Ali has scored 88, 94, 82, and 83 on his previous four tests. what score does he need on his next test so that his average (mean) is 86?

83

Step-by-step explanation:

(94 + 88 + 82 + 83 + x) ÷ 5 = 86

(347 + x) ÷ 5 = 86

347 + x = 86 × 5 ➡ 347 + x = 430

x = 430 - 347

true !

step-by-step explanation:

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|