Proportions and Problem Solving

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Presentation transcript:

Proportions and Problem Solving Section 6.3 Proportions and Problem Solving

Problem Solving Converting a work problem into a proportion, then solving the equation. The proportion needs to be set up Look for pairs, usual together in a sentence. Match up the like terms Labels needs to be part of the whole process

Example The University Law School accepts 2 out of every 7 applicants. If the school accepted 180 students, find how many applications they received.

Example A Honda Civic Hybrid averages 627 miles on a 12.3 gallon tank of gas. Manuel Lopez is planning a 1250 mile vacation trip in his Honda Civic Hybrid. Find how many gallons of gas he can expect to burn. Round to the nearest gallon.

Example A bag of Scott fertilizer covers 3000 square feet of lawn. Find how many bags of fertilizer should be purchased to cover a rectangular lawn 260 feet by 180 feet.

Example A Cubs baseball player gets 3 hits every 8 times at bat. At this rate, if he got 12 hits, find how many times he batted.

Example A 16oz grande Tazo Black Iced Tea at Starbucks has 80 calories. How many calories are there in a 24 ounce venti Tazo Black Iced Tea?

Example There are 72 milligrams of cholesterol in a 3.5 ounce serving of lobster. How much cholesterol is in 5 ounces of lobster? Round to the nearest tenth of a milligram.

Example Hannah wants to drive from Charlotte, North Carolina to Raleigh, North Carolina. How many kilometers and miles will she travel?