9. Divide 15x^7-45x^5/3x^4 10. Divide (3x-2)(x-4)-(x-4)(6-5x)/(4-x)(8x-1)

Mathematics

1 answer:

RUDIKE [14]3 years ago

6 0

Answer:

Answer is in picture

Step-by-step explanation:

Hope it is helpful....

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Need help with a couple of geometry word problems. Giving 100 points, tysm if you help :)

dlinn [17]

Answer:

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Step-by-step explanation:

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6 0

3 years ago

Explain your model for the problem.

serg [7]

Number of apples=12 times numer of bags=12n

neeeds at least 75 apples (1 per student)
12n≥75
divide both sides by 12
n≥6.25
can't buy 0.25 of a bag
7
needs to buy 7 bags

6 0

3 years ago

17 13/18 divided by 2 7/9

erik [133]

let's firstly convert the mixed fractions to improper fractions and then divide.

$\bf \stackrel{mixed}{17\frac{13}{18}}\implies \cfrac{17\cdot 18 +13}{18}\implies \stackrel{improper}{\cfrac{319}{18}}~\hfill \stackrel{mixed}{2\frac{7}{9}}\implies \cfrac{2\cdot 9+7}{9}\implies \stackrel{improper}{\cfrac{25}{9}} \\\\[-0.35em] ~\dotfill$

$\bf \cfrac{319}{18}\div \cfrac{25}{9}\implies \cfrac{319}{\underset{2}{~~\begin{matrix} 18 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}\cdot \cfrac{\stackrel{1}{~~\begin{matrix} 9 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}{25}\implies \cfrac{319}{50}\implies 6\frac{19}{50}$