Write a system of equations to model each situation. Then, identify a solution. On Sunday, Bonnie ran a 20-mile race in 2.3 hours. The route for the race goes over hills, and she knows she can run 8 minutes per mile uphill and 6.5 minutes per mile downhill. How long did she spend running uphill and downhill?

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

Which of the following expressions is equal to 2x^2+8