Question

Sue earns $2.00 for each CD she shells and $2.50 for each DVD she sells. Sue earned $950.00 last week selling CD's and DVD s. Write an equation to represent the number of CD's (C) and DVD s(D) Sue sold last week given that she earned $950.00 If Sue sold 305 CD's last week, how many DVD s did she sell?

Answer 1

she sold 330 DVDs

Answer 2

Give steps, not answers

Answer 3

I believe.

Answer 4

what is the equations

Answer 5

305c x 2 = 620

$950 - 620 = 330

Answer 6

Is that good enough for you?

Answer 7

1. Set up Variables:

305= CDs
y = DVDs
x = Total Amount of CDs and DVDs

2. Set up Equations:

Total Amount Equation: 305 + y = x
Total Cost Equation: 2(305) + 2.5y = 950

3. Solve Systems of Equations

(a) Original Equations:
305 + y = x
2(305) + 2.5y = 950

(b) Isolate y in both equations:
y = x - 305
y = (905 - 610)/2.5

(c) Set y = y and cross multiply:
2.5(x - 305) = 295

(d) Solve for x using order of operations and simplification techniques:
2.5x - 762.50 = 295
2.5x = 1057.5
x = 1057.5/2.5
x = 423

Since x is the total amount of dics sold, then 423 - 305 gives the amount of DVDs sold.

423 - 305 = 118

Therefore 118 DVDs were sold.

Answer 8

O well your just a smarty pants...

Answer 9

But she should use mine.
lol

Answer 10

Yours isn't correct unfortunately

Answer 11

okay. Whatever.
I had it checked. By my teacher.

Answer 12

did u have your checked?

Answer 13

That just means that you and your teacher are incorrect. You should find a new teacher.

Answer 14

............. whatever. Think what you want.

Answer 15

I took Hero's

Answer 16

lol

Answer 17

I doubt there was ever a teacher to begin with.

Answer 18

... Yes. There was.

Answer 19

@Retract please, keep you Sarcastic comments to your self.

Answer 20

It wasn't sarcasm.

Answer 21

@Retract ok what and ever, you can just stop talking to me all around. okay? if you talk to me again I will report you. Have a "good" day