The function y is equal to 60 over x relates y , the time in hours that it takes Michael to travel to his grandparents’ house, to x , his average speed in miles per hour. What does the number 60 in the function represent?
Sarah plans to sell homemade birdhouses at the local craft fair. She spent 90 dollars on new tools and estimates that she spends 6 dollars in materials for each birdhouse. Which rational function models the average cost per birdhouse, y , in dollars of building x birdhouses?
The function f of x is equal to the fraction with numerator 600 plus 2 x and denominator x yields the average cost in dollars for a company to produce x calendars. Which statement best fits the situation modeled by the function?
Frank joined a fitness club. He paid a 50 dollars registration fee, and dues are 12 dollars per month. Which expression can be used to find the average monthly cost of an x -month membership at the club?
The function y is equal to the fraction with numerator 16 comma 500 plus 1020 x and denominator x models y , the average annual cost in dollars of owning a car for x years. Which statement best explains why the graph of y is equal to the fraction with numerator 16 comma 500 plus 1020 x and denominator x should have a vertical asymptote at x is equal to 0 ?
The function f of x is equal to the fraction with numerator 80 comma 000 plus 0 point 2 x and denominator x yields the average cost in dollars for a company to produce x copies of a comic book. Which statement best fits the situation modeled by the function?
A pharmacist has 80 milliliters of a 25 percent saline solution. Which expression can be used to find the percentage concentration of the final solution if she adds x milliliters of a 10 percent saline solution?
Craig bought a treadmill for 400 dollars He estimates that the annual costs to maintain the machine will be 36 dollars Which rational function yields the average annual cost in dollars of owning the treadmill for x years?
The function f of x is equal to the fraction with numerator 30 plus 0 point 2 5 x and denominator x yields the average cost in dollars per cup of lemonade made by Lincoln at his lemonade stand when he makes x cups of lemonade. Which statement best fits the situation modeled by the function?
For a fixed amount of gas at a constant temperature, the volume of the gas is inversely proportional to its pressure. The function cap v is equal to the fraction with numerator 18 comma 000 and denominator cap p relates the volume in cubic inches and pressure in pounds per square inch of a gas. What is the volume when the pressure is 900 pounds per square inch?
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