Ok so it’s 6.93 or 7 if u wanna round it
It’s the a^2+b^2=c^2
Answer:
x=4/9, one solution
Step-by-step explanation:
Given: 2x+7x=4
Combine like terms: 9x=4
Divide by 9 on both sides to isolate the variable x: x=4/9
Answer:
5.5
Step-by-step explanation:
Firstly setup an equation to find the perimeter:
3x + 4x + 5x = 54, this is because perimeter is equal to sum of all side lengths
Then combine like terms:
12x = 54
Now use the division property of equality by dividing both sides by 12:
x = 4.5
So then, you will substitute the value of x for each value of the side lengths:
3(4.5) = 13.5 for AB, 4(4.5) = 18 for BC, and 5(4.5) = 22.5 for AC.
Hope this helps and let me know if you have any more questions!
