Olivia takes twelve laps on a long track in fifteen minutes. how much time will it take her to skate thirty laps ? a.20.5 minutes b.12 minutes c.37.5 minutes d. 18.5 minutes

C. 37.5 minutes

Step-by-step explanation:

You can set up a proportion to help you figure this out.

12/15=30/x (in this proportion, the number of laps are both on the numerator and the time it takes her is on the denomiator.)

Now, just cross multiply and your equations should be: 12·x=15·30, which equals to 12x=450.

Divide 12 on both sides and x=37.5

C. 37.5 minutes

Step-by-step explanation:

Step 1: Olivia completes 12 laps in 15 minutes.

Find the unit rate. It is nothing time taken to complete 1 lap.

= 15/12

= 1.25 minutes

Step 2: Now find the time taken to complete 30 laps.

Multiply 30 by 1.25

= 30 *1.25

= 37.5 minutes.

Thank you. :)

v = 1/3 a^2h

step-by-step explanation:

if the height is 57.7cm and the height of the slant edge is 18.2cm, then the volume is 1/3 a^2h.

hello, sorry being so rude after all that fighting i found it kind of funny, so as me saying sorry here is an answer!

since the table showed her that   2km = 2000m.

to determine, how many km in 2000m, she would divide by 1000.

= 2000 / 1000 = 2 km.

similarly, for 8000m = 8000 / 1000 = 8 km

cheers to savings

~

your pal papaguy