72, 36, 144
its skip a number times 2 times two
then the number you skipped, times two to get the one after the next one then times 3 then so on.
We will say that d = 1 dozen. and y = cost
we know that 3 dozen is 48. so
3d = 48.
to get the cost of 1d, we have to get the 3 to change into a 1. the only way to do this is to divide 3 by 3. if we divided the left side by 3 we must also do the right so:
3d = 48
1d = 16
so 1 dozen = 16
to change 3d into 9d we have to multiply by 3. we again have to do this to both sides. so:
3d = 48
9d = 144
The answer would be the following:
9 x - 4 = 4x + 16
Answer:
40.25 I guess
Step-by-step explanation:
Simply divide with your calculator
18049/14 ≈ 1289.214
≈ 1289.214
