2 years ago

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Mathematics

1 answer:

loris [4]2 years ago

4 0

The awnsers is D (.

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The sum of a number and its reciprocal is 41/20. Find the number. smaller value larger value

Natali [406]

Step-by-step explanation:

Let the number is x. Its reciprocal will be 1/x. According to given condition, we get :

$x+\dfrac{1}{x}=\dfrac{41}{20}\\\\\dfrac{x^2+1}{x}=\dfrac{41}{20}\\\\20x^2+20=41x\\\\20x^2-41x+20=0$

It is a quadratic equation. The values of x are :

$20x^2-25x - 16x+ 20 =0\\\\5x(4x - 5) -4( 4x - 5) = 0\\\\(5x-4)(4x-5)=0\\\\5x-4=0\ \text{and}\ (4x-5)=0\\\\x=\dfrac{4}{5}\ \text{and}\ x=\dfrac{5}{4}$

The smaller number is 4/5 and the larger number is 5/4.

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3 years ago

Chipper had 189 hits in 572 at bats calculate chippers batting average for season by dividing the number if hits by the number o

lord [1]

Answer:

0.330

Step-by-step explanation:

Divide the number of hits (189) by the number of bats (572)

189/572=0.330

8 0

3 years ago

Which cell function must occur for an organism to have enough water and nutrients?

Svet_ta [14]

Answer:

i think the endocytosis

Step-by-step explanation:

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2 years ago

Payne saves $2,000 at a yearly simple interest rate of 2%. He earns $280 in interest. How many years did he save his money?

Flauer [41]

The answer if 7 years, if you multiply 2,000 by .02 it equals 40. so you divide 280 by 40 and get 7

6 0

3 years ago

1410+0515 in milartary time

OLEGan [10]

That would be 1925 ( 15 + 05 = 19 and 10 + 15 = 25)

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3 years ago

Read 2 more answers