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Maths
GCSE

The normal price of a television is £1200. It is reduced to £970. Work out the percentage reduction. Give your answer to 1 decimal place.

First we calculate the difference between the original price and the new price. This is £1200 - £970 = £230. We now divide this difference by the original price, and multiply it by 100 to find the percent...

Answered by Harry H. Maths tutor
14107 Views

How can you find the integral of x^-1

The traditional rule for integration of a variable raised to a power is to raise the power by 1 and divide the answer by that new exponent. However, this rule leads to an answer of x^0 = 1, which can't...

Answered by Angus L. Maths tutor
47802 Views

Write 825 as a product of its prime factors.

Prime factors are numbers that can only be fully divided by itself and 1.

For example, 2, 3 and 5 are prime numbers since they can only be divided by itself and 1. However, 6 is not a pri...

Answered by Ewan V. Maths tutor
17615 Views

Using factorization, solve x^2 + 10x + 24 = 0

To factorize the equation we need to find two numbers a and b such that
a * b = 24 and
a + b = 10
By closely looking at those, we find that 4 and 6 satisfy...

Answered by Sebastian-Stefan S. Maths tutor
7461 Views

There are 200 students in Year 10. 110 are boys. There are 250 students in Year 11. 140 are boys. Which year has the greater proportion of boys?

Let P1 and P2 be the proportion of boys in each year.
In order to compare them we should pur the two proportions into simple forms.
P1 = (Number of boys) / (

Answered by Sebastian-Stefan S. Maths tutor
9004 Views

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