Step-by-step explanation:
2. cross products
4. solve
8. 3 is to 8 as 10 is to 27
The proportion would be: 3/8 = 10/27
The cross products are 3 * 27 = 81 and 8 * 10 = 80
Since the cross products are not equal, it is not a proportion.
False.
16. The cross products are 5 * 2 = 10 and 30 * 1/3 = 10.
Since the cross products are equal, it is a proportion.
True.
38.
3/4 * x = 3 * 6
4/3 * 3/4 * x = 4/3 * 18
x = 24
40.
24 * x = 1.8 * 28
24x = 50.4
24x/24 = 50.4/24
x = 2.1
