Ms. johnston's students counted by fives. the first person said, "five." the next said, "ten"; the next "15." they went all the way up to 100. how many students counted to get to 100? bobby said, "50." when asked how he knew, he said, "because 5 is half of 10, and 50 is the same number as 5, just with a 0, and 10 is the same as 100 just with another 0."

how are you going to respond to bobby? post your response by wednesday. reply you other group members by sunday - you agree with their approach to bobby? how does it compare to your answer?

An airplane consumes fuel at a constant rate while flying through clear skies, and it consumes fuel at a rate of 64 gallons per minute while flying through rain clouds. let c represent the number of minutes the plane can fly through clear skies and r represent the number of minutes the plane can fly through rain clouds without consuming all of its fuel. 56c+64r < 900056c+64r< 9000 according to the inequality, at what rate does the airplane consume fuel while flying through clear skies, and how much fuel does it have before takeoff? the airplane consumes fuel at a rate of gallons per minute while flying through clear skies, and it has gallons of fuel before takeoff. does the airplane have enough fuel to fly for 60 minutes through clear skies and 90 minutes through rain clouds?