12 x 80 = 960
18 x 86 = 1548
960 + 1548 = 2508
12 + 18 = 30
2508/30 = 83.6
The class average is 83.6
Y=3x -7
you can figure this out or check if it’s correct by using point slope formula,
which is : y-y1=m(x-x1)
y1=-4, x1=1, and m=3 :)
Answer:
The greatest common factor of 4 and 10 is 2, and the Least common multiple of 4 and 10 is 20
Step-by-step explanation:
Answer:
Mode = 7
Median = 6
Mean = 5.2
Range = 7
Step-by-step explanation:
Mode:
The most repeated number is 7 (thrice).
Median:
First, arrange them in order.
1, 2, 3, 4, 5, 7, 7, 7, 8, 8
The two middle numbers are 5 and 7. Find their average.
(5 + 7)/2 = 6
Mean:
(3+7+2+4+7+5+7+1+8+8)/10 = 5.2
Range:
Largest number - smallest number
8 - 1 = 7
Hope this helps!
