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VikaD [51]
3 years ago
9

Yesterday, the snow was 2 feet deep in front of Archie’s house. Today, the snow depth dropped to 1.6 feet because the day is so

warm. What is the percent change in the depth of the snow?
The percent change in the depth of snow from yesterday to today is
%.
Mathematics
2 answers:
Leno4ka [110]3 years ago
6 0
The percent would now be .4 %
miss Akunina [59]3 years ago
6 0
2-1.6 is .4
.4/2 is .2 so a 20% change :)
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about 47% of the 15152 samples researchers found were bacteria. what percent of the samples were not bacteria?
timofeeve [1]

47% of them were bacteria, which means 53% of them were not bacteria.

47+53=100 or 100-47=53

I hope this helps :)

3 0
3 years ago
n a jar of coins, the ratio of nickels to dimes is 5:7. If the jar contains 350 dimes, how many nickels are there?
irina1246 [14]

Answer:

250 nickles

Step-by-step explanation:

Nickles and dimes are coins with different currency values. One nickel(N) is equal to 5 cents while one dime(D) is equal to 10 cents. The ratio of nickel:dime is 5:7, to put into the equation it will be:

N/D= 5/7

7N=5D   ---> 1st equation

There are 350 dimes, the equation will be:

D=350   ----> 2nd equation

We can find out the number of nickels by substitute the 2nd equation into the first. The calculation will be

7N=5D

N= 5D/7

N=5(350)/7

N=  250

4 0
3 years ago
1∕2x – 2y + 2z –3z + 3∕4x – y
kogti [31]

Answer:

x-3y-z

Step-by-step explanation:

separate common terms and add them

1/2x+3/4x=1x

-2y-y=-3y

2z-3z=-1z

1x-3y-1z

6 0
3 years ago
87 24/25 as a decimal
adoni [48]
87.96 just divide 24 by 25 and keep the whole number as is
8 0
3 years ago
Read 2 more answers
100 POINTS FOR BRAINLIEST! according to the image, whats the answer? Answer wisely for the full 100
stepan [7]

Answer:

Step-by-step explanation:

1. To find the area of a semicircle the formula is

A=\frac{\pi r^2}{2} \\=\frac{\pi 1^2}{2} \\=6.283m^2

The square

A=a^2=2^2=4m^2\\6.283+4=10.283m^2

2. Triangle

A=\frac{ab}{2} \\=\frac{6*2.5}{2} \\=7.5m^2\\7.5*2=15m^2

Rectangle

A=wl=8*13=104m^2

104-15=89m^2

3.

Semicircle

A=\frac{\pi r^2}{2} \\=\frac{\pi 3^2}{2} \\\\=14.137m^2

Square

A=a^2=6^2=36

36-14.137=21.863m^2

3 0
3 years ago
Read 2 more answers
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