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Northern Bank has two types of account. Both accounts pay compound interest. Cash savings account: Interest 2.5% per annum Shares account: Interest 3.5% per annum Ali invests £2000 in the cash savings account. Ben invests £1600 in the shares account.

Q: Northern Bank has two types of account. Both accounts pay compound interest. Cash savings account: Interest 2.5% per annum Shares account: Interest 3.5% per annum Ali invests £2000 in the cash savings acc...
SB
Answered by Simran B. • Maths tutor
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Rob has a bag with white, black and blue counters. There are twice as many blue counters than there are white. A qaurter of all the counters are black. If there are 5 white counters, how many counters are in the bag.

White:blue is 1:2. (There are twice as many blue counters)if there are 5 white counters there are 10 blue counterswhite + blue = 15in the bag there are the 15 white and blue counters PLUS the blacki.e. In th...
AK
Answered by Aurimas K. • Maths tutor
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In a right-angled triangle calculate the length of the hypotenuse when the side lengths at 5cm and 7cm. Leave your answer as a surd.

Using pythagoras’ theorem:a^2 + b^2 = c^2 hypotenuse = sqrt(5^2 + 7^2) = sqrt(25+49) = sqrt(74)
Answered by • Maths tutor
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Solve the equation x^2 + 10x + 24 = 0

So, we are dealing here with a quadratic equation as it is written in the form ax^2 + bx +c = 0 To tackle this we will firstly need to factorise the equation, we need to find two numbers that will multiply t...
AS
Answered by Aleema S. • Maths tutor
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Factorise 8x^2 + 6x +1

8x 2 + 6x + 1. This is a quadratic equation as the highest power of x is to the power of 2.A quadratic is written in the form: ax 2 + bx + c. The coefficient of the x 2 term is greater than one. So you need ...
Answered by • Maths tutor
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