Question

Eric's chocolate bar is 56% cocoa. If the weight of the chocolate bar is 78 grams, how many grams of cocoa does it contain? Round your answer to the nearest tenth.

Answer 1

The answer to your question is 43.7 g of chocolate

Explanation:

Data

56% cocoa

mass of a chocolate bar = 78 g

Process

To solve this problem, use proportions and cross multiplication, consider the mass of the bar is 100%.

78 g of chocolate ------------------- 100%

x ------------------ 56%

x = (56 x 78) / 100

x = 4368/100

x = 43.68 g

-Round to the nearest tenth

Mass of the chocolate = 43.7 g