Answer:
x= 0, -1
Step-by-step explanation:
Let length of the hypotenuse = 3x and length of given leg be x feet.
then (3x)^2 = x^2 + 648
8x^2 = 648
x^2 = 81
so x = 9 and 3x = 27
Hypotenuse is 27 feet and the leg equals 9 feet.
To use the elimination method, you have to create variables that have the same coefficient, then you can eliminate them.
You have to isolate c
the answer is 15
Re read the question again just in case, try and put £25.50
But I got 25.5 too