2 hr and 45 minutes is = to 165min, so do 140 divided by 165, and you will get 0.8484miles per minute, which is D
Answer:
x=3...
Step-by-step explanation:
Given:T is the midpoint of SU.....
To find: x
Proof: ST=TU ( T is the midpoint of SU)
8x+11=12x-1
11+1=12x-8x
12=4x
12/4=x
x=3.
Step-by-step explanation:
V=d/t; where;
V: speed (miles per hour)
d: distance (miles)
t: time (hour)
t=d/V=200/40=5 hours=300 min= 18 000 sec.
We know that 3/5 of the answer is right and 8 are wrong. If we do 5/5-3/5, we get 2/5 which is the amount of problems that are wrong or in other 8 wrong.
3/5=?
2/5= 8 wrong
If we make 2/5 into 1/5 we get 4 wrong answer.
Then we multiply 1/5 and 4 by 5 we get: 5/5 and 20 problems.
So there is 20 problems on the test.
