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Ivan
3 years ago
11

There are 20 students in your class.if 4/5 of them are boys,how many are girls

Mathematics
1 answer:
Citrus2011 [14]3 years ago
7 0

To solve, simply know that 1/5 of 20 is 4. How did you get that? You do 1/5x20. Which is 20/5. The answer is 4. Now multiply 4 by 4. 16. Now the left over 1/5 is 4. So, 4 is how many girls there are. (Make sure to label)

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Solve the parentheses in the equation:

\frac{m}{4}^{2} = \frac{m}{4} \times \frac{m}{4} = \frac{m^{2}}{16}
8 \times \frac{m^{2}}{16} = \frac{8m^{2}}{16} = \frac{m^{2}}{2}

4 \times \frac{m}{4} = \frac{4m}{4} = m

Your equation should now look like this:

\frac{m^{2}}{2} - m

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Which input in this table is incorrect?
Elenna [48]

Answer:

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2 years ago
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Len [333]
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4 years ago
Give the formula for the area of the following shapes. .
mamaluj [8]
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L * W = area where L = length and W = width

The area of a trapezoid can be calculated as follows:

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3 years ago
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Elden [556K]

Answer:

11 yrs

Step-by-step explanation:

Mean = sum of ages/number of ages

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3 years ago
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