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3 years ago

a school has 450 learners.the ratio of boys to the number of girls is 7:8 determine the number of boys and girls in the school

Mathematics

1 answer:

Tom [10]3 years ago

6 0

Answer:

Boys : 210

girls: 240

Step-by-step explanation:

7+8=15

450/15=30

boys: 30*7= 210

girls: 240

to make sure......

210+240=450

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Vladimir [108]

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Step-by-step explanation:

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2 years ago

The midpoint of AB is M(4, 1). If the coordinates of A are (2, 8), what are the coordinates of B?

Lisa [10]

Answer:

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Step-by-step explanation:

(2,8) Add 2 to x-axis and subtract 1 from y-axis

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3 years ago

What is the length of the apothem of a regular hexagon with 10-cm sides?

vodka [1.7K]

Answer:

The length of apothem of given hexagon is 8.66 cm

Step-by-step explanation:

Apothem of a polygon is given by:

$apothem = \frac{s}{2\ tan\ (\frac{180}{n})}$

Here

s is length of side

tan is trigonometric function

and n denotes number of sides

Given that the polygon is a hexagon

$s = 10cm\\n = 6$

Putting the values in the formula

$apothem = \frac{10}{2\ tan\ (\frac{180}{6})}\\= \frac{10}{2\ tan\ 30}\\=\frac{10}{2 * 0.5773}\\=\frac{10}{1.1546}\\=8.6610\\Rounding\ off\ to\ nearest\ hundredth\\= 8.66\ cm$

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The length of apothem of given hexagon is 8.66 cm

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3 years ago

The function c=1.50(n-2)+5.50

qwelly [4]

Answer:

c =1.50n +2.50

Step-by-step explanation:

c=1.50(n-2)+5.50

The first step is to distribute the 1.5

c= 1.50*n -1.50*2 + 5.50

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Now we need to combine like terms

c =1.50n +2.50

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3 years ago

If F(x) = log 4 3x, find F -1(x).

jenyasd209 [6]

Answer:

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Step-by-step explanation:

Since x is given (x = -4). Then, all you need to do is log in -4 for each value of x

h(-4) =

−

(

−

)

-3(-4)

h(-4) = -(16) + 12 = -4

4 0

2 years ago

a school has 450 learners.the ratio of boys to the number of girls is 7:8 determine the number of boys and girls in the school​

a school has 450 learners.the ratio of boys to the number of girls is 7:8 determine the number of boys and girls in the school