bridget's pizza shack sells more pepperoni pizzas than plain pizzas by a ratio of 7 to 4. if 585 pepperoni pizzas are sold in a month, about how many total pizzas are sold in the same time

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01-06-2017
Mathematics

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bridget's pizza shack sells more pepperoni pizzas than plain pizzas by a ratio of 7 to 4. if 585 pepperoni pizzas are sold in a month, about how many total pizzas are sold in the same time

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altavistard altavistard · Answer 1 · 2017-06-05T05:56:05+02:00

Start with "a ratio of 7 to 4:"

7 number of pepperoni pizzas 585
--- Equate this ratio to ----------------------------------------- = -------
4 number of plain pizzas p

Solve this equation of ratios for p, the number of plain pizzas sold.

Cross multiply: 7p = 4(585). Divide both sides by 7 to get the approx number of plain pizzas that are sold. Your final answer, the total number of pizzas sold, will then be 585 plus the value of p that you've just found.