Question

You are taking a sciencea science course in which there will be four​ tests, each worth 100 points. you have scores of 9191​, 8888​, and 9999 on the first three tests. you must make a total of 360 in order to get an
a. what scores on the last test will give you an​ a

Answer 1

91 + 88 + 99 + x = 360
278 + x = 360
x = 360 - 278
x = 82 <==

Answer 2

Answer: 91 + 88 + 99 + x = 360

278 + x = 360

x = 360 - 278

x = 82 <==

hope this helps you