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3 years ago

Mrs Williams has 30 students in her class 12 of her students are boys what percent of Mrs Williams students are boys

Mathematics

2 answers:

photoshop1234 [79]3 years ago

8 0

30 divided by 12 equals 2.5 so it should equal 2.5%

aleksley [76]3 years ago

4 0

12 out of 30 students are boys, so you can also say 12/30. 12/30 simplified is 4/10, or 40%.

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Elenna [48]

The difference in price per passenger for a group of 16 versus a group of 10 is $26.25

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An equation is an expression that shows the relationship between two or more number and variables.

From the graph:

The cost for a group of 16 friends is $2500, while for a group of 10 friends is $1300.

Cost per passenger for 16 friend = $2500 / 16 = $156.25

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2 years ago

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3 years ago

A student draws a triangle with a perimeter of 36cm. The student says the longest length is 18cm. How do you know the student is

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3 years ago

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Answer:

I = 91.125

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Given that:

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The initial activity to carry out is to determine the limits of the region

since curve z = 0 and $y^2 + z^2 = 81$

∴ $z^2 = 81 - y^2$

$z = \sqrt{81 - y^2}$

Thus, z lies between 0 to $\sqrt{81 - y^2}$

GIven curve x = 0 and y = 9x

$x =\dfrac{y}{9}$

As such,x lies between 0 to $\dfrac{y}{9}$

Given curve x = 0 , $x =\dfrac{y}{9}$ and z = 0, $y^2 + z^2 = 81$

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∴ y lies between 0 and 9

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$I = \int^9_{y=0} \begin {bmatrix} \dfrac{{81x -xy^2} }{2} \end {bmatrix} ^{\dfrac{y}{9}}_{0} \ dy$

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$I = \dfrac{1}{18} \begin {bmatrix} 1640.25 \end {bmatrix}$

I = 91.125

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3 years ago

Find the Factors of 84.

polet [3.4K]

84 is a composite number. 84 = 1 x 84, 2 x 42, 3 x 28, 4 x 21, 6 x 14, or 7 x 12.
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3 years ago

Read 2 more answers