Bananas cost $3 a bunch and apples cost $0.50 each. If b represents the number of bunches of bananas and a represents the number of apples, which of the following expressions represents the total cost?

3.50(b + a)
3.50ab
3b + 0.5a
3.50b + a

Question

Bananas cost $3 a bunch and apples cost $0.50 each. If b represents the number of bunches of bananas and a represents the number of apples, which of the following expressions represents the total cost?
 	
	3.50(b + a)
	3.50ab
	3b + 0.5a
	3.50b + a

michaelschmidt · Answer

i say it is the last one

retireed · Answer

Why?

retireed · Answer

If I have 4 bunches of bananas and 6 apples.....   

What is my TOTAL cost?

michaelschmidt · Answer

i mean its the 3 one i had to look at it again

peace420 · Answer

it would be  $13.50 if you had 4 bunches of bananas and 6 apples

retireed · Answer

Wrong it should be $16 not $13.50  I should not try to do math in my head

peace420 · Answer

oh wait no i f***ed up hahah it would be $15

retireed · Answer

YOUR right $15

retireed · Answer

I still can't seem to get it right....

You know how to solve the problem, but you picked the wrong equation originally.  

What equation is the correct one?

peace420 · Answer

I feel like it would be A but still not sure

retireed · Answer

3.50(b + a)     3.5(4 + 6) = 35
3.50ab 
3b + 0.5a      
3.50b + a       3.5(4) + 6 = 20

Remember the answer is 15

peace420 · Answer

B?

rawritskai · Answer

it'd more than likely have to be c since they are two separate objects with different prices