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Wewaii [24]
4 years ago
15

A spring stretches by 21.0 cm when a 135 n object is attached. what is the weight of a fish that would stretch the spring by 49

cm?
Mathematics
1 answer:
Akimi4 [234]4 years ago
8 0
If the stretch is proportional to the weight, it will satisfy
   weight/(49 cm) = (135 N)/(21 cm)
   weight = (49/21)×135 N
   weight = 315 N

The weight of the fish would be 315 N.
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Answer: $8.19

Step-by-step explanation: Times 565 by 1.45% and that's what you get.

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A square has an area of 289 sq cm. what is the length of one side
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3 years ago
Pearl's Biking Company manufactures and sells bikes. Each bike costs £40 to make, and the company's fixed costs are £5000. In ad
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Answer:

R(x) =300·x - 2·x²

C(x) = £5000 + £40 × x

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Step-by-step explanation:

Given that the price function P(x) = 300 -2·x

Cost per bike = £40

The revenue function R(x) is given by  bike price × total number of bikes manufactured and sold

∴ R(x)  = P(x)×x = (300 - 2·x)×x = 300·x - 2·x²

The company's cost function, C(x) is Fixed cost + cost to produce each bike × total number of bikes produced

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The break even point is given by the relation;

Total revenue - total cost = 0

That is, break even point is R(x) - C(x) = 0

300·x - 2·x² - (5000 + 40·x) = 0

-2·x²+260·x-5000 = 0 or 2·x²- 260·x + 5000 = 0

Factorizing, we have;

(x - (65 -5√69))(x - (65 +5√69))

Solving gives x = 23.47 or 106.53

Therefore, the break even points are 23.47 and 106.53.

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