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At the shop, Max buys 5 juice boxes and 12 sweets which costs him £1.34 in total. If x represents the cost of one juice box (in pence) and y represents the cost of one sweet (in pence), write out an equation, in terms of x and y, to show this

5x + 12y = 134
MJ
Answered by Maryum J. • Maths tutor
1747 Views

It is given that n satisfies the equation 2*log(n) - log(5*n - 24) = log(4). Show that n^2 - 20*n + 96 = 0.

Given 2log a n - log a (5 n -24) = log a (4) , we can rearrange to have all the "2logs" on one side and the "logs" on the other.So, 2log a n = log a (4) + log a (5 n -24) . Using the laws...
CS
Answered by Cara S. • Maths tutor
5922 Views

An electron is moving with speed 2x10^5ms-1 through a magnetic field of strength 0.5T. If the electrons velocity is perpendicular to the direction of the magnetic field, what is the magnitude of the force felt by the electron?

F = q v x B = qvB sin(O). q is the electrons charge = 1.6x10 -19 C. v is the electrons speed = 2x10 5 ms -1 . B is the magnetic field strength = 0.5 T. O is the angle between the electrons velocity vector an...
AB
Answered by Angus B. • Physics tutor
2562 Views

Solve the following equation for x: x^2 - 4x - 17 = 4

First, take 4 from both sides of the equation to get everything on the LHS:x^2 - 4x - 17 - 4 = 4 - 4 so we have x^2 - 4x - 21 = 0We are looking to factorise the equation in the following way:(x + a)(x + b) =...
JH
Answered by Jennifer H. • Maths tutor
3971 Views

[after scenario] What offences could Ken be liable for when looking at his conduct towards Norma?

Ken could be liable for the theft of the jackets he sent for dry cleaning at Norma’s shop.Theft is defined in section 1 of the theft act 1968 as the appropriation of property belonging to another, dishonestl...
GM
Answered by George M. • Law tutor
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