 2 C 5 7 1 3x 98 13 12

Answer 1

Explanation:

Here are the solutions for each proportion:

a) 12/18 = x/10

Cross-multiply: 12 * 10 = 18 * x

120 = 18x

x = 120 / 18

x = 6.67

b) x/45 = 21

Cross-multiply: x = 45 * 21

x = 945

c) 3/5 = x/15

Cross-multiply: 3 * 15 = 5 * x

45 = 5x

x = 45 / 5

x = 9

d) 2/5 = 7/(3x)

Cross-multiply: 2 * 3x = 5 * 7

6x = 35

x = 35 / 6

x = 5.83