mooza4880 mooza4880

01-07-2021
Mathematics

contestada

How many 2-digit numbers can you make without repeating the digits? Numbers like 34 not like 55.

80

81

83

84

Respuesta :

labeeb2 labeeb2

01-07-2021

Answer:

81.

Step-by-step explanation:

The 2 digit numbers without repeated digits is 81. There are 90 two-digit numbers in the decimal system. In 9 of them, both digits are the same number. So, there remain 81 without repetitions.

Answer Link

Otras preguntas

A carpenter has a board that is 8 feet long. He cuts one piece 3 1/2 feet and another piece 2 1/3 feet long. How much of the board is left?

At a train station, freight trains depart at a rate of 2 trains every 30 minutes and passenger trains depart at a rate of 1 train every 90 minutes. At this rate

A motif of the balcony scene is

A piston is filled with gas. When the pressure is increasing, what is happening to the volume? Assume that all other properties of the gas remain constant. a.

Why is vinegar used in food preservation?

The currency used in the United Kingdom is the euro . dollar. peso. pound.

70/9 as a mixed number

Which of the following provides the most evidence for the theory of plate tectonics?

14 is what percent of 56

how can ordinary people be special?