The perimeter of a triangle with length of sides a, b and c:
P = a + b + c
a = 2, b = 5, c = 10x
Substitute:
P = 2 + 5 + 10x = 7 + 10x
<h3>Answer: 7 + 10x</h3>
Answer: 3 seconds
Step-by-step explanation:
Answer: x=\pi n,\:x=\frac{\pi }{4}+\pi n
Step-by-step explanation:
<span>It looks like I could substitute the x=2y-1. Into 2x+y=3
2(2y-1)+y=3
4y-2+y=3
5y=5
y=1
x=2(1)-1
x=1
</span><span> (1,1)
CHECK
2x+y=3
2(1)+(1)=3
2+1=3
3=3
Left hand side=Right hand side
Check other equation
x=2y-1
1=2(1)-1
1=1
</span><span>Therefore the solution is (1,1). Since the left hand side= right hand side in each equation</span>
