Lenny is making his own laundry soap. The recipe calls for 2 parts borax, 2 parts washing soda, and 1 part soap flakes. If Lenny uses 7 cups of soap flakes, how many cups of borax and washing soda combined does he need?(1 point)
Responses
28 cups
28 cups
7 cups
7 cups
14 cups
14 cups
21 cups
To find the amount of borax and washing soda combined, we need to determine the ratio of borax and washing soda to soap flakes in the recipe. Since the recipe calls for 2 parts borax and 2 parts washing soda to 1 part soap flakes, the combined amount of borax and washing soda should be the same as the combined amount of soap flakes.
Since Lenny is using 7 cups of soap flakes, he will need 7 cups of borax and 7 cups of washing soda. Therefore, the correct answer is:
7 cups