Answer:
10 km/hr
Step-by-step explanation:
5 hrs = 40 more with 2 km/hr current
2 hrs= less 40 no current
40-2x5=30
30 without current for three hours
30/3=10 km/hr no current
***
CHECK
10x2=20
10x5=50+2x5=60
***
Hope this helps, and please mark me brainliest! thanks! >//-//<
Number 7 I believe the answer is 74.
There are 5 groups of 3 in the number 15, so 15/3=5
Answer:
1740 miles
Step-by-step explanation:
They drive the way twice; once they go there and then they go home. Therefore, 870 times 2 equals 1740.
