Equation 1: x + y = 40 ; therefore y = 40 - x
Equation 2: 25x + 15y = 900
Find x first:
25x + 15 (40 - x) = 900
25x + 600 - 15x = 900
10x = 900 - 600
x = 300÷10
x = 30 hours Chris needs to spend for tutoring job
y = 40 - 30
y = 10 hours Chris needs to spend for referencing job
Neither, they ride the same.
First, convert 39/32 to a mixed number. Since it equals 1 7/32, and that's how much beth rode, they both rode the same.
Answer:
The answer is both.
Step-by-step explanation:
It is both because 8^{2} is 64 and 4^{3} is 64.
hope this helps :)
Answer:
The correct ans is..... ( which i believe )
3rd option
Hope this helps...
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Answer:
11) x = 45
12) x = 30
Step-by-step explanation:
11)
3x + x = 180
4x = 180
x = 45
12)
4x = 5x - 30
4x - 5x = -30
-x = -30
x = 30