Top answers

Use Pythagoras theorem to work out the hypotenuse when the adjacent length of a triangle is 3 and the opposite side is 4.

using the Pythagoras formula: a^2 + b^2 = c^2 the longest measurement is always the hypotenuse due to the orientation of a triangle and so c is the hypotenuse leaving the a and b to be the two measurements w...
SS
Answered by Saif S. • Maths tutor
3031 Views

Add the fractions 2/5 + 3/7.

We must find a common denominator between the fractions to be able to add them (the bottom numbers must be the same). A common denominator of 5 and 7 is 35. To get to 35 from 5 we multiplied by 7, therefore ...
AL
Answered by Alex L. • Maths tutor
18427 Views

The 4th and 5th multiples of a number are 24 and 30. What is the number?

6
MJ
Answered by Marcus J. • Maths tutor
2845 Views

A restaurant can be hired out for children's parties, and the cost is shown by the formula "Cost = (£13.50 x number of children) + £23". What is the cost for 8 children?

Cost = (13.50 x number of children) + 23.Cost = (13.50 x 8) + 23.BIDMAS. Brackets first.Cost = 108 + 23 = £131.
TD
Answered by Thomas D. • Maths tutor
2922 Views

Solve the simultaneous equations: 2 + 5y = 3x, x + y = 6

Solve the simultaneous equations: 1. 2 + 5y = 3x2. x + y = 6 step 1 - rearrange equation 2 to make x/y the subject how? example: subtract y from both sidesx = 6 - y step 2 - substitute x = 6 - y into equatio...
PW
Answered by Phoebe W. • Maths tutor
2757 Views