318
You have two equations and two unknowns.
x+y = 38
x*y = 280
Rearranging the first one, y= 38-x. Substituting that into the second gives
x * (38-x) = 280
Multiplying that out, you're looking for the solution to the equation
-1x*x + 38x - 280 = 0.
The roots of that equation are 10 and 28, so there are your answers.
2*19=38
38
19 times 2 equals 38
2 times 19 equals 38
%rate = (38 ÷ 280) x 100% = 13.57%
Let's see. 8 goes into 28 3.5 times, so if you continued to do the math, you would find that it goes into 280 35 times.
38 x 5 = 190
30 times 38 = 1140 30 times 38 equals 1140.
1560 times 38 equals 106,080
38 x 100
x * -38 = 114 x = 114 ÷ -38 x = -3
9