Question

In January, the depth of a lake was 833 feet. In August, the depth of the lake was 499.8 feet. What is the percentage decrease of the depth of the lake from January to August?
40%
48%
60%
67%

Answer 1

@ms.hi

Answer 2

@AlexandervonHumboldt2

Answer 3

@dtuniyants

Answer 4

are you sure?

Answer 5

okay

Answer 6

use formula: new/old*100%

Answer 7

what is that

Answer 8

499.8/833*100%

Answer 9

you will find what persantage is 499.8 out of 833

Answer 10

so the answer is 60

Answer 11

let me calculate.

Answer 12

am I correct 60

Answer 13

499.8 is 60% from 833. so the decrease is 40%

Answer 14

i was right in the beggining

Answer 15

Last month, when Joe took his puppy to the veterinarian, the puppy weighed 4.7 pounds. This month, the puppy weighed 7.05 pounds. What is the percentage increase of the weight of the puppy?

Answer 16

50%
33%
2%
67%

Answer 17

33

Answer 18

find what percentage is 7.05 from 4.7.
7.05/4.7*100%=150%

Answer 19

is the answer 50

Answer 20

yes or no

Answer 21

yes.

Answer 22

@dtuniyants can you help me?

Answer 23

since there is 50%, the answer is easily checked.
4.7*50%=2.35
4.7+2.35=7.05 ok

Answer 24

what is your question @ms.hi

Answer 25

The value of a professional basketball player's autograph rose 20% in the last year. It is now worth $276.00. What was it worth a year ago?
$210.00
$220.00
$240.00
$230.00

Answer 26

oel used candle molds, as shown, to make candles that were perfect cylinders and spheres
What is the approximate difference in the amount of wax needed to make a candle from each of these molds? (Use π = 3.14.):

Answer 27

4.19
10.4
12.56
20.93

Answer 28

@ms.hi there are too lot of questions for me. I'll ask @AlexandervonHumboldt2 to answer you

Answer 29

i dont know

Answer 30

What is the length of the hypotenuse of a right triangle if each of the two legs is 6 units?

Answer 31

@Samara8954 use again this formula: new/old*100%=20%

Answer 32

hypotenuse^2=(leg1)^2+(leg2)^2

Answer 33

if two legs are 6 units. then hypotenuse is sqrt(6^2+6^2)=sqrt(36+36)=sqrt72 simplify this

Answer 34

72 sqrt

Answer 35

no i meant 12 sqrt

Answer 36

sqrt72=sqrt(36*2)=6*sqrt2

Answer 37

so its 6