Write a number that has four digits with the same number in all places, such as 4,444. Circle the digit with the greatest value.
Underline the digit with the least value. Explain.
2 answers:
Answer:
5555
Step-by-step explanation:
Here number can be many like: 1111, 2222, 3333, 4444, 5555, 6666, 7777, 8888, 9999.
Here I take number 5555
The Number that has the greatest value is the first number from left since it is the thousandth value of a number.
The number that has the least value is the last number from left since it is the tenth value of a number.
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Answer:
40, 42 and 44
Step-by-step explanation:
Mark these even consecutive integers as (2n-2), 2n and (2n+2)
Note that since they are integers, n > 0 and 2n is always even
Writing the equation
(2n-2) * 2n = 38 * (2n+2) + 8
// divide both sides by 2
(2n-2) * n = 19 * (2n+2) + 4
- 2n = 38n + 38 + 4
- 2n - 38n - 38 - 4 = 0
- 40n - 42 = 0
// divide both sides by 2
<u /> - 20n - 21 = 0
// rewrite the equation
<u></u> + n - 21n - 21 = 0
n * (n+1) - 21n - 21 = 0
n * (n+1) - 21 * (n+1) = 0
(n+1) * (n-21) = 0
// separate the two possible cases
n + 1 = 0 and n - 21 = 0
n = -1 n = 21
Note that here n has to be an integer, so case n = -1 can't be a solution. Therefore we use n = 21
Calculating the consecutive even integers
2n - 2 = 2 * 21 - 2 = 40
2n = 2 * 21 = 42
2n + 2 = 2 * 21 + 2 = 44