Top answers

Solve the following two equations simultaneously: 3x + y = 10, x + y = 4

Label the equations Equation 1: 3x + y = 10Equation 2: x + y = 42) Establish if the equations need to be subtracted or added together: 'Same sign is subtract and different sign is add' Therefore we need to s...
BA
Answered by Bethany A. • Maths tutor
3587 Views

Sketching a quadratic

Firstly ensure equation is equal to 0, so all variables are on one side of the equation. Factorize the quadratic to find the x intercepts. Complete the square to find the minimum/maximum point of the curve.I...
AB
Answered by Abraham B. • Maths tutor
3296 Views

Prove the square of an odd number is always 1 more than a multiple of 4

We will start by representing an odd number using algebra. Let n be a integer, i.e. 1,2,3,4,etc. then we can define an odd number as (2n)-1. This is because if a number is of the form 2n it must be even, sin...
TD
Answered by Tutor285427 D. • Maths tutor
36177 Views

Solve the simultaneous equations: 1) 6a+b=11 , 2) 5a-2b=19

To solve, first create a common factor for b by multiplying the 1st equation by 2 to get: 12a+2b=22.Now, add the two equations together to get: (12a+5a) + (2b-2b) = (22+19)which is 17a=41 , when simplified.S...
JT
Answered by James T. • Maths tutor
4785 Views

Explain the difference in function of auxins in plant shoots and roots.

Auxins are plant growth hormones found in both the roots and shoots of plants, in the shoots they promote growth whereas in the roots they inhibit it. In the shoots they cause cell elongation in the side of ...
EL
Answered by Eve L. • Biology tutor
24207 Views