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Radda [10]
3 years ago
5

Alfie buys two books, each at the same price. He pays with a £10 note and gets £2.30 change.

Mathematics
1 answer:
Simora [160]3 years ago
7 0
First subtract the amount he paid from the amount of change he got:

10 - 2.30 = 7.70

So the price for the two books was <span>£7.70, now divide by 2.

7.70 / 2 = 3.85

So each book cost </span><span>£3.85</span>
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what is the probability of rolling 6 five times in a row? Write your answer as a fraction in simplest form.
qaws [65]

Answer:

1/7776.

Step-by-step explanation:

The probability of rolling a six in 1 throw = 1/6.

Rolling   a 6 5 times in a row = (1/6)^5

= 1/7776.

The probability is multiplied because each roll is independent from other rolls.

5 0
3 years ago
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Factorize 81xsquared+180x+100
bekas [8.4K]

Answer:

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2 years ago
Tell whether the pair of polygons is similar. Explain why or why not. (3 points) I get the general idea of this but I’m having t
masha68 [24]

Answer:

PQRS and TUVW are similar.

Step-by-step explanation:

We are give two polygons.

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PQ = 8 ft

QR= 13ft

RS = 8ft

PS = 13ft.

Sides of second polygon:

TW = 2.4 ft

TU = 5.2 ft

UV = 2.4 ft

VW = 5.2 ft.

We can see that PQRS and TUVW are parallelograms.

Note: <em>If an angle of a parallelogram is equal to an angle of another parallelogram then parallelograms would be similar.</em>

We can see that <Q ≅ <T = 120°.

<h3>Therefore, PQRS and TUVW are similar.</h3>

5 0
3 years ago
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Dennis_Churaev [7]

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-4

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Insert the coordinates into the formula

\frac{0-4}{(-1)-(-2)}

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\frac{-4}{1}

Therefore the slope is -4

3 0
2 years ago
Why are these triangles similar?​
Lostsunrise [7]
The answer is SAS

good luck
8 0
2 years ago
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