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3 years ago

Can someone help me and please explain !!!!

Mathematics

1 answer:

Phoenix [80]3 years ago

8 0

So this is how i learned it. you have to remember a=part p=percent and w = whole. so you set it up like this a=p*w so "a" in this case is 48 and "w" is 120 (two hours) so now you substitute 48=p*120, now you have to divide each side by 120. 48/120=0.4 so 0.4=p BUT now you have to multiply by 100 for the percent

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PLEASE HELP ASAP

schepotkina [342]

Answer:

Step-by-step explanation:

-12 / 3 x (-8 + (-4)*2 -6) + 2

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-12 / 3 x (2) + 2

-4 x (2) + 2

-8 + 2

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4 0

3 years ago

Yes we did learn 1 and 2 step equation this should be a piece of cake

ANTONII [103]

What do you need help with?

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3 years ago

Scientific notation of 864,000,000,000,000

sineoko [7]

Answer:

8.64x10 to the power of 14

Step-by-step explanation:

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3 years ago

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Which expression can be used to determine the length of segment ZY? See image.

mixer [17]

Answer:

$\sqrt{8^{2} + 3^{2} }$

Step-by-step explanation:

We see that this is a rectangle triangle, and that the ZY side is the hypotenuse.

It's length is then square root of the sum of the squares of the other sides:

$hyp = \sqrt{a^{2} + b^{2} }$

So, in this case:

$ZY = \sqrt{8^{2} + 3^{2} }$

The 8 and 3 numbers are easy to get from the graphic... and the order doesn't matter (8² + 3² = 3² + 8²).

That's an easy rule to remember.

I hope it helps.

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3 years ago

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What is elimination?

Karo-lina-s [1.5K]

Where you multiply one of the equations to try to get rid of one of the variables (x or y) like for this on the bottom equation if you wanted to get rid of y you would multiply by 5 and -5+5=0 so it would get rid of the y's

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3 years ago