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Reika [66]
3 years ago
14

Jodie's college class has 50 students, 40 of the students are men. What percent of the class is men?

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
5 0

Answer:

I beleive the answer is 30.

Step-by-step explanation:

We have 50 students. 50 is the half of 100 because 50x2=100

40% is equal to 40/100

So, 40/100 is equal to 20/50 because 100/2=50 and 40/2=20

20/50 (which is equal to 40/100 or 40%) says that 20 men

And if we do the subtraction, it’s 50–20=30are in the class

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Answer:

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Step-by-step explanation:

Step 1:

Write the expression

(m+2)^{2} - m^{2}  - 12

Step 2: Expand (m + 2)^{2}

(m+2)^{2} - m^{2} - 12\\(m+2)(m+2) - m^{2}  - 12\\m^{2} + 2m + 2m + 4 - m^{2}  - 12

Step 3: Collect similar terms

m^{2}  - m^{2}  + 4m + 4 - 12\\4m - 8

Step 4: Factor 4 out of the expression to prove that the expression is a multiple of 4.

Therefore\\4m - 8 = 4(m - 2)\\Hence,\\(m+2)^{2}  - m^{2} -  12 is a multiply of 4 because the expression is equal to 4(m-2)

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2 years ago
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8 0
3 years ago
Evaluate f-+g if f=4 and g=6
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Elza [17]
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