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Dipen and Nisha are planning a wedding reception. Nisha says, “I want to invite 70 guests.” Dipen says, “If we invite one-fifth fewer guests, we will save more than £500” Is Dipen correct?

Prices are: £40 per guest. Total cost reduced by 5% with over 60 guests. First, we work out the cost of Nisha's suggestion. £40 x 70 guests = 2800 To find 5% of this, we can divide by 10 to get 10% (280), an...
LM
Answered by Lily M. • Maths tutor
7764 Views

How do I solve a quadratic equation?

The best way to solve a quadratic function is to put brackets into the equation. Start with an example Find x when y=0 for the function y=x * 2 + 5 x + 6 As y=0 make the whole equation= 0: x * 2 + 5 x + 6=0 ...
RB
Answered by Rosiered B. • Maths tutor
4654 Views

Rearrange the formula to make 'y' the subject: x = (1 - 2y)/(3 +4y)

Ok so we need to get 'y' by itself on the left hand side of equal sign. We will first try to remove the denominator by multiplying 'x' by (3+4y). This gives (3+4y)x = 1 - 2y. We will then expand the brackets...
WI
Answered by Wajiha I. • Maths tutor
18071 Views

What is the highest common factor of 24 and 90?

To find the highest common factor of 24 and 90 we do this in three steps: 1. Find the prime factorisation of the two numbers. This means rewrite each given number as a product of only prime numbers. The prim...
JP
Answered by Joseph P. • Maths tutor
14012 Views

Solve the quadratic 2x^2+7x+6 by completing the square

All quadratic equations take the general form: ax 2 +bx+c=0 The first step used to comlete the square is to divide the whole equation by the a term, in our case 2 : 1) x 2 +(7/2)x+3=0 We then move our c term...
HN
Answered by Henry N. • Maths tutor
17452 Views