Exercise
Form 13: Word Problems - Multiplying Rational Numbers
Solve word problems that require multiplying rational numbers. Apply operations to scenario-based mathematical questions.
Questions
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MultiChoice
A submarine descends at a rate of 4.5 meters per second. What is its total change in depth after 12 seconds?
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MultiChoice
The temperature drops by 2.5 degrees Celsius every hour. What is the total change in temperature after 6 hours?
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MultiChoice
A bank account balance changes by -$15.50 each day for 4 days. What is the total change in balance?
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MultiChoice
A stock value decreases by 3/4 of a dollar per share each hour for 5 hours. What is the total change in value?
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MultiChoice
A hiker descends a mountain at 1 1/2 miles per hour for 3 hours. What is the hiker's change in elevation?
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MultiChoice
A test deducts 2.5 points for each incorrect answer. A student gets 8 wrong answers. What is the score change?
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MultiChoice
A water tank leaks at a rate of 0.8 gallons per minute. What is the change in water volume after 15 minutes?
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MultiChoice
An engine oil level changes by -0.15 liters per week. What is the total change over 8 weeks?
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MultiChoice
A diver moves down 3/5 meters each second. What is the change in position after 10 seconds?
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MultiChoice
A business loses $450.50 each month for 4 months. What is the total net change in earnings?
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MultiChoice
The height of water in a reservoir drops 1/4 inch per day for 14 days. What is the net change in depth?
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MultiChoice
A car uses 0.05 gallons of fuel per mile. What is the change in total fuel after driving 120 miles?