Question

I need help on #1, to solve I did 0.2 x 1600= 320 then I added 320 + 1600= 1920 and the correct answer is 2000. What did I do wrong?

Answer 1

Answer: the answer is 2000

Explanation:

so basically out of 100%, 20% of them were affect so basically you do

1600/0.8=2000

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Answer 2

p = 2000

Explanation:

20% suffer from agoraphobia. That means 100-20= 80

80% do not suffer from agoraphobia

1600 people do not suffer from agoraphobia

Let p be the number of people

p * 80% = 1600

Change to decimal form

p * .80 = 1600

Divide each side by .8

.80p/.80 = 1600/.80

p = 2000