Kay, question is:
You hope to get an 85 average bowling. You bowl a 92, 81, 78, and 80.
What do you need to bowl on your next string to reach your goal?
[ I think it's 98.. but I'm not sure. ]
Help much people? Please.
2006-09-01 11:36:27 · 8 answers · asked by hannahbabesx3 1 in Education & Reference ➔ Homework Help
Thank you guys! I get it now.
2006-09-01 11:48:35 · update #1
Let's see - basically, you're saying "I need 5 numbers that average out to 85. The first 4 are 92,81,78, and 80."
92+81+78+80 = 331
Average = total / count ; in this case, count is 5 games.
So, what divided by 5 equals 85?
85 x 5 = 425
I need a score that totals 425, and I've bowled 331 and I have 1 game left.
425 - 331 = 94 by my calculator. I gotta bowl 94 this game. Yikes!
Watch out for the gutter balls!
2006-09-01 11:44:44 · answer #1 · answered by Anon 7 · 0⤊ 0⤋
Solve for x: 85*5-(92+81+78+80)=x
x=94
2006-09-01 18:42:14 · answer #2 · answered by odu83 7 · 0⤊ 0⤋
You need to write is as:
(92 + 81 + 78 + 80 + x) / 5 = 85
You divide it by 5 because you want the average and you have 4 scores right noow and after your next one you will have 5. The x is the score you need to have to have a average of 85. Solve for x.
(331 + x) / 5 = 85
331 + x = 425
x = 94
2006-09-01 18:37:40 · answer #3 · answered by Elim 5 · 1⤊ 0⤋
the answer is 94.
92+81+78+80=331 ave score is 82.75
92+81+78+80+95=429/5=85.8
92+81+78+80+94=425/5=85.0 =) good luck!!
2006-09-01 18:45:41 · answer #4 · answered by jv637 5 · 0⤊ 0⤋
(92+81+78+80+94)/5=85...that was soo easy
2006-09-01 18:44:34 · answer #5 · answered by winnie m 2 · 0⤊ 0⤋
add 92+81+78+80 together and subtract what you get from 85 times 5.
and then you have your answer
(P.S. it's not 98)
2006-09-01 18:43:49 · answer #6 · answered by ♪Krys♫ 3 · 0⤊ 0⤋
Try:
85=(92+81+78+80+X)/5
85x5=(92+81+78+80+X)
425=331+x
X=425-331
X=94
That is your answer
2006-09-01 18:41:33 · answer #7 · answered by Carlos A 2 · 0⤊ 0⤋
MATH SUX!!
2006-09-01 18:42:08 · answer #8 · answered by Anonymous · 0⤊ 1⤋