A student received grades of 75, 90, and 83 on three math tests. What grade does the student need on the fourth test to have an average test score of at least 85?

92

Step-by-step explanation:

85(4) = 75 + 90 + 83 + x

340 = 248 + x

x = 340 - 248

x = 92

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet

nlgqer

step-by-step