Question

Juliene practiced her dance routine for twice as many

Answer 1

Answer:

  90 minutes

Step-by-step explanation:

Let m represent the number of minutes Juliene practiced on Monday. Then her total for the two days is ...

  m + x/2 = 135 . . . . minutes

  3/2m = 135 . . . . . . collect terms

  m = (2/3)(135) = 90 . . . . minutes

Juliene practiced for 90 minutes on Monday.

Answer 2

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