R = speed in still water
r + c = speed with current
r - c = speed against current
3.5(r + c) = 70
r + c = 20
c = 20 - r
4(r + c) = distance from pier to pier
5(r - c) = distance from pier to pier
4(r + c) = 5(r - c)
4(r + 20 - r) = 5(r - 20 + r)
80 = 10r - 100
180 = 10r
18 = r
The speed in still water is 18 km/hour
Answer:
3.8%
Step-by-step explanation:
90/2358=0.038
Answer:
15
Step-by-step explanation:
its the same as the other angle on there
Answer:
Answer is 0.1
Step-by-step explanation:
You might have rounded to the nearest hundredth instead of tenth, remember tenth is the first decimal, then hundredth, thousands, etc.
15 Bags. If he buys 15 two-pound bags he will have thirty pounds of peanuts, enough to fill thirty six 5/6-pound bags without having any peanuts left over.
