Question

ANY SMART NERDS

Answer 1

In February, Alec had 1,564 visitors to his website. In March, he had 1,333 visitors to his website. What is the percentage decrease of the number of visitors to Alec's website from February to March? If necessary, round to the nearest tenth of a percent.

17.3%
85.2%
14.8%
16.5%

Answer 2

14.8%

Answer 3

how

Answer 4

\(\% ~change = \dfrac{new~number - old~number}{old~number} \times 100\)

Answer 5

In your case, the new number is 1,333. The old number is 1,564.

Answer 6

@NathanKinser
Actually, it is not at all what you wrote above.

Answer 7

so what do u think the answer is

Answer 8

17.3%

Answer 9

how did u get that

Answer 10

i divided both of the numbers to get it

Answer 11

so the answer is 17.33%

Answer 12

yup

Answer 13

no it was not it said it was wrong

Answer 14

it was 14.8%

Answer 15

really??

Answer 16

try this one

Answer 17

Jane moved from a house with 76 square feet of closet space to an apartment with 43.32 square feet of closet space. What is the percentage decrease of Jane's closet space?

34%
43%
75%
57%

Answer 18

@NathanKinser u were right on the last one

Answer 19

thanks

Answer 20

do u know this one

Jane moved from a house with 76 square feet of closet space to an apartment with 43.32 square feet of closet space. What is the percentage decrease of Jane's closet space?

34%
43%
75%
57%

Answer 21

it was correct i put it in and it was right can u help with the next one

Answer 22

would the second question be 57%???

Answer 23

i am the one taking the text and it said it was 14.8%

Answer 24

cause i divided it and got 56.8 and if you round it you get 57%

Answer 25

what do think about the second one @NathanKinser

Answer 26

43%

Answer 27

correct

Answer 28

The price of a car has been reduced from $19,500 to $13,455. What is the percentage decrease of the price of the car?

31%
3.1%
60.45%
69%

Answer 29

31%

Answer 30

i like math so its easy for me

Answer 31

31% or3.1%

Answer 32

A

Answer 33

yep

Answer 34

Seraphina is driving two hours to visit her family. For the first hour, she traveled at a speed of 55 miles per hour. Then, in the second hour, she traveled at a speed of 70 miles per hour. What is the percentage increase of Seraphina's speed? If necessary, round to the nearest tenth of a percent.

21.4%
78.6%
27.3%
72.7%

Answer 35

27.3

Answer 36

i believe

Answer 37

yep

Last month, when Joe took his puppy to the veterinarian, the puppy weighed 4.9 pounds. This month, the puppy weighed 6.37 pounds. What is the percentage increase of the weight of the puppy?

23%
77%
1%
30%

Answer 38

The formula for percent change is:

\(percent~change = \dfrac{new ~amount - old~amount}{old~amount} \times 100 \)

First problem:

\(percent~change = \dfrac{1333 - 1564}{1564} \times 100 = -14.8\%\)

Second problem:

\(percent~change = \dfrac{43.32 - 76}{76} \times 100 = -43\% \)

Third problem:

\(percent~change = \dfrac{70 - 55}{70} \times 100 = 27.3\% \)

A negative percent change means a decrease, and a positive percent change means an increase.

Answer 39

u were wrong dude just get over it

Answer 40

It's correct now.

Answer 41

30%

Answer 42

thank u nathan

Martha estimated there were 85 marbles in a jar for a contest. The actual number of marbles in the jar was 107. What was the percent error of Martha's estimation?

25.88%
79.44%
22%
20.56%

Answer 43

A

Answer 44

wait

Answer 45

yeah i thinks its A

Answer 46

D

Answer 47

You are comparing the estimate, 85, with the real number which is 107, so you must divide the difference (107 - 85 = 22) by 107, not by 85.

Answer 48

it was d

Answer 49

In February, Alec had 1,571 visitors to his website. In March, he had 1,363 visitors to his website. What is the percentage decrease of the number of visitors to Alec's website from February to March? If necessary, round to the nearest tenth of a percent.

13.2%
15%
15.3%
86.8%

Answer 50

ill let you guys answer some ill be back soon i gotta do some school myself

Answer 51

@Loveheart
You have asked a bunch of similar questions. You have answers and the way the answers were arrived at above. How about trying it on your own?

Answer 52

In February, Alec had 1,571 visitors to his website. In March, he had 1,363 visitors to his website. What is the percentage decrease of the number of visitors to Alec's website from February to March? If necessary, round to the nearest tenth of a percent.

13.2%
15%
15.3%
86.8%

Answer 53

Start with: new number - old number.
What is 1363 - 1571 = ?

Answer 54

-208

Answer 55

i am finding some really smart people!!! seriously you guys are smart :)

Answer 56

Good.
Now divide the difference by the old number.
What is -208/1571 = ?

Answer 57

-0.13239974538

Answer 58

Great.
Now just multiply that number by 100.

Answer 59

-0.00132399745

Answer 60

Since the answer is negative, that shows it's a percent decrease.

Answer 61

You divided by 100.
You need to multuiply 0.132399 by 100.

Answer 62

13.2???

Answer 63

Correct.
-0.132997 * 100 = -13.23997
Answer: 13.2 percent decrease

Answer 64

its seems so hard until you do it like that

Answer 65

Do it one step at a time.
You just need to figure out which number is the "new number" and which number is the "old number". Then use the formula.