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 21 cups 21 cups 28 cups 28 cups 14 cups 14 cups 7 cups

Question

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 21 cups 21 cups 28 cups 28 cups 14 cups 14 cups 7 cups

Answer 1

The recipe calls for 2 parts borax and 2 parts washing soda for every 1 part soap flakes.

Lenny is using 7 cups of soap flakes. Since the ratio is 2:2:1 for borax:washing soda:soap flakes, you need to maintain this proportion.

For every 1 cup of soap flakes, you need 2 cups of borax and 2 cups of washing soda.

So, for 7 cups of soap flakes, you'd need:

7 cups soap flakes * 2 cups borax = 14 cups borax
7 cups soap flakes * 2 cups washing soda = 14 cups washing soda

Now, add these together to find the total cups of borax and washing soda:

14 cups borax + 14 cups washing soda = 28 cups combined

Therefore, Lenny needs 28 cups of borax and washing soda combined.