Can I get some help with these? Please show you're work!

1 answer:

4 0

Hi there!

There are a few rules for multiplying positive and negative numbers:

-Any negative number times a negative number is a positive.
-Any positive number times a negative number is a negative.
-Any negative number times a positive number is a negative.
-Any positive number times a positive number is a positive.

So, using these rules, let's work through the multiplication:

-19 is a negative, and multiply by +2, would be a negative.
Multiply a negative by +37, and you still have a negative.
Multiply a negative by -0.8, and you will have a positive.
Multiply a positive with -112, and you will get a negative.

So, your answer would be a negative number.

Hope this helps!

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Roger mixed 5/8 cup of red paint with 2/5 cup of yellow paint. How much red paint is needed (using the same ratio) if he wants t

never [62]

Set up the ratio as fractions

(5/8) cup red / (2/5) cup yellow = r amount of red / 1 cup yellow

Then cross multiply the numbers and set up as a equation like this

(5/8) × 1 = (2/5) × r

(5/8) = (2/5)r

Multiply both sides of the equation by (5/2) to get rid of the fraction and solve for r

(5/2) × (5/8) = (2/5)r × (5/2)

25/16 = r

Reduce down to 5/4 or change to a mixed number

1 and 1/4 cups = r

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3 years ago

I need help on this

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3 years ago

Mark as brainly answerereeere asap

aliya0001 [1]

Answer : 84m^2=A
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Hope this helps!

~ Penny

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3 years ago