Question

A store has apples on sale for $3.00 for 2 pounds. How many pounds of apples can you buy for $9? If an apple is approximately 5 ounces, how many apples can you buy for $9? Explain your reasoning.

Answer 1

Since 2 pounds is $3 and you have $9, you would do:


`(3)/(2) = (9)/(x)` , x= # of pounds of apples

You do cross multiplication to get:


`3x=18`

x=6

1 lb= 16 oz

So
`6*16=96` to get the number of ounces you can buy for $9.

Then divide 96 by 5, so that is ABOUT 19 APPLES.

Answer 2

we know that

A store has apples on sale for $
`3.00` for
`2` pounds

Part a) How many pounds of apples can you buy for $
`9`?

by using proportion

`(3)/(2)(usd)/(pound) =(9)/(x) (usd)/(pound) \\ \\ 3x=9*2\\ \\ x=(18)/(3) \\ \\ x=6 pounds`

therefore

the answer Part a) is

`6 pounds`

Part b) If an apple is approximately
`5` ounces, how many apples can you buy for $
`9`?

we know that

`1 pound=16 ounces`

step 1

convert ounces to pounds

`1apple=(5)/(16)pounds`

by using proportion

`(1)/((5)/(16))\ (apples)/(pounds) =(x)/(6) (apples)/(pounds)\\ \\ x(5)/(16) =6\\ \\ x=(16*6)/(5) \\ \\ x=19.2 apples`

therefore

the answer part b) is

about
`19 apples`