Question

In a survey asking 1200 students what they did on winter vacation, the following results were found: 45% visited family and 270 had family visit them. The remainder of the students didn't see any family members outside of their immediate families.
A. How many students visited families?

B. Your bill at a restaurant comes to $56. You want to leave a 15% tip. How much should you leave?

Answer 1

Hello!

a. You have to find 45% of 1,200. To find percents, change the % to a decimal and multiply

45% = 0.45

0.45 × 1,200 = 540

$\framebox {540 students visited their family}$

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b. You have to find 15% of 56. To find percents, change the % to a decimal and multiply.

15% = 0.15

0.15 × 56 = 8.4

$\framebox{\ 8.40}$