Answer:
x = 5
y = -1.25
Step-by-step explanation:
3x+4y=10
3x-4y=20
----------------
6x=30
x=5
3(5)-4y=20
15-4y=20
-4y=5
y=-1.25
Answer:
The mean is: 10.666667
The medium is: is between 15
Step-by-step explanation:
X is hours
30x + 97 = 217
30x + 97 - 97 = 217 -97
30x = 120
30x/30 = 120/30
x = 4
They took four hours to fix Ben’s sink.
Answer:
The answer to your question is: no
Step-by-step explanation:
Data
Fastest time = 27.93 s
Second fastest time = 27.97 s
Claire's time = 27.99 s
Just remember that to win a race, the athete that wins must register the lowest time.
Substract Claire's time from the fastest time, if the result is positive, Claire ran slower, if the result is negative Claire ran faster than the previous Girls.
Difference 1 = 27.99 - 27.93 = 0.06 positive, Claire ran slower
Difference 2 = 27.99 - 27.97 = 0.02 positive, Claire ran slower.
