Question

Please help medals will be given!!!
A grocery store sells pears for $1.99 per pound and apples for $1.49 per pound. A customer purchases 9 pounds of pears and apples for $15.41. How many pounds of apples did the customer buy?

Answer 1

Okay, so you know that a customer buys apples and pears and that the cost (without tax) adds up to 15.41.
You don't know how many pounds of apples he bought. However, you do know how much each costs, and how many pounds of pears he bought. You can use this information and make an equation.
A = pounds of apples
P = pounds of pears
A(1.49) + P(1.99) = 15.41
A(149) + P(199) = 1541
A(149) + 9(199) = 1541
Can you do the rest?

Answer 2

@maria.alison

Answer 3

I think so....

Answer 4

I got 0.0057745850805107

Answer 5

I don't think that's right....

Answer 6

neither do I.
Hm... for some reason this isn't coming out right. Are you sure you typed the question up right?

Answer 7

Yeah, I copy pasted it

Answer 8

The 9 pounds is apples and pears combined, not just pears.

equation for cost like said
A(149) + P(199) = 1541

equation for pounds purchased

A+P=9

now you've got a system of equations. Know how to start?

Answer 9

hm.... Because I got a negative, which is impossible

Answer 10

Oh, ops. I read the question wrong....

Answer 11

Sorry!

Answer 12

What @CalebBeavers said.

Answer 13

so what do I do then

Answer 14

Okay, so you have these two equations.
A(149) + P(199) = 1541
A + P = 9

You will want to use substitution. And since the question is asking for how many pounds of apples, I'd get rid of the pears part.
A + P = 9 --> P = 9 - A

Now, plug in (9 - A) into the first equation.
A(149) + (9 - A)(199) = 1541

Now what do you do?

Answer 15

IDK

Answer 16

You would multiply (9 - A) and 199. Can you do that?

Answer 17

171-9A

Answer 18

Um, no.
199( 9 - A)
199(9) - 199A
What is 199 times 9 ?

Answer 19

1791 sorry i typed it wrong the first time.

Answer 20

Good, now put that into the equation.
149A +199(9-A) = 1541
149A + 1791 - 199A = 1541
What next?

Answer 21

subtract 1791 from both sides?

Answer 22

Sure, yeah. You could do that.
If you did that, what would the equation be?

Answer 23

149A-199A=-250

Answer 24

So the answer is 5....

Answer 25

gave you a medal

Answer 26

peace out

Answer 27

good job!

Answer 28

and thanks

Answer 29

sorry I didn't continue doing the problem with you. computer troubles.

Answer 30

Its fine, that last part was pretty simple

Answer 31

yep. anyway, the answer is 5

Answer 32

k