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How many ways can a pair of integers be selected from the integers 1 to 99 so that the difference between them is 10?
If the order of the pairs of numbers doesn't matter (that is the pairs (1, 11) and (11, 1) are considered the same) then there are 89 such pairs.If the order does matter (that is the pairs (1, 11) and (11, 1) are considered different) then there are 178 such pairs.There must be one number larger than the other.The smaller number must be at least 1, so the larger number must be at least 11.The larger number must be at most 99, so the smaller number must be at most 89.Thus, looking at the smaller numbers, it can be one of the numbers 1 to 89 - a total of 89 possibilities - each of which has a corresponding larger number.Therefore there are 89 combinations of 2 integers from the number 1-99 that have a difference of 10.If however, the order of the integers is important, then the smaller number can be the first number or second number, which means that there are twice as many possible pairs, giving 178 permutations of 2 integers from the numbers 1-99 that have a difference of 10.
How many feet are in 178 feet?
178 feet
How many squares would 178 square meters be?
178 900
How many miles is 178 kilometers?
Answer: 178 km = 110.604 mi.
How many feets are 178 cm?
178 centimeters = 5.839 feet.
How many gallons is 178 liters?
178 liters = 47.02 US gallons.
178 cm equals how many feet?
178 centimeters is 5.84 feet.
How many feet in 178 in?
178 inches is 14 feet and 10 inches.
How many inches are in 178 feet?
178 inches is 14.8333 feet.
How many stones is 178 pounds?
There are 12.71 stones in 178 pounds.
How many times can 25 go into 178?
178 ÷ 25 = 7 with remainder 3.
How many centimeters in 178 millimeters?
There are 10 millimetres in one centimetre. Therefore, 178 millimetres is equal to 178/10 = 17.8 centimetres.
