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There are 30 counters in total in the bag. If we visualise the ratio as there being x red counters and 5x green counters, we find that there are 6x counters in total in the bag, and thus we can conclude t...
Speed is equal to the distance divided by the time, so this will be our calculation. In the question, the distance is given in miles and the time in hours, so the speed should be in miles per hour...
Quadratic formula. x=(b+-SQRT(b^2-4ac))/2a substitute. x=(10+-SQRT(100-416))/21 simplify. x=5+2SQRT(19)/2ORx=5-2SQRT(19)/2
< RIght angled triangle with sides of length 8mm, 5mm and h. Unknown angle z denoted.Use SOH CAH TOA in trigonometry to label the triangle accordingly, then find that 'tan' is to be used. Finally, use ...
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