Answer:
134 kilometers or 83 miles.
Explanation:
First make all the units equivalent, so
60 km/h = 60 km/h or 37.28 m/h
45 m/h = 72.42 km/h or 45 m/h
50 km/h = 50 km/h or 31.07
So in one hour the car has gone 60 km or 37.28 m because they travel at 60km/h, which means they get that far in that amount of time.
In half an hour they get half of 45 miles, because 45 m/h means they get 45 miles in 60 minutes, so in 30 minutes, or half and hour, they are getting half of 45 = 22.5 miles or 36.21 kilometers.
In 45 minutes they are getting 75% of 50 km because 45 minutes is 75% of an hour. So 75% of 50 is 37.5 km or 23.3 miles.
Add this all together and get:
Kilometers:
60 + 36.21 + 37.5 = 133.71 km
Miles:
37.28 + 22.5 + 23.3 = 83.08 m
133.71 km = 83.08 So it checks out.
This is approximately 134 km or 83 miles.
Answer:
50%
Step-by-step explanation:
"64 is what percentage of 128?"
Let the decimal fraction representing that percentage be p.
Then 128p = 64, and p = 0.50. Thus, the percentage is 50%.
The answer is C
Subtract 2x^2+55x+10 - (2x^2 -15x-40)
70x+50
Then put in 240 for x
You get 16850
The answer is C
Answer:
C
Step-by-step explanation:
Using calculator to evaluate
≈ 20.5191 → C
