Which of the following is equal to the expression listed below? 45 + 18
A. (9 +5)(9+2)
B. 9+ (5 x 2)
C. (9 x 5)(9 x 2)
D. 9(5+2)

Step-by-step explanation:

9(5 + 2)

the answer is D

Flour : sugar = (1/3) : (1/5) = 5 : 3 . . . . . . . . multiply the first ratio by 15 to eliminate fractions

The total of ratio units in the last representation is 5+3=8, so for a recipe of 16 cups, each ratio unit will stand for 16/8 = 2 cups.

Multiplying the ratio by 2 cups, we find Amanda will need

... 10 cups flour : 6 cups sugar

for her recipe.