Question

answer with explanation​

Answer 1

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Answer 2

Step-by-step explanation:

I’m going to take a shot at this considering we have the variables A and B, with A being undefined, B being 30 and the combination of A and B being 12. I assume this is an equation where you substitute values in, in order to end up with an answer for A.

A = ?

B = 30 days.

A + B = 12 Days.

Now subsituting the value of B into the equation in order to solve for A, since B is 30 we have:

A + 30 = 12

A = 12 - 30

A = -18

Now since you can’t have negative number of days, it would translate to:

A = 18

so A will take 18 days to complete its work

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