Question

Tims average for the past five tests is 84. To increase his average to 86, what must he make on the sixth test?

Answer 1

oops 96

Answer 2

5x84 + x = 86*6

Answer 3

84 * 5 = 340
(340 + x) / 6 = 86
340 + x = 516
x = 176

Answer 4

:x that loooks wrong... LOL

Answer 5

Wow. Thanks for all the answers guys. Let me read em' and I'll give you medals. ;D

Answer 6

x = 96

Answer 7

84 x 5 = 420 :)

Answer 8

Okay. I'm confused. Everyone has different answers... ._.

Answer 9

ahhh thanks LOL
84 * 5 = 420
(420 + x) / 6 = 86
420+ x = 516
x = 96

Answer 10

its 96

Answer 11

it's 96 sorry

Answer 12

lol. 96. K. Thanks guys.

Answer 13

A sample of legal costs ( in thousands of dollars) for school districts for two recent consecutive years is shown. At a = 0.05 is there a difference in the costs? Suggest a reason for the difference, if one exists.

Year 1 / 108, 36,65, 108, 87, 94, 10, 40

Year 2 / 138, 28, 67, 181, 97, 126, 18, 67

please solve