Luis is making chocolate chip cookies. The recipe calls for 1/8 cup of almonds for every 3/4 cup of chocolate chips. If Luis uses 3 cups of chocolate chips, how many cups of almonds will he need? Round to the nearest tenth. (1 point)

0.4 cup

0.8 cup

0.5 cup

18.0 cup

1 answer

To determine the number of cups of almonds Luis needs, we can set up a proportion.

The proportion can be set up as follows:

1/8 cup almonds / 3/4 cup chocolate chips = x cups almonds / 3 cups chocolate chips

To solve for x, we can cross-multiply:

(1/8) * 3 = (3/4) * x

3/8 = 3/4 * x

Next, we can cross-multiply again to solve for x:

3 * 4 = 8 * x

12 = 8x

Divide both sides by 8 to find x:

12/8 = 8x/8

1.5 = x

Therefore, Luis will need 1.5 cups of almonds, which rounds to 1.5 cup.

So the correct answer is 0.5 cup.