Complete question is;
How many 10 - digit numbers are there, such that the sum of the digits is divisible by 2?
Answer:
There are 4500000000 ten digit numbers whose sum is divisible by 2.
Step-by-step explanation:
Since we are dealing with 10 digit numbers, the first 10 digit number whose sum is divisible by 2 is; 1000000001.
While the last 10 digit number whose sum is divisible by 2 is 9999999999.
Now,to find how many 10 digit numbers whose sum are divisible by 2, we will simply divide the difference of both numbers by 2 and then add 1 to the answer. This is because subtracting the minimum from the maximum gives us the number of 10 digit numbers we have. Then dividing by 2 gives the number of ten digit numbers with sum divisible by 2 in between. Then adding 1 to the result to cover the number not included gives;
((9999999999 - 1000000001)/2) + 1 = 4500000000
Answer:
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Step-by-step explanation:
Answer:
student 1
Step-by-step explanation:
48x+56=8(6x+7)
41 necklaces can be made using 2017 beads where 49 beads are used to make 1 necklace.
The total number of beads for making jewelry with Yer = 2017
Beads require to make 1 necklace = 49 beads
The number of necklaces that can be made using 2017 beads when 49 beads are required to make 1 necklace will be:
Number of necklace = 2017 / 49
Number of necklace = 41.16
That is 41 necklaces can be made using 2017 beads where 49 beads are used to make 1 necklace.
Therefore, 41 necklaces can be made using 2017 beads where 49 beads are used to make 1 necklace.
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