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Maths Puzzle
Numerical Ability
the sum of three-fourths of a number and two is eight.find the number
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book Other Question
How do you find the pattern of change in a graph for?
f(x)= -3x^2 - 50x + 4
f(x) = -x^2 + 5x - 3
f(x) = -6|x+3|
f(x) = |x+11|
How do you know that if you start with two equal ratios that you will always end up with two equal products after cross multiplying?
I know how to work the problems, but cannot put it into words. Not sure what they are looking for.