Question

A. A school has 700 students. If 2 out of every 5 students are high school students, how many high school students are there at the school?

B. If each highschool student spends 279.50 minutes in a school a day, how many total minutes do the high school students spend in class each day?

Extension: If the average middle schooler spends 10 percent more time in class than the average highschooler, how much time do the middle schoolers spend in class a day?​

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Answer 1

Explanation:

280 students

78260 minutes

307.45 minutes per day

Answer 2

280 students

78260 minutes

307.45 minutes per day

Explanation:

A We multiply the total number of students by the fraction that are high schoolers to determine the total number of high schoolers

700 * 2/5 = 280

There are 280 high schoolers

B The total time high schoolers spend in school is the time 1 student spends in school times the number of students

279.5 * 280 =78260 minutes

C The high schoolers spends 279.5 minutes in class

10% = .1

We need to add 10% to this time

279.5 * 10%

279.5 * .1 = 27.95

Add this because they spend 10% more time

279.5 + 27.95 =307.45 minutes