Answer:
39 = r-13
Step-by-step explanation:
Answer:
The solution is b
Step-by-step explanation:
3× -2y-9
4x +3y =22
rob can dig 1/10ft in one hour
Shayna can dig 1/7ft in one our
together they can dig
1/10+1/7
(7+10)/70 in one hour
17/70
in for hours they can dig
17/70×4
68/70
the left work is 2/70
in 60 minutes they can dig 17/70
1/70 work can be done in 60 minutes/17
2/70 work can be done in 60/17×2 minutes
7.088 minutes
for the entire work they take 4hours and 7 minutes
Answer:
it is correct
Step-by-step explanation:
b/c 5a square - 25b square
= 5(a square - 5 b square )
