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?
According to the recipe, Lenny needs to use 2 parts borax and 2 parts washing soda for every 1 part of soap flakes. Since Lenny is using 7 cups of soap flakes, he will need 2 * 7 = <<2*7=14>>14 cups of borax and washing soda combined.
To find out how many cups of borax and washing soda combined Lenny needs, we first need to determine the ratio of soap flakes to borax and washing soda.
The recipe states that Lenny needs 2 parts borax, 2 parts washing soda, and 1 part soap flakes. In other words, for every 1 part of soap flakes, he needs 2 parts of borax and 2 parts of washing soda.
Since Lenny is using 7 cups of soap flakes, we can use this ratio to find the amount of borax and washing soda he needs.
First, let's find the amount of borax he needs:
For every 1 part of soap flakes, Lenny needs 2 parts of borax.
So, if Lenny is using 7 cups of soap flakes, he will need 7 * 2 = 14 cups of borax.
Next, let's find the amount of washing soda he needs:
Again, for every 1 part of soap flakes, Lenny needs 2 parts of washing soda.
Therefore, if Lenny is using 7 cups of soap flakes, he will need 7 * 2 = 14 cups of washing soda.
To calculate the combined amount of borax and washing soda, we simply add the amounts together:
14 cups (borax) + 14 cups (washing soda) = 28 cups (borax and washing soda combined).
Therefore, Lenny needs a total of 28 cups of borax and washing soda combined for his laundry soap.
To find out how many cups of borax and washing soda combined Lenny needs, we first need to determine the ratio between the soap flakes, borax, and washing soda.
The recipe calls for 2 parts borax, 2 parts washing soda, and 1 part soap flakes. This means the ratio of borax to washing soda to soap flakes is 2:2:1.
Since Lenny uses 7 cups of soap flakes, we can calculate how much borax and washing soda he needs using the following steps:
1. Find the total number of parts in the ratio: 2 + 2 + 1 = 5 parts.
2. Divide the number of cups of soap flakes by the total number of parts: 7 cups / 5 parts = 1.4 cups per part.
3. Multiply the cup per part value by the number of parts for borax and washing soda:
- Borax: 2 parts x 1.4 cups per part = 2.8 cups of borax.
- Washing soda: 2 parts x 1.4 cups per part = 2.8 cups of washing soda.
Therefore, Lenny needs a combined total of 2.8 cups of both borax and washing soda.