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I really need help for my test.The price of a movie ticket rose from $5 to $8. a. What is the percent increase? b. id the price reverses from $8 to $5, whta is the percent decrease?

Respuesta :

Americ
A)
Increase %= (new # - old #)/old * 100
new= 8
old= 5

Increase %= (8-5)/5 * 100
=3/5 * 100
=0.60 * 100
=60% increase

B)
Decrease %= (old # - new #)/old * 100
new= 5
old= 8

Decrease %= (8-5)/8 * 100
= 3/8 * 100
= 0.375 * 100
= 37.5% decrease


ANSWER: a) 60% increase; b) 37.5% decrease

Hope this helps! :) Good luck on your test!!

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