Jay burns 252 calories in 45 minutes
Step-by-step explanation:
This is proportions so put 20/45 represents minutes and 112/x represents calories. Jay runs 20 minutes and burns 112 calories. so if Jay runs for 45 minutes so he burns 252. so x=252
20/45 112/x multiply 45 and 112 and then divide 20 and you get an answer of 252. To double check if you got the right answer you multiply 20 and 252 and you get the same answer as 45 x 112
I know this because I am learning about proportions so it is simple to me to answer.
