Question

@Astrophysics

Answer 1

do you know how to do this one

Answer 2

yeah
can you at least try to solve?

Answer 3

@Astrophysics

Answer 4

I know everything

Answer 5

i did. astrophysics explains very good for your info

Answer 6

you seem to be learning a lot, but not able to apply what you are taught

Answer 7

x + y is the total number of memberships sold. We are told that a total of 420 memberships were sold, so that gives us one equation. x + y = 420

Answer 8

show your solution

Answer 9

So we have to make 2 equations

Answer 10

For the second equation, we deal with the amount the memberships cost and the total amount of money received. Since x represents the number of $80 memberships sold, the amount of money that was received by selling $80 memberships is 80x. The same is true of the $60 memberships. y number of them were sold at $60 each, so the amount of money received from selling $60 memberships is 60y. We are told the total amount of money received was $31,100. This is the info we need to find the second equation. 80x + 60y = 31100 Now we have two equations that need to be solved simultaneously. The system of equations is: x + y = 420 80x + 60y = 31100

Answer 11

Now we need to solve the system of equations. Let's divide the entire second equation by 10. x + y = 420 8x + 6y = 3110 Now let's multiply the first equation by -6 -6x - 6y = -2520 8x + 6y = 3110 Now we add the equations. 2x = 590 x = 295 Since x represents the number of $80 memberships, the answer is 295

Answer 12

i got the same answer but thanks any ways

Answer 13

I would have given a different problem to solve instead of handing out the answer to his homework

Answer 14

It's the same as before how I showed you to solve the equations for x and y, so lets do it here :)