Answer:
x = 20
Step-by-step explanation:
Perimeter = Sum of all sides
Perimeter = (x+4)+(4x)+10x-(10)
Where Perimeter = 294 in.
294 = 15x-6
15x = 294+6
15x = 300
Dividing both sides by 15
=> x = 20
Ok so,
15x-6=your perimeter
15x-6=294
15x=300
300 divided by 15= 20
so x=20
substitute in your values and you should have an answer :)
