7:120 i think thats what its asking
Answer:
x=4 and y=4
Step-by-step explanation:
using simultaneous equations by elimination method
Answer:
28 units
Step-by-step explanation:
Since the perimeter of both triangles is same,
the sum of all sides of first triangle = sum of all sides of second triangle
or, 6x + 3 + 2x + 4x = 5x + 5x + 3x + 2
or, 12x + 4 = 13x + 2
or, 4-2 = 13x - 12x
or, 2 = x
Now,
Putting the value of x in the perimeter of first triangle,
12x + 4= 12* 2+ 4
= 28 units
To use the elimination method, you have to create variables that have the same coefficient, then you can eliminate them.
Answer:
x power 2 and -9 is the result
