Eight less than two-fifths of the seventh grade students had a perfect attendance in the first quarter. If 142 students had perfect attendance, how many seventh grade students are there?

the number if seventh grade students is 375

Step-by-step explanation:

Let x represent the number of seventh grade students are there.

Eight less than two-fifths of the seventh grade students had a perfect attendance in the first quarter. This means that the number of students that had a perfect attendance in the first quarter is

2x/5 - 8

If 142 students had perfect attendance, it means that

2x/5 - 8 = 142

2x/5 = 142 + 8 = 150

2x = 150 × 5 = 750

x = 750/2

x = 375

answer: 1,380

step-by-step explanation:

1: you turn %15 into a decimal by moving the decimal point two places to the left.

2: and then you multiply .15 by 1,200 , which will get you 180.00

3: from there you will add 180 to 1,200

4: which will get you 1,380

hope it *im kind of slow so idk if my answer is right*