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3/8 is the same as ?/24 ?

Look at the two fractions to see what multiplier has been used. In this case, the denominators are both known: 8 and 24. 8 has been multiplied by 3 to get a new denominator of 24. This means the numerator al...
RC
Answered by Rahul C. • Maths tutor
4276 Views

4x-y=3 and 3x-2y=1. Solve these simultaneous equations to find values for x and y.

Equation 1: 4x-y=3 Equation 2: 3x-2y=1 We have to find a common multiple between 4 and 3 so that both equations have the same first value. This means that we can get rid of the x by subtracting the second eq...
JH
Answered by Jami H. • Maths tutor
12055 Views

Find the first derivative of the line equation y=x^3 + 4

dy/dx = 3x^2
HF
Answered by Harry F. • Maths tutor
4065 Views

Integrate x((x^2)+2) dx

The first step is to multiply out the brackets so the function is in a form that can be integrated. X x X 2 = X 3 then X x 2 is simply 2X. So we are left with X 3 + 2X. Both parts of this function can be int...
BH
Answered by Benjamin H. • Maths tutor
3855 Views

There are 31 days in January. January 21st 2015 was a Wednesday. What day of the week was February 8th 2015?

First we need to know how many days are still remaining before the end of January. In this case it would be 10 since 31-21=10. We know that 8th of February is the 8th day of the month, so in total between Ja...
RD
Answered by Roman D. • Maths tutor
8357 Views