Answer:
1h 7.5 min.
Step-by-step explanation:
Since it's TWICE as long you have to divide by 2.
You divide by 2 and that equals 1.
Then you divide 15 by 2
2 can't go into 15 so you have to think of what number can 2 go into that is close to 15 can't go over though.
So 14 is the number.
2×7=14
you put the 7 over the five and leave it alone
You put 14 under 15 and subtract that equals 1
put a period after 15 and 7.
add a zero after the period next to 15 and bring it down to one.
that will get you 10
2 goes in to 10 five times.
you put the five next to the period by 7 and put 10 under 10 and subtract and your answer is 7.5
