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3 years ago

What is (-2)(-5)? Dhdjfhfhhdhd

Mathematics

1 answer:

lbvjy [14]3 years ago

6 0

Answer:

$( - 2)( - 5) \\ - 2 \times - 5 \\ = - 10$

<h2>please mark me brainliest</h2>

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What is the G.C.F of 10x-20y ?

Mice21 [21]

Answer:

10(x-2y)

Step-by-step explanation:

The factors of 10 are 1,2,5,10.

The factors of 20 are 1,2,4,5,10,20.

There’s for the grads test common factor is 10. Hope it helped! Good luck!

8 0

3 years ago

Which is greater? 1.646 or 1.43?

Alex73 [517]

Answer:

1.646 > 1.43

hope this helped

> = greater

Step-by-step explanation:

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3 years ago

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Express in an inequality that -8.5C is warmer than -15C

ExtremeBDS [4]

Hello!

-8.5C > -150

Good luck!
M.

6 0

3 years ago

The sum of three consecutive even integers is 144.

WARRIOR [948]

If you divide 144 by three you get 48. Then when you subtract one from 48 you get 47. When you add one to 48 you get 49. So the three consecutive numbers are 47, 48, 49

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3 years ago

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A doctor prescribes a 300-mg antibiotic tablet to be taken every eight hours. Just before each tablet is taken, 20% of the drug

professor190 [17]

Answer:

So after the second tablet there is 360-mg of drug in the body.

So after the third tablet there is 372-mg of drug in the body.

Step-by-step explanation:

We know that a doctor prescribes a 300-mg antibiotic tablet to be taken every eight hours. Just before each tablet is taken, 20% of the drug remains in the body.

We know that 20%=0.2.

We conclude that after the first pill, 300mg of the drug is in the body.

We have the following formula, to calculate how much mg of the drug is in the body after the second tablet:

$300+20\%\cdot 300=300+0.2\cdot 300=300+60=360$

So after the second tablet there is 360-mg of drug in the body.

We have the following formula, to calculate how much mg of the drug is in the body after the third tablet:

$300+20\%\cdot 360=300+0.2\cdot 360=300+72=372$

So after the third tablet there is 372-mg of drug in the body.

3 0

4 years ago