Answer:
220 Seconds
Step-by-step explanation:
3 Minutes is 180 sec (3*60)
4/6 Minutes are 40 sec (multiply the time value by 60)
(85 + 84 + 78 + x) / 4 = 86
(247 + x) / 4 = 86
247 + x = 86 * 4
247 + x = 344
x = 344 - 247
x = 97 <=== her score was 97
D=number of drinks
p=number of bags of popcorn
75=6d+8p
100.50=12d+10p
multiply first equation by -2 and add to first
-49.50=-6p
divide -6
8.25=p
sub
100.50=12d+10p
100.50=12d+82.50
minus 82.50
18=12d
divide 12
1.50=d
$1.50 per drink
YOU BETTER READ AND LEARN AND NOT JUST USE THIS TO PASS, LEARN
Answer:
Step-by-step explanation:
The Answer is {x| x <-4 or x> 2}
1 (((m^(-1)) (m^5)) / (m^(-2)))^(-3) =1/m^18
