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
14 cups
14 cups
21 cups
21 cups
28 cups
28 cups
7 cups
7 cups
The recipe calls for 2 parts borax to 1 part soap flakes. Since Lenny is using 7 cups of soap flakes, he will need 2 times the amount of borax. Therefore, he needs 2 * 7 = 14 cups of borax.
The recipe also calls for 2 parts washing soda to 1 part soap flakes. Similarly, Lenny will need 2 times the amount of washing soda. Therefore, he needs 2 * 7 = 14 cups of washing soda.
In total, Lenny needs 14 cups of borax and 14 cups of washing soda, which combined is 14 + 14 = 28 cups.
So the correct answer is 28 cups.
To determine the amount of borax and washing soda needed, we need to calculate the combined total of borax and washing soda for the given recipe. The ratio of the recipe is 2 parts borax to 2 parts washing soda to 1 part soap flakes.
Since Lenny is using 7 cups of soap flakes, we need to calculate the amount of borax and washing soda needed for that quantity.
To find the amount of borax needed, we multiply the ratio of borax to soap flakes by the given amount of soap flakes: 2 parts borax / 1 part soap flakes = 2/1 = 2. Multiply this by 7 cups of soap flakes: 2 x 7 = 14 cups of borax.
To find the amount of washing soda needed, we follow the same calculation: 2 parts washing soda / 1 part soap flakes = 2/1 = 2. Multiply this by 7 cups of soap flakes: 2 x 7 = 14 cups of washing soda.
Therefore, Lenny needs a combined total of 14 cups of borax and 14 cups of washing soda. The answer is 28 cups.
To find out how many cups of borax and washing soda Lenny needs, we first need to determine the parts of borax and washing soda relative to the soap flakes in the recipe.
The recipe states that the ratio is 2 parts borax : 2 parts washing soda : 1 part soap flakes. This means that for every 2 cups of borax and washing soda, there is 1 cup of soap flakes.
Since Lenny is using 7 cups of soap flakes, we can calculate the amount of borax and washing soda required by multiplying 7 by the respective ratios:
Borax = 7 cups of soap flakes * (2 parts borax / 1 part soap flakes) = 14 cups of borax
Washing soda = 7 cups of soap flakes * (2 parts washing soda / 1 part soap flakes) = 14 cups of washing soda
Therefore, Lenny needs a total of 14 cups of borax and 14 cups of washing soda combined.