1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
il63 [147K]
3 years ago
5

How many 3-digit numbers can you write using only the digits 1 and 2?

Mathematics
1 answer:
defon3 years ago
4 0
For the first digit, you have two possible choices: 1 or 2. For *each* of those choices, you can choose 1 or 2 for the second digit in the number, and for each of *those*, you can choose 1 or 2 for the third digit of the number.

That’s 2 * 2 * 2 or 8 possible 3-digit numbers you can make with the digits 1 and 2.
You might be interested in
(17x + 21)<br> 123<br> need the answer asap
Greeley [361]
What are we trying to solve?
7 0
3 years ago
Read 2 more answers
If the sin 30° = , then the cos 60° = _____. 0, because the angles are complementary , because the angles are complementary , be
g100num [7]

Answer:

1 is the answer

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
jen deposits $9,500 into a bank account that pays her 4.5% simple interest for 5 years. How much interest will she earn over 5 y
slega [8]

Answer:

9927.5$

Step-by-step explanation:

4.5% 0f 9500 is 427.5$ which is growing in 5 years. thats the best explanation i can give.

5 0
3 years ago
Write an equation that you can use to find the number of refills Keith bought. A restaurant sells a coffee refill mug for $6.75.
Evgesh-ka [11]

Answer:

<h2> 6.75+1.25x=31.75</h2>

Step-by-step explanation:  

let x be the number of refils

also given is that the cost of one refill is $1.25

hence the total refil will be 1.25x

given that the cost of a mug is $6.75

6.75+1.25x=31.75

therefore  the expression that can be used to solve for the number of refills is

6.75+1.25x=31.75

 

7 0
3 years ago
{ (3,7), (-3,5), (0,4), (-1,5), (6,-2)}
Ede4ka [16]

Answer:

domain -3<x<6

range -2<y<7

it is a function

4 0
3 years ago
Read 2 more answers
Other questions:
  • Ryan invests a sum of money in a savings account with a fixed annual interest rate of 4.31% compounded 12 times per year. After
    11·1 answer
  • In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on th
    13·1 answer
  • The mayor of a town has proposed a plan for the annexation of an adjoining community. A political study took a sample of 1000 vo
    9·1 answer
  • 17. Higher Order Thinking Solve h - 156 = 34
    12·1 answer
  • What is the slope of the line below
    5·1 answer
  • Heeeeeeeeeeeelppppppppppppppppppppppppppppp
    14·1 answer
  • I need help plz and fast
    9·2 answers
  • The square pyramid has a base area of 625 square meters and a height of 30 meters. Find the volume. cubic meters
    9·1 answer
  • Find the largest degree of x that can be factored out of all terms<br> 9x and 45​
    14·1 answer
  • A train travels a total of 38 km at a constant speed of 90 km/h.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!