Question

A pencil at a stationery store costs $1, and a pen costs $1.50. Shawn spent $12 at the store. He bought a total of 9 items. Which system of equations can be used to find the number of pencils (x) and pens (y) he bought?

1.5x + y = 12
x = 9y
x + 1.5y = 12
x + y = 9
x + 9y = 12
x = 1.5y
9x + y = 12
x = 1.5y

Answer 1

@hysusonic

Answer 2

so you're supposed to have 1x + 1.50y =12

Answer 3

that's how much he spent and how many items he bought would be x+y=9

Answer 4

so which one looks like that?

Answer 5

A?

Answer 6

u can either use the 1st and 2nd one...or the 3rd and 1st one

Answer 7

no... A is saying that a pencil costs $1.50 when a pencil costs $1

Answer 8

1.5x + y = 12
x = 9y

x + 1.5y = 12
x + y = 9

x + 9y = 12
x = 1.5y

9x + y = 12
x = 1.5y

Answer 9

so which one ?

Answer 10

well look at the formulas...

1x+1.5y=12
x+y=9

Answer 11

which one looks like that?

Answer 12

B?

Answer 13

yup

Answer 14

i quess b...will do

Answer 15

rite

Answer 16

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