Answer:

Step-by-step explanation:
√120 is irrational.
This is what is called a literal equation. Solve it for m just like you would solve any equation for x. Isolate the term with the variable you're looking for. Do this by subtracting 4cm from both sides to give you g - 4cm = -3m. Now we need to divide by -3 to get m alone:

. Or we could lose the negative on the 3 in the denominator like this:

and

. There you go! Any one of those last three would work. It just depends upon how your teacher wants you to express your answer.
Answer:
x=1, y=4
Step-by-step explanation:
x+y=5 - (1)
y=3x + 1 (2)
Sub (2) into (1)
x + (3x +1)=5
4x=5-1
x=4 ÷4
=1
Sub x=1 into (2)
y=3(1)+1
= 4