I think of a number, multiply it by 3 and add 7. i get thr same answer if i multiply the number by 4 and subtract 12. find the number​

The number is 19.

Step-by-step explanation:

3n + 7 = 4n - 12

19 = n

The equivalent ratio to 1:5 is 2:10,3:15,4:20, etc.

Given that,

Here the equivalent ratio could be determined by measuring the common factor.

Like 2:10 = 1:5

3:15 = 1:5

4:20 = 1:5

Therefore we can conclude that the equivalent ratio to 1:5 is 2:10,3:15,4:20, etc.

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