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Galina-37 [17]
3 years ago
14

Evaluate the expression when a = -5 and b = 4

Mathematics
1 answer:
Gwar [14]3 years ago
8 0

Answer:

could you please explain me the exact question

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Pearl's Biking Company manufactures and sells bikes. Each bike costs £40 to make, and the company's fixed costs are £5000. In ad
____ [38]

Answer:

R(x) =300·x - 2·x²

C(x) = £5000 + £40 × x

The break even points are 23.47 and 106.53 or 23 and 107 bikes

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

∴ C(x) = £5000 + £40 × x

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.

That is the company is profitable when they produce less than 23 bikes or more than 107 bikes.

3 0
3 years ago
How many different ways can you write a fraction that has a numerator of 2 as a sum of fractions
Rzqust [24]
At least you can write it as the sum of half of it twice, that is:
2/x = 1/x + 1/x
whatever x number you have, for example:
2/5 = 1/5 + 1/5

But then, you can express a fraction in many different ways, for example again:
2/5 = <span>1/5 + 1/5 = 2/10 + 2/10
</span>= 1/10 + 1/10 + 1/10 + 1/10
so there are an infinite ways of expressing such a fraction.
7 0
3 years ago
If you have 3/8 of one pie what does the denominator tells you
Viktor [21]
The denominator tells you the total amount of pieces.
8 0
3 years ago
Read 2 more answers
The selling price of an article is Rs 270. If the article was sold at 10 % discount from the marked price, find the marked price
zloy xaker [14]

Answer:

s. p = 270 Rs

discount = 10%

mp.= ?

Mp = s. p + discount

= 270 + 10/100*270

= 270 + 27

= 297 Rs

<h2>297 Rs is the marked price </h2>
7 0
2 years ago
Read 2 more answers
HELP PLS 20 POINTS! I WILL MARK BRAINLIEST
Alex777 [14]

Answer:

I believe it is 2 for $5.08

Step-by-step explanation:

1.27 times 2 is 2.54

2.54 times 5 is 12.70

7 0
3 years ago
Read 2 more answers
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