## danijo1814 Group Title Am I remembering how to solve percentage increase right? 11 months ago 11 months ago

1. danijo1814 Group Title

Each year, Terrell buys a plane ticket to visit his grandmother for a week. Last year, he paid $130. This year, he paid$143. What was the percent increase in the cost of his plane ticket? Show your work.

2. danijo1814 Group Title

that is the question this is my answer: amount of change/original amount = percent of change/100 143/130 = x/100 143 x 100 = 14,300 130 x 1 = 130 so we now have the fraction 14,300 over 130 which reduces to 110 over 1 which is actually just 110. So x = 110. Our percentage increase is 110.

3. Euler271 Group Title

amount of change = (new amount - original amount)

4. Psymon Group Title

Well, only a 10% increase. Realize that 100% is the old amount of 130. So if youre going to increaseby 100% + 10%, bit much, eh?

5. Euler271 Group Title

so, yes you've got the right "formula" but amt of change is (143-130) and not 143

6. danijo1814 Group Title

sorry i was afk

7. danijo1814 Group Title

so i solved for the wrong thing?

8. Euler271 Group Title

pasting what you wrote: that is the question this is my answer: amount of change/original amount = percent of change/100 143/130 = x/100 amount of change is (new amount - original amount) = 143-130

9. danijo1814 Group Title

i'm supposed to subtract them or what are you trying to say

10. Euler271 Group Title

$\frac{ 143-130 }{ 130} = \frac{ x }{ 1000 }$

11. Euler271 Group Title

x/100

12. danijo1814 Group Title

13/130 = x/100?

13. Euler271 Group Title

yes

14. danijo1814 Group Title

so i would multiply across and add a 1 under 100, no?

15. danijo1814 Group Title

and that would be 13k over 130

16. danijo1814 Group Title

which reduces to 10 so my answer is 10 percent?

17. danijo1814 Group Title

hey they left

18. kelliegirl33 Group Title

(new value - old value) / old value (143 - 130) / 130 = 13/130 = .1 .1 x 100 = 10% your answer is correct...10% increase

19. danijo1814 Group Title

thank you all for the help i got it now