Question

chloe practiced the piano every night last week. this scatter plot shows the amount of time she practiced and the number of songs she played each night. piano practice today, chloe practiced for 30 minutes longer than she did on the night when she played the most songs. how many minutes did chloe practice today?

Explanation:

Step1: Find the night with the most songs

From the scatter - plot, the most number of songs is 9. The corresponding \(x\) - value (time) for 9 songs is 30 minutes.

Step2: Calculate today's practice time

Since Chloe practiced 30 minutes longer than the night with the most songs. So, we use the formula \(t = 30+30\).

$$t=60$$

Answer:

60