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Maths
GCSE

There are 12 counters in a box, 5 red and 7 blue. 2 counters are taken out at random without replacement, what is the probability that they are the same colour?

We need to consider two possibilities, you could either pick out two blues or two reds. To find the total probability we work it out for each individually and then add them together. We can find the proba...

CR
Answered by Christopher R. Maths tutor
4526 Views

A car costs £1200 in a sale. It was reduced by 20%. What was the original price?

£1200 is 80% of the original price.We need to find what 100% of the original price is.if £1200 is 80% then to find 1% we can divide it by 80.
1200/80=15
£15 is 1% of the original price to find 1...

LF
Answered by Luke F. Maths tutor
4988 Views

y = p x q^(x - 1), When x = 1, y = 10, and when x = 6, y = 0.3125. Find the value of 'y' when x = 3

When x = 1, y = 10Therefore, p x q(1 - 1) = 10 p x q0 = 10 p x 1 = 10, p = 10When x = 6, y = 0.3125 p x q(6 - 1)= 0.3125 10 x q5 = 0.3125 q5 = 0.0312...

PM
Answered by Prahlad M. Maths tutor
8802 Views

Write 16 × 8^2x as a power of 2 in terms of x

16 = 42 = (22)2 = 248 = 23 , therefore 82x = 23(2x) = 26x24 x 26x = 24 + 6x

PM
Answered by Prahlad M. Maths tutor
5925 Views

Factorise 4x + 52

4(x+13)

NS
Answered by Nick S. Maths tutor
2924 Views

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