the local hardware store wants to increase their inventory. Last year 15 electric screwdrivers cost them 300.how much would 45 screwdrivers cost

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07-07-2017
Mathematics

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the local hardware store wants to increase their inventory. Last year 15 electric screwdrivers cost them 300.how much would 45 screwdrivers cost

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altavistard altavistard · Answer 1 · 2017-07-07T21:52:58+02:00

altavistard altavistard

07-07-2017

One way of doing this is to write the equation of ratios (15 screwdrivers / 45 screwdrivers) = ($300 / x). Solve this equation for x. To do this, you might try multiplying both sides of this equation by x to eliminate fractions.

Another way is to obtain the unit cost of each screwdriver and then multiply the result by 45 screwdrivers.

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