Top answers

work out 3 1/2 - 2 1/3. Give answer as an improper fraction

change everything to sixths. 21/6 - 14/6 = 7/6
MS
Answered by Maiya S. • Maths tutor
3880 Views

Solve (x^2 - 4)/(2x+4)

The common mistake the students make is to simplify the fraction before factorising numerator and denominator. Here, we need to see that the numerator: x^2 - 4 is a difference between squares , i.e. A^2 - B^...
MM
Answered by Martina M. • Maths tutor
4334 Views

In year 11, 3/7 of pupils go on holiday abroad in the summer break. Out of these, 1/3 go to France. Determine the ratio of pupils who go to France in summer to pupils who do not go to France in summer.

We can approach this question by breaking it into two steps; first use the information given to work out what proportion of pupils in year 11 went to France. Once we have this, we can go on to find the ratio...
AS
Answered by Anisah S. • Maths tutor
2977 Views

A scalene triangle has 3 angles ABC in degrees, where A = (3x + 7), B = (4x + 5), C = (x + 8). Find the value of largest angle.

Equate all the angles to 180 degrees.3x+7+4x+5+x+8=1808x+20=1808x=160Therefore, x=20 .Hence, A =3(20)+7= 67B =4(20)+5= 85C =20+8= 28 Therefore the largest angle is B.
AP
Answered by Alexander P. • Maths tutor
4022 Views

25= x2 + 10 - 6. Find X

first take the 6 to the other side. 31 = x2 + 10Then take the 10 to the other side by taking it away from 3121= x2square root 21 inorder to find xx= 4.58
AN
Answered by Akhil N. • Maths tutor
3399 Views