Bob and Susie wash cars for extra money over the summer. Bob's income is determined by f(x) = 6x + 13, where x is the number of hours. Susie's income is g(x) = 4x + 18. If Bob and Susie were to combine their efforts, their income would be h(x) = f(x) + g(x). Assume Bob works 3 hours. Create the function h(x), and indicate if Bob will make more money working alone or by teaming with Susie.

h(x) = 2x + 5, work alone

h(x) = 2x + 5, team with Susie

h(x) = 10x + 31, team with Susie

h(x) = 10x + 31, work alone

Question

Bob and Susie wash cars for extra money over the summer. Bob's income is determined by f(x) = 6x + 13, where x is the number of hours. Susie's income is g(x) = 4x + 18. If Bob and Susie were to combine their efforts, their income would be h(x) = f(x) + g(x). Assume Bob works 3 hours. Create the function h(x), and indicate if Bob will make more money working alone or by teaming with Susie.

 h(x) = 2x + 5, work alone

 h(x) = 2x + 5, team with Susie

 h(x) = 10x + 31, team with Susie

 h(x) = 10x + 31, work alone

francesca_marie · Answer

h(x) = 2x + 5, work alone 

 h(x) = 2x + 5, team with Susie 

 h(x) = 10x + 31, team with Susie 

 h(x) = 10x + 31, work alone

mikey · Answer

@3mar

francesca_marie · Answer

._. kay den

mikey · Answer

what u mean kay den @Francesca_Marie

mikey · Answer

@Awolflover1

mikey · Answer

@AloneS

francesca_marie · Answer

I helped you and you tagged someone else xD

mikey · Answer

u just rewrote the choices and I was tagging someone that I knew helped me before, sorry

francesca_marie · Answer

oh i meant to put h(x) = 10x + 31, team with Susie was correct xD

3mar · Answer

Really I am confused about it. Can we think together?

mikey · Answer

I was extremely confused as well

francesca_marie · Answer

Yeah

francesca_marie · Answer

well x = 3 and f(x) is Bob's income function

francesca_marie · Answer

so f(3) represents how much money he earns alone

3mar · Answer

great
f(3)=31
then?

francesca_marie · Answer

sorry my computer turned off lol

3mar · Answer

combined:
h(x)=f(x)+g(x)
      =6x+13+4x+18
      =10x+31

for h(3)=30+31=61

So with team is better
the third choice as Francesca_Marie said.
He was right!

francesca_marie · Answer

She* xD

3mar · Answer

Sorry, names do not tell me who are they!!
Nice work, Maria