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Solve the simultaneous equation: (16^x)/(8^y)=1/4 and (4^x)(2^y)=16

This solution requires you to use your knowledge of power extensively. The final must be shown with a lot of working out, the solution is x=1 and y=2.

Answered by SYED A. • Maths tutor

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A car travels 100 metres in 20 seconds. i) What is the cars speed? ii) How far would the car travel in 1 minute 40 seconds?

To answer this question, we will need the following equation: SPEED = DISTANCE/TIME (A multiplication and division triangle will be shown)i) The speed of the car is calculated by doing 100 metres/ 20 seco...

Answered by Delwar H. • Physics tutor

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Solve this simultaneous equation: 3x + y = 10, x + y = 4

x = 3

Answered by Hibah M. • Maths tutor

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Solve this simultaneous equation for x: 3x + y = 10, x + y = 4

x = 3

Answered by Hibah M. • Maths tutor

3921 Views

Rationalise the denominator of 1/(4 + sqrt(3))

This denominator is irrational because it contains a surd. To rationalise the denominator we multiply the numerator and denominator by the conjugate of the denominator. In this case, the conjugate of the ...

Answered by Giles M. • Maths tutor

7475 Views