LP7­ Conversions.notebook
October 05, 2016
Warm Up: Solve and check the following equations.
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LP7­ Conversions.notebook
October 05, 2016
Unit Conversions
The world’s largest living organism is a fungus known as the Honey
Mushroom, growing in the Malheur National Forest in Oregon. The fungus covers
approximately 1100 acres. How many square miles is this? [1 sq mi = 640 acres]
An auto mechanic spends 15 min on an oil change. The mechanic charges a labor
fee of $55 per hour. How much will be the charge for labor?
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LP7­ Conversions.notebook
October 05, 2016
An automotive technician testing cars finds that a certain bumper will prevent
damage up to 8.5 ft/sec. What speed is this in miles per hour?
Wrought iron has a density of 480 lb/cu ft. What is the density in lb/cu in?
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LP7­ Conversions.notebook
October 05, 2016
A cell phone can receive 120 messages per minute. At this rate, how many
messages can the phone receive in 150 seconds?
Nicole’s aerobics class exercises to fast-paced music. If the rate of the music is 120
beats per minute, how many beats would there be in a class that is 0.75 hour long?
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LP7­ Conversions.notebook
October 05, 2016
A car uses one gallon of gasoline for every 20 miles it travels. If a gallon of gasoline
costs $3.98, how much will the gas cost, to the nearest dollar, to travel 180 miles?
Which expression can be used to change 75 kilometers per hour to meters per
minute?
(a)
(c)
(b)
(d)
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LP7­ Conversions.notebook
October 05, 2016
Dan took 12.5 seconds to run the 100-meter dash. He calculated the time to be
approximately
(a) 0.2083 min
(b) 75 minutes
(c) 0.2083 hours
(d) .05283 hours
Elizabeth is baking chocolate chip cookies. A single batch uses ¾ teaspoon of vanilla.
If Elizabeth is mixing ingredients for five batches at the same time, how many
tablespoons of vanilla will she use?
3 teaspoons = 1 tablespoon
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LP7­ Conversions.notebook
October 05, 2016
Last year, Nick rode his bicycle a total of 8000 miles. To the nearest yard, Nick rode
an average of how many yards per day?
A jogger ran at a rate of 5.4 miles per hour. Find the jogger's exact rate, in feet per
minute.
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LP7­ Conversions.notebook
October 05, 2016
1) Joseph typed a 1,200-word essay in 25 minutes. At this rate,
determine how many words he can type in 45 minutes.
2) If the speed of sound is 344 meters per second, what is the approximate speed of
60 seconds = 1 minute
sound, in meters per hour?
60 minutes = 1 hour
3) Peter walked 8,900 feet from home to school.
1 mile = 5280 feet
How far, to the nearest tenth of a mile, did he walk?
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