Two numbers cannot be proportional. You need at least two pairs ie 4 numbers.
You CAN'T determine whether two numbers are proportional, just by looking at one number from each set.
8/15 = 0.53 7/10 = 0.70 No they are not
7 and 13, yes 15, no.
All except 15
x + y = 15 x - y = 7
15
No, 8/17 and 7/10 are not proportional.
The prime numbers between 6 and 15 are: 7, 11, 13
The numbers are -8, and -7.
15 is composite number
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