3 years ago

* 30 35 40 45 50 55 60 65 70 75 80 c. Determine the median

Mathematics

1 answer:

tester [92]3 years ago

6 0

Answer:

median is 55

Step-by-step explanation:

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What is the factored form of this expression? 27m^3 +125n^3

ddd [48]

Answer:

$\left(3m+5n\right)\left(9m^2-15mn+25n^2\right)$

Step-by-step explanation:

$27m^3+125n^3=\left(3m\right)^3+\left(5n\right)^3$

Apply sum of cubes formula: $x^3+y^3=\left(x+y\right)\left(x^2-xy+y^2\right)$

$\left(3m\right)^3+\left(5n\right)^3=\left(3m+5n\right)\left(3^2m^2-3m\times 5n+5^2n^2\right)$

$\left(3m+5n\right)\left(9m^2-15mn+25n^2\right)$

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Dafna1 [17]

640,700 :- the four in this number is 40,000
67,040 :- the four in this number is 40

Now, we need to find out how many times greater 40,000 is than 40.

40,000/40 = 1000

Answer: It is 1000 times greater.

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3 years ago

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the tens digit of a 2 digit number is twice the units digit. The sum of the digits is 12. Find the original number

Nataly [62]

<span>2x + x = 12
=> x =12/3 =4
so, original number is 84. </span>

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Solve for x. <br><br> a²x+(a-8)=(a+8)x

Sergio [31]

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