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)

Answer 1

In the recipe, the ratio of borax to washing soda to soap flakes is 2:2:1.

If Lenny uses 7 cups of soap flakes, we can determine the quantity of borax and washing soda needed based on the ratio:

1 part of soap flakes corresponds to 2 parts of borax and 2 parts of washing soda.

Since Lenny is using 7 cups of soap flakes (which represents 1 part), the required parts of borax and washing soda would be:

• Borax: 2 parts
• Washing soda: 2 parts

Since each part is equal to the amount of soap flakes (7 cups), we can calculate the cups needed:

• Borax: 2 parts × 7 cups = 14 cups
• Washing soda: 2 parts × 7 cups = 14 cups

Now, combining the amounts for borax and washing soda:

14 cups (borax) + 14 cups (washing soda) = 28 cups.

Thus, Lenny needs a total of 28 cups of borax and washing soda combined.