Ralph is 3 times as old as Sara. in 4 years ralph will be only twice as
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Ralph is 3 times as old as Sara. in 4 years ralph will be only twice as old as Sara will be then. Find ralphs age now. if X represents sarahs age now
Related Book For
Microeconomics An Intuitive Approach with Calculus
ISBN: 978-0538453257
1st edition
Authors: Thomas Nechyba
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