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svet-max [94.6K]
2 years ago
14

What is 5% of 400 please add the formula for finding this if you can

Mathematics
1 answer:
Anettt [7]2 years ago
6 0
Percent formula : is/of = %/100

what is 5% of 400
is = x
of = 400
% = 5

now we sub
x/400 = 5/100
this is a proportion, so we cross multiply
(100)(x) = (400)(5)
100x = 2000
x = 2000/100
x = 20......so 5% of 400 is 20
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4 0
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15 Points!! Please help and explain how to solve them!! I really want to understand it
babymother [125]
1) idk I got none of your options
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P=37,535.04
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4)lucas
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8 0
2 years ago
The Smith family was one of the first to come to the U.S. They had 5 children. Assuming that the probability of a child being a
anastassius [24]

Answer:

children

Step-by-step explanation:

5 0
2 years ago
A cyclist rides her bike at a rate of 2 meters per second. What is this rate in kilometers per hour? How many kilometers will th
Oksanka [162]

The speed v is 12 m/s.

 

You need to convert the seconds to hours  and meters to kilometers:

 

3600s = 1 hr

 

If you divide 3600 on both sides you will get

 

1 s = (1/3600) hr

 

 

1000m = 1 km

 

If you divide 1000 on both sides you will also get

 

1 m = (1/1000) km

 

 

v = [(12/1000) km] / [(1/3600) hr]

 

v = [(12*3600)/1000] km/hr

 

v = 216/5  km/hr

 

 

The distance in 4 hours is

 

d = [(216/5) km/hr] * 4hr

 

d = 864.50 km

This is why your answer should be 12 m/s

Hope this helps!! - Queenb369

8 0
2 years ago
How do i solve this? (1/3x-11)^(1/2)=5
photoshop1234 [79]
(\frac{1}{3} x-11)^{ \frac{1}{2} }=5\\ ((\frac{1}{3} x-11)^{ \frac{1}{2} })^{2}=(5)^{2}\\ \frac{1}{3} x-11=25\\ \frac{1}{3} x=36\\x=108
4 0
3 years ago
Read 2 more answers
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