Zach and austin each bought shoes that originally cost $60.

the store where zach bought his shoes from had them on sale for 35% less than the original price.
the store where austin bought his shoes from had them on sale for 20% less than the original price .
enter how much more money, in dollars, austin paid for his shoes than zach paid for his.

Austin paid 9 bucks more

Step-by-step explanation:

Zach : original cost is 60 buckson sale for 35% offmeans he paid (100% - 35%) = 65%.

65% of 60 = 0.65(60) =  39 <=== what Zach paid

Austin : original price 60 bucks...on sale for 20% off...so he paid 80%

80% of 60 = 0.8(60) = $ 48 <=== what Austin paid

Austin paid (48 - 39) = $ 9 more then Zach

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !