The recipe calls for two parts borax, two parts washing soda, and one part soap flakes. Since Lenny uses 7 cups of soap flakes, he will need:
- 2 parts borax: 2 * 7 = 14 cups of borax
- 2 parts washing soda: 2 * 7 = 14 cups of washing soda
Therefore, he will need a total of 14 + 14 = 28 cups of borax and washing soda combined.
The correct answer is B. 28 cups.
Lenny's making his own laundry soap. The recipe calls for two parts borax, two parts washing soda, one part soap flakes. If money uses 7 cups of soap flakes, how many cups of borax and washing soda combined does he need
A. 14 cups
B. 28 cups
C. 7 cups
D. 21 cups
1 answer