If you burn 300 calories while exercising for 12 minutes, how many calories will you burn for exercising for 30 mins

750

Step-by-step explanation:

300/12 to show how many calories burnt by minute

which is 25

then multiplying 25 by 30 which is 750

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

6 cm

step-by-step explanation: