An airplane is preparing to Anderson airport it is 39,900 feet above the ground and it is descending at a rate of 3100 hundred feet/min. at the same airport another plane is taking off and will ascend at the rate of 2600 ft./min. when will the two airplanes be at the same altitude and what altitude will it be

Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. kevin spins the spinner 180 times. kevin determines about how many times the spinner will land on red or green, and his work is shown below. -kevin has the formula reversed; it should be the total number of sections over the number of red or green sections. -kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections. -kevin should multiply by the number of sections in the spinner rather than the total number of spins. -kevin calculated the prediction correctly and did not make any mistakes.