Question

five grams of sugar are added to a 70 - gram serving of a breakfast cereal that is 10% sugar. what is the percent concentration of sugar in the resulting mixture? %

Explanation:

Step1: Calculate initial sugar amount

The initial cereal is 70 - gram and 10% sugar. So the initial sugar amount is $70\times0.1 = 7$ grams.

Step2: Calculate total sugar amount

5 grams of sugar are added. So the total sugar amount is $7 + 5=12$ grams.

Step3: Calculate total mixture amount

The initial cereal is 70 grams and 5 grams of sugar are added. So the total mixture amount is $70 + 5 = 75$ grams.

Step4: Calculate percent - concentration of sugar

The percent - concentration of sugar is $\frac{12}{75}\times100\%=16\%$.

Answer:

16%