A qwerty keyboard is a standard keyboard. You may have used one to type your question. A qwerty keyboard has the letters Q W E R T and Y all in a row on the left side of the keyboard, typed by your left hand.
They make computer keyboard trays which are similar to to keyboard stands but they pull out from the desk or cart that the computer sits on. The computer keyboard stand is available but at a cost about $500.
500 m means 500 meters
100 + 300 + 500 + 500 + 600 = 2000. Then divide by 5 to get 400. The mean of these five numbers is 400.
If you mean 4/5 of 500 then it is 400
If you mean 3/4 of 500 then it is 375
500 Sheets in a Ream
The mean (average) of 250 and 500 is 375. ((250+500)/2)
500 = D in Roman Numerals
If by 500 you mean 500 cents then : 50 dimes or 100 nickels or 20 quarters. If you mean 500 dollars then: 5,000 dimes or 10,000 nickels or 2,000 quarters.
"D" in Roman Numerals equals 500.
The Indy 500
if you are talking about water then 500 grams of water is 500 ml of water. I hope this is what you mean.