Private colleges and universities rely on money contributed by individuals and corporations for their operating expenses. Much o
f this money is put into a fund called an endowment, and the college spends only the interest earned by the fund. A recent survey of 8 private colleges in the United States revealed the following endowments (in millions of dollars): 60.2, 47.0, 235.1, 490.0, 122.6, 177.5, 95.4, and 220.0. What value will be used as the point estimate for the mean endowment of all private colleges in the United States?
The truck can cover 145 miles in 2.5 hours, so the speed of the truck is 145÷2.5=58 miles per hour the car's speed is 1.5 times faster: 58×1.5=87 miles per hour suppose in x hours they will meet: distance covered by truck in x hour: 58x distance covered by car in x hour: 87x total distance: 145 miles 58x+87x=145 x=1
