If I drive my car 60 miles per hour on a full tank of gas, it will run for 5 hours. For every mile per hour I speed up, the car will run 10 minutes less. For every mile per hour I slow down, the car will run 10 minutes more. In terms of x, how far can I drive on one tank of gas

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step-by-step explanation:

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so, converting firstly the mixed fractions to improper fractions and then "adding".

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.