3 years ago

When graphing inequalities, and you divide y by a negative number, do you switch the symbol?

Mathematics

1 answer:

xz_007 [3.2K]3 years ago

4 0

Yes you need to! And you need to be careful not to forgot that when doing your calculations!!

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At a frisbee throwing competition one contestant threw a frisbee 113.47 meters

jekas [21]

I don’t understand the question

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3 years ago

What is 25% of 400 5% of 20

stiks02 [169]

Hello there!

What is 25% of 400?

$\frac{25*400}{100}$

= $\frac{10,000}{100}$

= 100

Thus,

25% of 400 is 100

What is 5% of 20?

Well, we just need to follow the previous steps.

$\frac{5*20}{100}$

= $\frac{100}{100} = 1$

Thus,

5% of 20 is 1

I hope this answer helps. Let me know if you have additional questions about the answer. As always, it is my pleasure helping student like you.

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3 years ago

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kherson [118]

The expression simplified is -w^3-2w+3

I hope this helped

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3 years ago

Please help me with number 9, also what method you used to get the equation

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3 0

3 years ago

A water tank is 3/4 full.

guapka [62]

x/.75=x-56/0.4

0.4x=.75x-42

-0.35x=-42

x=120

I set up a proportion in which x=the tank when it is 3/4 full. When the tank is 3/4 full, solving the proportion tells us the x=120 litres. 120/3=40, and 120+40 is 160, showing that a tank completely full would indeed hold 160 litres.

Hope this helps!

3 0

2 years ago