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gladu [14]
3 years ago
14

60% of 20 Need To Know Asap​

Mathematics
2 answers:
Komok [63]3 years ago
5 0

Answer:12

Step-by-step explanation:

Solution for What is 60 percent of 20:

60 percent * 20 =

(60:100)* 20 =

(60* 20):100 =

1200:100 = 12

Now we have: 60 percent of 20 = 12

Question: What is 60 percent of 20?

Percentage solution with steps:

Step 1: Our output value is 20.

Step 2: We represent the unknown value with $x$.

Step 3: From step 1 above,$20=100\%$.

Step 4: Similarly, $x=60\%$.

Step 5: This results in a pair of simple equations:

$20=100\%(1)$.

$x=60\%(2)$.

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

$\frac{20}{x}=\frac{100\%}{60\%}$

Step 7: Again, the reciprocal of both sides gives

$\frac{x}{20}=\frac{60}{100}$

$\Rightarrow x=12$

Therefore, $60\%$ of $20$ is $12$

Ronch [10]3 years ago
3 0

Answer:

12

Step-by-step explanation:

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A movie theater has a seating capacity of 235. The theater charges $5 for children, $7 for students, and $12 for adults. There a
Annette [7]

Answer:

61 adults, 122 children, and 52 students

Step-by-step explanation:

Let a = amount of adults, c = amount of children, and s = amount of students.

Let's go over what we know:

total amount: 235

twice as many children as adults

children: $5

student: $7

adult: $12

Using this information, we can determine the following:

a = 1/2c

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Since we know a = 1/2c, plug 1/2c in for a. The equations become:

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Now, solve the inequalities by substitution.

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-s + 235 = 1 1/2c

-s = -235 + 1 1/2c

s = 235 - 1 1/2c

Now, plug in the value for s into the other equation.

1706 = 5c + 7(235 - 1 1/2c) + 6c

-5c + 1706 =  7(235 - 1 1/2c) + 6c

-5c = -1706 + 7(235 - 1 1/2c) + 6c

-5c = -1706 + 1645 - 21c/2 + 6c

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s = 235 - 1 1/2(122)

s = 235 - 183

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Finally, plug in the value for c into the value of a.

a = 1/2(122)

a = 61

To check, add up all values to make sure they equal 235.

61 + 52 + 122 = 235.

Therefore, the final answers are 61 adults, 122 children, and 52 students.

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