Answer:
1. 9:3
2. 3:1
Step-by-step explanation:
Hope it really helps you
Answer:
10 its the right answer i hope because it shows
X=21/2
X=10.5
X=10 1/2
There all right
Pls mark me brainliest
Answer:
Sam can do the job in 20 min. So he can do the whole job at the rate of 1 job in 20 minutes.
So he does 1/20 of the job per minute.
.
Rob can do the job in 30 min. His rate is 1/30 of the job per minute.
.
Working together how does it take?
.
1/20*x + 1/30*x = 1 job done
, where x = minutes.
.
Step-by-step explanation:
Answer:
2 hours
Step-by-step explanation:
You can use the relation ...
time = distance / speed
time = (16 mi)/(8 mi/h) = (16/8) h = 2 h
Brian biked for 2 hours yesterday.
