Question

the line plot shows the amount of time noah spends practicing the piano each day. each x represents 1 day. piano practice times how many total hours does noah spend practicing the piano? a. $\frac{14}{4}$ hours b. $\frac{2}{4}$ hour c. $\frac{13}{4}$ hours d. $\frac{6}{4}$ hours

Explanation:

Step1: Calculate hours for each time - point

For $\frac{1}{4}$ hour, there is 1 X, so the total time is $1\times\frac{1}{4}=\frac{1}{4}$ hours.
For $\frac{2}{4}$ hour, there are 3 Xs, so the total time is $3\times\frac{2}{4}=\frac{6}{4}$ hours.
For $\frac{3}{4}$ hour, there are 2 Xs, so the total time is $2\times\frac{3}{4}=\frac{6}{4}$ hours.

Step2: Sum up the total hours

$\frac{1}{4}+\frac{6}{4}+\frac{6}{4}=\frac{1 + 6+6}{4}=\frac{13}{4}$ hours.

Answer:

C. $\frac{13}{4}$ hours