Question

Brock exercises every day. The function E = 15m + 5 represents the number of sit-ups he can do in m minutes. After drinking a new sports drink to stay hydrated, he finds that he can increase the number of sit-ups per minute by a factor of 3, represented by the function S = 3E. Which function represents the number of sit-ups he can do after drinking the sports drink?

Answer:
S = 45m + 15

Answer 1

Answer: Its the Second one!

Step-by-step explanation: Ur welcome <3

Answer 2

`S=45m+15`

Explanation:

we have

E------>the number of sit-ups

m----> the time in minutes

S----> the number of sit-ups after drinking the sports drink

`E=15m+5` ----> equation A

`S=3E` ----> equation B

substitute the equation A in the equation B

`S=3(15m+5)`

`S=45m+15`