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Maths Made Easy: Advanced, Ages 7-8 (Key Stage 2): Supports the National Curriculum, Maths Exercise Book (Made Easy Workbooks)

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The coefficients are the numbers before x and y, make the x coefficients the same by scaling up both equations simply look up the answers. If you want the answers, either bookmark the worksheet or print the answers straight away. From the red Metric conversions table, we can see that there are three different length unit conversions we need to know, \text{\textcolor{red}{mm}} to \text{\textcolor{blue}{cm}} to \text{\textcolor{limegreen}{m}} to \text{\textcolor{purple}{km}} and vice versa. When converting areas from one unit to another, we need to be careful, as we are multiplying two units together.

Because one of these equations is quadrati c (Non-linear), we can’t use elimination like before. Instead, we have to use substitution. From a humble beginnings of a dedicated individual adding free Maths content for all, to one of the country’s leading Maths, English and Science resources and a team committed to expanding on the good work, Maths Made Easy will continue to help more and more people find exceptional revision materials alongside expert private tutors. In other words, it will take this particular car \textcolor{limegreen}{3600} seconds to travel \textcolor{blue}{50000} metres, so the number of metres they travel every second will be:

Example: A car is driving at \textcolor{red}{50} \text{km/h}. Give the speed of the car in metres per second. text{ m} Step 1: Rearrange the linear equation to get one of the unknowns on its own and on one side of the equals sign. Step 2: Now we must get the coefficients to match, in this case we can multiply the first equation by 2 Speed conversions are some of the most difficult conversions you will see. This is because they are made up of two different measures. We have to convert the distance units and time units one at a time.

To do this, we’ll use a process called elimination– we’re going to eliminate one of the variables by subtracting one equation from the other. We will write one equation on top of the other and draw a line underneath, as with normal subtraction.

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