what would you need on a fourth test to have a 93% test average for the class if your first three were80 88 95

Question

what would you need on your fourth test to have a 93% test average for the class if your first three scores were 80, 88,and 95?

Answer 1

you would need 109..

working:

you need totally 93 X 4 = 372
you have already got 80 + 88 + 95 = 263
so the remaining is 109

i like your determination to do well.. it's ok even if you did not succeed.. better luck next time..

Answer 2

Four tests average out to a 93 test average
=( 80 + 88 + 95 + x) / 4 = 93

4 * 93 = 80 + 88 + 95 + x
372 = 263 + x
x = 109

Approach your teacher and ask what you can do at this point to get an "A" in the class.

Answer 3

You will have a 93% average score on 4 tests if your tests add up to 372 (since 372 is 93% of 400 and 400 is the most possible).
Your current total is 80+88+95 =263
To reach 372 you would need 109 on the last test. 263+109 = 372
So it isn't possible to obtain a 93% average.

Answer 4

your first test = 80
your second = 88
your third = 95
your fourth = x

average = (80 + 88 + 95 + x) / 4 = (263 + x) / 4 = 93
x = (93 x 4) - 263 = 109

i have no idea how you're gonna get 109/100 for your test. lol.

the maximum average you can get is if you scored full marks for your 4th test:
(80 + 88 + 95 + 100)/4 = 363/4 = 90.75%

Answer 5

You would need to get 109.

80 + 88 + 95 +109 = 372

372 divided by 4 is 93

Answer 6

93 = (80 + 88 + 95 + x) / 4
372 = 263 + x
109 = x

Hope you can earn extra credit, pal, because you need a 109% on that last test.

Answer 7

80+85+95+100+EXTRA CREDIT/4=.93

Answer 8

(.80+.88+.95+x)/4 = .93

Solve for x

Answer 9

((80 + 88 + 95 + x)/4) = 93
263 + x = 372
x = 109

so it isn't possible unless you have extra credit

Answer 10

You could not get a 93%. The 80% lowers the average too far, the most you could get would be 90.7%