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vladimir1956 [14]
3 years ago
5

What percent of 60 is 12? Show your work.

Mathematics
2 answers:
Semmy [17]3 years ago
7 0
Percent formula : is/of = %/100
is = 12
of = 60
% = x
now we sub

12/60 = x/100
cross multiply
(60)(x) = (12)(100)
60x = 1200
x = 1200/60
x = 20

check..
0.20(60) = 12
12 = 12 (correct)

so 20% of 60 is 12
gulaghasi [49]3 years ago
3 0
Well, know that a percentage is obtained by multiplying a quantity (60) by a percentage (x). So we can set up an equation that states, <span>60x=12</span> Just divide by 60 and convert into percentage form.<span><span>x=12/60=.2=20percent</span></span>
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The sum of two numbers is 20 and the difference is 12. What are the numbers?
svetlana [45]

Answer:

1) A system of two linear equations to represent this problem

x+y=20 and x-y=12

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Step-by-step explanation:

Let x and y be the two numbers

Given that the sum of the two numbers is 20

That is x+y=20\hfill (1)

and the difference is 12

That is x-y=12\hfill (2)

1) A system of two linear equations to represent this problem

x+y=20\hfill (1)

x-y=12\hfill (2)

2). Noe Solve the system to find the 2 numbers:

Adding the equations (1) and (2) we get

x+y=20

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_____________

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3 years ago
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