Answer: X =5/2, 15/2 x=2.5, 7.5
Step-by-step explanation:
Pythagorean theorem, a^2 + b^2 = c^2
5 squared is 25, 8 squared is 64, square root of 89 is 9.43 thus the hypotenuse is 9.43, correct me if I'm wrong but that is what I got
First make 20 into a fraction, then solve; 3/5 · 20/1. 60/5 = 12. Hope that helps!
Answer:
16 nickels
Step-by-step explanation:
I just divided 32 by 2 I don't know if its completely right though
Answer:
4(x - 1) = 4x - 4
3x + 6 = 3(x + 2)
Step-by-step explanation:
The first equation is

We simplify to get;

This is not true, therefore this equation has no solution.
The second equation is

Combine like terms:



This has a unique solution.
The 3rd equation is

Group similar terms:

The 4th equation is :


This is always true. The equation has infinite solution.
The 5th equation is:

This also has infinite solution
The 6th equation is

It has a unique solution.