Simply put multiply 15 by 40 to get the square footage. This would be 600 square feet.
18
It is: 40/10 = 15/100 = 4.15
60
Substitution method: from first equation y = 5x - 8. In the second equation this gives 25x - 5(5x - 8) = 32 ie 25x - 25x + 40 = 32 ie 40 = 32 which is not possible, so the system has no solution. Multiplication method: first equation times 5 gives 25x - 5y = 40, but second equation gives 32 as the value of the identical expression. No solution.
-55
-575
40 + 15% = 40 x (1 + (15/100)) = 40 x 1.15 = 46
Simply put multiply 15 by 40 to get the square footage. This would be 600 square feet.
18
15
It is: 40/10 = 15/100 = 4.15
60
Substitution method: from first equation y = 5x - 8. In the second equation this gives 25x - 5(5x - 8) = 32 ie 25x - 25x + 40 = 32 ie 40 = 32 which is not possible, so the system has no solution. Multiplication method: first equation times 5 gives 25x - 5y = 40, but second equation gives 32 as the value of the identical expression. No solution.
25+15=40+9=49
40
600 square feet.