Question

Sue buys a certain brand of cereal that costs $12 per box. Sue changes to a super-saving brand of the same size. The equation shows the price, y, as a function of the number of boxes, x, for the new brand.

y = 8x

Part A: How many more dollars is the price of a box of Sue's original brand of cereal than the price of a box of the super-saving brand? Show your work.

Part B: How much money does Sue save each month with the change in cereal brand if she buys 4 cereal boxes each month? Show your work.

Answer 1

Do i multiply or subtract?

Answer 2

what is the price of 1 box of the super-saving cereal?

Answer 3

8

Answer 4

right 8 dollars
So how many more dollars was one box of the original brand?

Answer 5

4

Answer 6

correct
12 - 8 = 4

Answer 7

oh ok

Answer 8

So any ideas about Part B?

Answer 9

umm not realy

Answer 10

How much does she spend each month buying new cereal and how much buying the original?

Answer 11

8

Answer 12

8? ONE box costs $8

Answer 13

- how many does you buy each month?

Answer 14

- it says in the question...

Answer 15

sorry

Answer 16

oh 32

Answer 17

4 boxes in a month so cost = 8*4 = $32

Now work out the cost for the original cereal ( 4 at $12) and subtract $32 dollars from this and you have the answer

Answer 18

ok

Answer 19

OK? can you do that?

Answer 20

i did it

Answer 21

its 98

Answer 22

???? No
what is the cost of 4 boxes of the original cereal?

Answer 23

oh 128

Answer 24

but the difference is 98

Answer 25

cost = number of boxes * price of each box = 4 * 12 = ?

Answer 26

128

Answer 27

no
4 * 12 = 4*10 + 4 * 2

Answer 28

oh crap its 48

Answer 29

right!!

so savings = 48 - 32

Answer 30

idk why i thought it was 128

Answer 31

which is 16

Answer 32

nor me!! lol!

Answer 33

lol

Answer 34

16 is the answer
Dont forget to show all your work.

Answer 35

i did

Answer 36

good

Answer 37

thx i have another one, but im just gonna post it instead of putting it here