We know that
2l + 2w = 24
And:
l = 3w
By substitution:
2(3w) +2w = 24
6w + 2w = 24
8w = 24
w = 3 metres
l = 3 x 3 = 9 metres
Total cost = 24 x $25 = $600
Since the variable x has an invisible one next to it, which is 1x, it is 6x.
If you would like to know the solution to the equation (x - 2) * (x + 5) = 18, you can calculate this using the following steps:
(x - 2) * (x + 5<span>) = 18
</span>x^2 + 5x - 2x - 10 = 18
x^2 + 3x - 28 = 0
(x + 7) * (x - 4) = 0
1. x = - 7
2. x = 4
The correct result would be x = - 7.
Answer:
5 to 3
Step-by-step explanation:
