Rosemary's math grades are 90, 98, 96, 94, and 85. What must her sixth grade be so that her average is 92?

89

Step-by-step explanation:

(90+98+96+94+85+89)/6=89

89

Step-by-step explanation:

= 92 Solve for x. Multiply both sides by 6

463+x = 552  Subtract

x=89

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

answer: the answer is 30 miles per hour.

ft/s -> mphmph = ft/s 1.466667mph = 44 divided by 1.466667mph = 30.00000

- r3ktforgood ☕