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Keith_Richards [23]
2 years ago
5

Sian bought a TV in the January sales which had been reduced by 20 per cent. If she paid £290 for it, what was the original pric

e?
Mathematics
2 answers:
Rudik [331]2 years ago
7 0
I think the anwer is 362.50
ohaa [14]2 years ago
7 0
If x is the  original price 
then  0.80 x  = 290
  x = 290 / 0.80 =  £362.50
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We can use the fact that, for |x|,

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\dfrac{\mathrm d}{\mathrm dx}\left[\dfrac1{1-x}\right]=\dfrac1{(1-x)^2}

so that

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f(x)=\displaystyle5\sum_{n=0}^\infty nx^{n-1}

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By the ratio test, this series converges if

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5 0
2 years ago
A recipe for sugar cookies requires 2 cups of flour for every 2/3 cups of sugar at this rate how many cups of sugar should be us
maks197457 [2]
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4 0
3 years ago
Use a double angle identity to rewrite the formula r(Θ)=<img src="https://tex.z-dn.net/?f=1%2F16v%5E2sin%28theta%29cos%28theta%2
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Answer:

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Step-by-step explanation:

Given the expression r(theta) = 1/16v²sinθcosθ

According to double angle of trigonometry identity;

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Sin2θ = sinθcosθ + cosθsinθ

Sin2θ = 2sinθcosθ

sinθcosθ = sin2θ/2 ... **

Substituting equation ** into the question

1/16v²sinθcosθ = 1/16v²(sin2θ/2)

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7 0
3 years ago
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Shtirlitz [24]

Answer:

13,600 dollars

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8 0
3 years ago
What is x in 6x - 4 = 8 ( 2 +1/4 x)
defon

Answer:

5

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x=5

4 0
2 years ago
Read 2 more answers
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