Answer:
40 mph
Step-by-step explanation:
40 mins to bike usually, which means he bikes 10 miles. He needs to bike at a minimum of 10 miles in 15 mins, which translates to 40 miles in an hour.
P.S. He is going to surely be late.
Answer:
Here,

substituting the value of 4y in eqn i fron eqn ii
so eqn i becomes

So

Thus,

...hope this helps:)
Answer:
1/72=x (part a)
1/70=x (bart b)
Step-by-step explanation:
Divide 1 by 72 for part a, and divide 1 by 70 for part b.
The answer is C 16:20 because both numbers 4&5 are multiplied by four
Answer: 58/9
Step-by-step explanation: