Question

CHALLENGE btw it hard

Answer 1

The percent decrease is 20%

Explanation:

First week : 1060 people

Second week: 1060 - 110 = 950 people

Third week : 950 + 145 = 1095 people

Fourth week: 1095 - 247 = 848 people

Make 1060 the whole (100%), we need to figure out 848 percent

848 x

1060 100

848 x 100 = 84800

84800 divided by 1060 = 20

From 1060 people to 848 people is a 20% decrease

Answer 2

25%

Explanation:

Lets find how many people were at the pool at the 4th week.

1060 - 110 + 145 - 247 =

848

Use percent error formula,

`(v_a-v_e )/(v_e)`

Actual - Estimate over Estimate

Actual (1st week): 1060

Estimate (4th week): 848

Plug into formula.

`(1060-848)/(848)`

Simplify.

`(212)/(848)`

Divide.

0.25

Multiply by 100 and write with a percentage sign.

0.25*100 = 25

25%