It is -72 lol. that's pretty basic you know
Answer:
The answer is correct x =6.8, if she made an error, it might have been the steps she took.
Step-by-step explanation:
5.4 + x = 12.2
subtract 5.4 from both sides to put x terms on the left hand side, numerical number terms on the right hand side
5.4 - 5.4 + x = 12.2 - 5.4
x = 6.8
Answer:
r = (x - 10m)/w
Step-by-step explanation:
Isolate the variable, r. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
First, subtract 10m from both sides of the equation:
rw + 10m (-10m) = x (-10m)
rw = x - 10m
Next, divide w from both sides:
(rw)/w = (x - 10m)/w
r = (x - 10m)/w
r = (x - 10m)/w is your answer.
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Since 5•x=5x, which means that the large side is x times larger, x•x should equal 4.
If x^2=4,x=2
so x=2
