For the average to be 90,
(99 + 93 + x) / 3 = 90
or 192 + x = 270
or x = 270 - 192 = 78
Jim must score at least 78 in the third test.
Answer:
5x+2
Step-by-step explanation:
I think it is 5x+2
Add 3/7 to the equation for x= 4 3/7 which is your final answer. X is 4 3/7.
Answer:
y = -8
Step-by-step explanation:
All we need to is substitute for x and solve for y.
y = 8 - 2x
y = 8 - 2(8)
y = 8 - 16
y = -8
Best of Luck!
Answer:
m = 2
Step-by-step explanation:
m m+3
----- = ----------
4 10
Using cross products
10m = 4(m+3)
Distribute
10m = 4m+12
Subtract 4m from each side
10m-4m = 4m-4m+12
6m = 12
Divide by 6
6m/6 = 12/6
m = 2
