Top answers

Solve these simultaneous Equations: 4y-2x=8 and 2x-y=7

So there are many different ways of solving this equation, one being that u can find out what one of the values of x and y are and then putting the answer of the value back in the equation. The way to isolat...
HW
Answered by Harrison W. • Maths tutor
4350 Views

Given the function f(x) = 2x^(2) + 3, find the value of x when f(x) = 53.

Substitute f(x) = 53 into the equation given:f(x) = 53 = 2x 2 + 32). 2. Rearrange to get x 2 on the left hand side: x 2 = (53-3)/2 = 253). 3. Square root both sides. Remember, the answer can be positive or n...
EB
Answered by Emily B. • Maths tutor
5776 Views

What are indices laws?

Indices are often referred to as powers of a number. A power of a number is the number of times you multiply that number by itself. The indices laws are the rules for how these numbers can be manipulated to ...
AG
Answered by Alex G. • Maths tutor
5202 Views

what are the highest common factor of 75 and 100?

First, we factorize each number.150=(5^2) 3 2 and 100=(2^2)*(5^2) then to calculate the highest common factor we take the common factors with the smallest powers. In this case (5^2) and 2. That means that th...
HB
Answered by Hawa B. • Maths tutor
4248 Views

John has £385 he wants to give to Charlie, Ben and Sarah. He gives them the money in the ratio 1:2:4 respectively. How much money does each person get?

You have a total of £385 to split to Charlie, Ben and Sarah in the ratio of 1:2:4. First, I ask myself how many parts am I splitting the £385 into?From the ratio, I know the total number of parts = 1 + 2 + 4...
NV
Answered by Nathan V. • Maths tutor
3896 Views