emily5400
20.03.2020 •
Mathematics
I NEED help with a math problem.
The problem is: If I’m thinking about a number which isn’t larger than 150. If you take away 5, you get a number that’s divisible with 13. If u take away 11 you get a number that’s divisible with 14. Which number am I thinking about?
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Ответ:
109
Step-by-step explanation:
You can brute-force this:
Candidate numbers that are divisable by 13 if you take away 5: 18 , 31 , 44 , 57 , 70 , 83 , 96 , 109 , 122 , 135 , 148
Candidate numbers that are divisable by 14 if you take away 11: 25 , 39 , 53 , 67 , 81 , 95 , 109 , 123 , 137
Only 109 is in both lists.
Ответ:
109
Step-by-step explanation:
a) x - 5 = 13 x n x = 13n + 5
b) x - 11 = 14 x m x = 14m + 11
13n + 5 = 14m + 11
13n = 14m + 6
n = (14m + 6) / 13 means 14m + 6 is the multiple of 13
14m + 6 could be 13 , 26, 39, 52, 65, 78, 91, 104, 117
if m = 1 , 2 3 4 5 6 7
14m + 6 will be 20 34 48 62 76 90 104
m = 7
n = 8
x = 109
Ответ:
0.39, 1/2, 0.6, and 2/3
Step-by-step explanation: