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How high is one million dollars in one dollar bills If the stack of 100 one dollar bills is one inch?
First we need to see how many stacks of $100 dollar bills go in $1 million. So $1000000/100 = 10000 stacks. If each stack is 1 inch then the pile will be 10000 inches high. Since 1 foot = 12 inches this will be 833.3 feet high (1 decimal place)
If you can see a plane flying at 36000 feet but it is low over the horizon how far is the plane from the observer?
That depends on the angle of elevation
When you cannot see 100 feet or more you need to slow down to no more than 30 mph?
Or get your eyes tested!
How do you get the cubic feet of dirt is needed to fill a hole that is 20 feet wide and 15 feet long and 4 inches deep?
This problem gets easy quickly if you put everything in the same units. When you see 4 inches, think of one third of a foot. Fifteen feet times a third of a foot gives five square feet. Multiply 5 by 20, 100 cubic feet. If you are going to get the dirt by digging it from compacted soil, get 100 cubic feet. If you are getting loose dirt, better get 120 cubic feet - it will settle !
If during the last 100 feet of approaching a railroad crossing you cannot see the track for at least 400 feet in both directions you may not cross the tracks at a speed faster than MPH.?
You may not cross the tracks at a speed faster of 15 MPH. That is the speed allowed if you cannot see the track for at least 400 feet in both directions.
