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3 years ago

I need help I need help I need help Simplify. 4a-8a

Mathematics

2 answers:

lara31 [8.8K]3 years ago

5 0

Answer:

-4a

Step-by-step explanation:

a(4-8)= a(-4)= -4a

creativ13 [48]3 years ago

3 0

Answer:

Step-by-step explanation:

subtract 8a from 4a and u get your answer 4a.

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Answer:

112.2

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3 years ago

Janie receives R150 pocket money per month. In the new year his mother increase his pocket money in the ratio 6:5. Calculate Jan

dimaraw [331]

Answer:

Janies' monthly pocket money is $180.

Step-by-step explanation:

Janies' adjusted monthly pocket money:

Initial pocket money = $150

Ratio of new pocket money = 6:5

Let his new pocket money be represented by x,

x:$150 = 6:5

$150 x 6 = x (5)

$900 = 5x

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2 years ago

What is the circumference if 40

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3 years ago

A cone has a diameter of 18 in. and a height of 14 in.

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Cone's volume is $V = \frac{1}{3}Sh$
where S - surface area, h - height
Surface area = $\pi r^2$

r = 18/2=9
h= 14
π = 3.14
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3 years ago

Tell whether x and y show direct variation.Explain your reasoning.If so, find k #3

WINSTONCH [101]

Answer:

x and y do not show direct variation.

Step-by-step explanation:

The formula for direct variation is

y = kx Divide each side by y

k = y/x

k should have the same value for every point except, of course, (0,0)

For the first point,

k = 2/(-1) = -2

For the third point,

k = 2/1 = 2

The values of k are different, so x and y <em>do not</em> show direct variation.

7 0

3 years ago

Read 2 more answers