-3+7=4 should be your answer
Answer:
17/15
Step-by-step explanation:
6/5 * 17/18
1/5 * 17/3
17/15
It's the radius, because it's only halfway through (and diameter would be all the way).
Answer:
Answer is 1/2
Step-by-step explanation:
Answer:
10 hours.
Step-by-step explanation:
Two bicyclists are 200 miles apart when they start racing towards one another.
Their speeds are 12 mph and 6 mph respectively.
Distance = speed × time
Let the time taken by bicyclists = t
We have to calculate the time when they 20 miles apart this means they have covered the distance of 200 - 20 = 180 miles
t(12mph) + t(6mph) = 180
18t = 180
t = 
t = 10 hours
It will take 10 hours to both the bicyclists before they are 20 miles apart.