Ans is Juwan can do 11hrs and Riley can do 31hrs
The cosine of the shown angle is
Step-by-step explanation:
the first question yields a rational number
second question 1/2x2/15 yields an irrational number
I'm assuming the two equations are:
y - 4x = 8
and
y = 2(2x+4)
So the first equation can be rewritten as:
y = 4x + 8
The second equation, we can distribute the 2 to get:
y = 4x + 8
Thus we see that both equations are identical, which means there are an infinite number of solutions.
Answer:
b 2x=8
Step-by-step explanation:
x+y = 6
x-y=2
Add these together
x+y = 6
x-y=2
------------
2x =8