Question

Janis and Susan went to a clearance sale at a clothing store. All blouses were selling for the same price and all skirts were selling for the same price. Janis bought 4 blouses and 3 skirts for a total of $68. Susan bought 6 blouses and 3 skirts for a total of $84. What was the cost of each blouse and each skirt?
A. blouse: $12; skirt: $12
B. blouse: $12; skirt: $8
C. blouse $10; skirt $14
D. blouse: $8; skirt $12 <---

@matt101 @Hero @tHe_FiZiCx99

Answer 1

@mathslover @matt101 @Hero @tHe_FiZiCx99 @jim_thompson5910

Answer 2

They don't tell you how much each skirt costs or how much each blouse costs, so we can use variables to stand for those amounts until we figure out what they are.

Answer 3

So, you could use, for example, x to stand for the cost of a skirt and y to stand for the cost of one blouse.

Answer 4

It as pretty easy to figure out... I just wanted to know if I was right for sure. :)
@ParthKohli @zepdrix @Luigi0210 @wio @iambatman @iPwnBunnies

Answer 5

Oh, ok. :)!

Answer 6

Just a moment, please. 8X4 + 3 X12 = 32 + 36 = $68

Answer 7

8x4=32
12x3=36
36+32=68

8x6=48
12x3=36
48+36=84

Answer 8

and 6 X8 + 3X12 = 48 + 36 = $84 So, yes :)

Answer 9

Sorry, I didn't see that you had marked the answer and just wanted to check it. :)

Answer 10

And yeah, I got the same thing.

Answer 11

So ... good :D

Answer 12

KK, I'm just going to see if I can get one more person to agree. Better safe than sorry. ;P @iambatman

Answer 13

@iambatman

Answer 14

You are pretty safe! :D But caution is never a bad thing in math. :)

Answer 15

Have a good evening!

Answer 16

Ivan has nickels and dimes in his pocket. The total number of nickels and dimes is 16. The total value of the coins is $1.25. How many of each coin does he have?
A. 6 nickels and 10 dimes
B. 7 nickels and 9 dimes <-----
C. 8 nickels and 8 dimes
D. 9 nickels and 7 dimes

9 dimes = 90 cents
7 nickels = 35 cents
90+35 cents = 1.25

Answer 17

@iambatman Are both of those right?

Answer 18

7 X .05 + 9 X .10 = .35 + .90 = $1.25 Yes :)

Answer 19

G'night.

Answer 20

@anteater Can you check two more? :)

Answer 21

Sure!

Answer 22

Jeff bought 5 oranges and 5 apples for a total of $7.70. Gene bought 5 oranges and 3 apples for a total of $6.40. What is the cost of each orange and each apple?
A. orange: $0.65; apple: $0.89 <---
B. orange: $0.75; apple: $0.79
C. orange: $0.79; apple: $0.75
D. orange: $0.89; apple: $0.65

Answer 23

5 X .65 + 5 X .89 = 3.25 + 4.45 = $7.70 and

5 X .65 + 3 X .89 = 3.25 + 2.67 = $5.92 ... That didn't work out, so let me double check to make sure!

Answer 24

OOps

Answer 25

I mixed up apples and oranges on the second one

Answer 26

Gio drew an angle on a coordinate grid. One side of the angle had the equation 2x − 3y = 0, and the other side had the equation 2x + 9y = 24. What were the coordinates of the vertex of the angle Gio drew?
A. (2, 3)
B. (2, −3)
C. (3, 2) <----
D. (−3, 2)

Answer 27

3 X .65 + 5 X .89 = $6.40 So, yes :D

Answer 28

What about the next one? :)

Answer 29

2(3) - 3(2) = 0 and 2(3) + 9(2) = 6 + 18 = 24 so yes :D

Answer 30

Now, let me think on that last one just to make sure I didn't overlook something

Answer 31

That is an oddly worded problem, actually! But, I believe they are simply wanting you to find the solution to the system of linear equations, so yes (3,2) would work.

Answer 32

I see what they are saying. It would have been better worded by saying that two lines meet to form an angle. :)

Answer 33

And the vertex of the angle would be the point where those lines intersect, which is (3,2), so yes you are correct. :)

Answer 34

Got any others?

Answer 35

If not that's ok ... anteater will go eat chocolate and knit. :)

Answer 36

Have a fine evening! :D