You said you’d give 30 points but i only see 15 there ☹️
Answer:
Step-by-step explanation:
14 is 46.67% of thirty so you’d need to find out what 46.67% of 45 is which would be 21
Hope this is right and it helped XD
Answer:
B
Step-by-step explanation:
Let the speed of the water current be v.
total travel time = time to go upstream + time to return downstream to the starting point
Hence, 8 = time in hours = 6 / (4-v) + 6 / (4 +v) = 6*8/(16-v^2)
Hence, 16 - v^2 = 6, or v^2 = 10 or v = √10 miles / hour