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)

Question

Responses

14 cups
14 cups

28 cups
28 cups

21 cups
21 cups

7 cups

Answer 1

To determine how many cups of borax and washing soda combined Lenny needs, we need to find the total number of parts in the recipe.

The recipe calls for:
- 2 parts borax
- 2 parts washing soda
- 1 part soap flakes

Therefore, there are a total of 2 + 2 + 1 = 5 parts in the recipe.

Since Lenny is using 7 cups of soap flakes, we can divide it by the number of parts in the recipe (5) to find the amount of each part.

Each part would be equal to 7/5 = 1.4 cups.

To find the amount of borax and washing soda combined, we multiply the number of parts (2 + 2) by the amount of each part (1.4 cups):

(2 + 2) * 1.4 = 4 * 1.4 = 5.6

So, Lenny needs a combined total of 5.6 cups of borax and washing soda.