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3 years ago

Simplify 2x^4y^5 * 3x^5y^7z^3

Mathematics

1 answer:

r-ruslan [8.4K]3 years ago

4 0

2x^4y^5(3x^5y^7z^3) = 6x^9 y^12 z³ is your answer

hope this helps

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Digiron [165]

Given:

The average number of daylight hours each month in Springfield in 2015:

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3 years ago

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4 years ago

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bulgar [2K]

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3 years ago

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. Find the variance of the set of numbers 2,3,5,6,8.

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3 years ago

today each cookie costs 0.75 less than the normal price. pight now if you buy 7 of them it will only cost you 2.80 . writw an eq

lbvjy [14]

The normal price of each cookie is $1.15 derived from the equation, c =today price of each cookie + 0.75

Solution:

Given, Today each cookie costs 0.75 less than the normal price.

Right now if you buy 7 of them it will only cost you 2.80

We have to write an equation to determine the normal price of each cookie(c)

And, we are given that, today 7 cookies cost 2.80

Let the cost of one cookie today be “n”

Then we get,

Today 7 cookies ⇒ 2.8

Then, 1 cookie ⇒ n

By criss cross multiplication we get,

$\begin{array}{l}{7 \times n=2.8 \times 1} \\\\ {\rightarrow 7 n=2.8} \\\\ {\rightarrow n=0.4}\end{array}$

Which means that, each cookie costs $0.4 today

Now, we know that,

normal price of each cookie, c = today price of each cookie + $ 0.75

c = 0.4 + 0.75

c= 1.15

Hence, the normal cost of each cookie is $1.15 derived from the equation, c = today price of each cookie + 0.75

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3 years ago