N=d-2
q=n+d =>q=(d-2)=q=2d-2
25q+5n+10d=525
replace q and n with d
25(2d-2) +5(d-2)+10d=525
50d-50+5d-10+10d=525
65d=585
d=9
n=7
q=16
90 degrees should be right
Answer:
y = -1/2 x + 6
Step-by-step explanation:
2x + 4y = 24
4y = -2x + 24
divide each expression by 4
y = - 1/2x + 6
Answer:
2.5 hours.
Step-by-step explanation:
This is the answer because you will need to add both of their times together then divide it by 2. You divide it by two because there are 2 people.
I don't know
Math needs to answer its own problems
