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words to know in middle school
Terms in this set (6)
Examine and judge carefully.
to find the value of an expression
A number multiplied by a variable.
Give valid reasons or evidence to support an answer or conclusion.
A mathematical sentence that contains an equals sign.
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After soccer practice, Ling runs home at the rate of 6 miles per hour. Her sister Akira, left soccer practice one half hour before Ling. She is walking the 4 miles home at 3 miles per hour. a. Sketch a distance-time graph that shows Ling's and Akira's walk home. b. When will Ling overtake Akira?
An octahedral die has eight sides numbered 1 through 8. Let x be a random variable that represents the sum when two such dice are rolled. Make a table and draw a histogram showing the probability distribution for x.
Sally and Janelle pay a total of $47.96 to camp for three nights at a state park. This Includes a one-time park entrance fee of$5 and 9% sales tax. They paid $12 per night to stay for three nights last year, and the one-time park entrance fee was$5. Sally is thinking about whether they want to stay at the park next year. Assume that the entrance fee and the sales tax rate will not change. a. If the price per night does not Increase from this year's price, how much will it cost to stay for five nights next year? b. If the park management quotes them a price of $87.20 for five nights next year, what is the increase in the price per night?
Miranda has her boat docked on the west side of Casper Point. She is boating over to the Casper marina. The distance traveled by Miranda over time can be modeled by the equation $$ d = -16t^2 + 66t $$ , where d is the number of feet she travels in t minutes. Graph this equation.