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evablogger [386]

3 years ago

10

The number of people is inversely proportional to the number of days for a bag of rice to last. If it takes 8 people for a bag o

f rice to last 5 days, how many days would it take 10 people?

1 answer:

defon3 years ago

7 0

Answer:

4

Step-by-step explanation:

the ratio is 8/5, so the inverse would be 5/8, then it went up to 10, so it would be 10/4

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4 0

3 years ago

Please help, I don't understand this. (please no fake answers)

Anni [7]

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5 0

3 years ago

Which expressions are completely factored? Select each correct answer. 30a6−24a2=3a2(10a4−8) 16a5−20a3=4a3(4a2−5) 12a3+8a=4(3a3+

irinina [24]

When factoring an expression, we need to identify the Greatest Common Factor of the expression (GCF). By definition, GCF is the product of prime factors involved with its Lowest Exponent.

We need to divide each term by the GCF to get the expression inside the parenthesis.

$30a^6-24a^2\\ GCF\; is \; 6a^2\\ \\ 30a^6-24a^2=6a^2(\frac{3a^6}{6a^2} -\frac{24a^2}{6a^2} )=6a^2(5a^4-4)\\ ---------------------\\ \\ 16a^5-20a^3\\ GCF \; is \; 4a^3\\ \\ 16a^5-20a^3=4a^3(\frac{16a^5}{4a^3} -\frac{20a^3}{4a^3})=4a^3(4a^2-5) \\ ---------------------\\ \\ 12a^3+8a\\ GCF \; is \; 4a\\ \\ 12a^3+8a=4a(\frac{12a^3}{4a}+\frac{8a}{4a})=4a(3a^2+2)\\ ---------------------\\ 24a^4+18\\GCF \; is \; 6\\\\24a^4+18=6(\frac{24a^4}{6} +\frac{18}{6})=6(4a^4+3) \\ ---------------------$

Conclusion:

From above we can conclude that the below expressions are factored completely

$16a^5-20a^3=4a^3(4a^2-5)\\ \\ 24a^4+18=6(4a^4+3)$

6 0

3 years ago

Read 2 more answers

Anyone know how to do this

blsea [12.9K]

Answer:

A B C D E MIGHT BE UR ANSWER

7 0

3 years ago

Plzzz help I don't really. know this

sergey [27]

The answer is F. what i did was reflect it over the axis then move each point five units right

7 0

3 years ago