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Please Help me with these!

Please Help me with these!-example-1

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Answer:

30% and $30

Explanation:

Well 240-168 is 72

72 is 30 percent of 240 because

240* x/100 = 72

24000x=7200

x=.3

.3 is percentage is 30%

We can check by doing

240*.3= 72

there is a 30% decrease

Next question

If the total price of something is 31.20 with a 4% tax we do

x * .04 + x = 31.20

because 4% added to the price of that object is 3.20

1.04x = 31.20

x= 30

we can check by doing

30*.04+ 30= 31.2

User Thejus Krishna
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