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

Respuesta :

Answer:

[tex]S=45m+15[/tex]

Step-by-step 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

[tex]E=15m+5[/tex] ----> equation A

[tex]S=3E[/tex] ----> equation B

substitute the equation A in the equation B

[tex]S=3(15m+5)[/tex]

[tex]S=45m+15[/tex]

Answer: Its the Second one!

Step-by-step explanation: Ur welcome <3