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3 years ago

Express 50p as a fraction of £8 Give your answer in its simplest form.

Mathematics

2 answers:

Sonbull [250]3 years ago

5 0

Answer:

1/16

Step-by-step explanation:

Convert 50p to pound sterling.

50p = £0.5

Divide £0.5 with £8.

0.5/8

Simplify the fraction.

0.5×2/8×2

1/16

serious [3.7K]3 years ago

3 0

Answer:

5/80= 1/16

Step-by-step explanation:

Firstly we know that £1 equals 100p.

Then we could write 50p as £0.5 (As 50/100= 5/10= 1/2= 0.5), which is equivalent.

Now do the fraction, £0.5 over £8, which is 0.5/8, enlarge both of the numerator and denominator 10 times simly gives us 5/80= 1/16

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The answer is probably -78*degree sign*C.

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3 years ago

sin alpha = 7/25, alpha lies in quadrant ii, and cos beta = 2/5, beta lies in quadrant i. find cos(alpha-beta).

Ilia_Sergeevich [38]

Answer:

Therefore $\cos(\alpha-\beta)=\frac{48+7\sqrt{25}}{125}$

Step-by-step explanation:

Given values are

$\sin \alpha=\frac{7}{25}$

$\cos \beta=\frac{2}{5}$

$\sin^2x+\cos^2=1$

$\cos \alpha=\sqrt{1-\sin^2\alpha}$

$\cos \alpha=\sqrt{1-(\frac{7}{25})^2}$

$\cos \alpha=\sqrt{1-\frac{49}{625}}$

$\cos \alpha=\sqrt{\frac{576}{625}}$

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$\sin \beta=\sqrt{1-\cos^2\beta}$

$\sin \beta=\sqrt{1-(\frac{2}{5})^2}$

$\sin \beta=\sqrt{1-\frac{4}{25}}$

$\sin \beta=\frac{\sqrt{21}}{5}$

$\cos(\alpha-\beta)=\cos\alpha\cos\beta+\sin\alpha\sin\beta$

$\cos(\alpha-\beta)=\frac{24}{25}\times\frac{2}{5}+\frac{7}{25}\times\frac{\sqrt{21}}{5}$

$\cos(\alpha-\beta)=\frac{48+7\sqrt{25}}{125}$

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2 years ago

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alex41 [277]

<h2>Answer:</h2>

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2 years ago

What are the side lengths of a rectangle if the area = 40 in and the perimeter = 48 in

Serggg [28]

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3 years ago

Read 2 more answers

Suppose you bought D DVD's and B Books. If each DVD cost $14.95 and each book you bought off the 'specials' table cost $6.95, wr

Doss [256]

Answer:

14.95D + 6.95B

Step-by-step explanation:

Well a simple expression would make D the amount of DVD's you bought and B the amount of Books purchased.

In simple cases the prices don't change depending on that amount so you can multiply them by making it 14.95D and 6.95B.

Making the expression 14.95D + 6.95B.

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2 years ago