The students in the fourth and fifth grades are going to a concert. There are 178 students. Each row has 8 seats. The fifth grade students fill 12 rows. How many rows are needed for the fourth graders?

Question

Sonia

Mathematics

31 December, 09:10

The students in the fourth and fifth grades are going to a concert. There are 178 students. Each row has 8 seats. The fifth grade students fill 12 rows. How many rows are needed for the fourth graders?

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Answers (1)

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Ashleigh Barr · Answer 1

Step-by-step explanation: So there are 148 students total and we know the fifth graders filled up 12 rows and since each row has a number of 8 seats we should multiply 8 times 12, which is equal to 96. Now in order to find the number of rows needed for the fourth graders we should first, subtract 178 minus 96; that is equal to 82. Next, we should divide 82 by the number of seats in each row since what we are trying to find id the number of rows needed for the fourth graders. So, we should divide 82 by 8 which is equal to 10. 25.

The number of rows needed is 11 since all students need to have a seat; the answer cannot be 10 because that means a few students would not have a seat.