A mud pie recipe calls for 1 part green grass, 2 parts dirt, 1 pebbles, and 1 part water . What percent of a mud pie is the dirt?
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10%
20%
30%
40%
The mud pie recipe calls for 2 parts dirt out of a total of 5 parts (1 part green grass + 2 parts dirt + 1 part pebbles + 1 part water = 5 parts).
To find the percentage, divide the number of parts of dirt by the total number of parts and multiply by 100:
(2 parts dirt / 5 total parts) * 100 = 40%
Therefore, 40% of a mud pie is dirt.