Question

PLEASE HELP ITS DUE IN 10 MINS PLEASEE. WHICH IS THE BETER BUY

1) 100 Pencils for 42$ or 80 for 32$?
2) 15 gallons of gas for 52$ or 7 gallons for 24.50?
3) 2 Shirts for 60$ or 10 for 320?


PLEASE HELP MEEEE

Answer 1

1) 80 pencils for $32

2) 15 gallons for $52

3) 2 shirts for $60

Explanation:

1)

At $42 for 100 pencils, each pencil = $42/100 = $0.42
At $32 for 80 pencils, each pencil = $32/80 = $0.40
So better buy is 80 pencils for $32

2)

15 gal of gas for $52 ==> $3.47 per gal

7 gal for 24.50 ==> $3.50
Better buy is 15 gal of gas for $52

3)

2 shirts for $60 ==> $30 per shirt
10 shirts for $320 ==> $32 per shirt

Better buy: 2 shirts for $60