The percent error is calculated by the formula Absolute Value of (Error - Actual / Actual then times 100).
In this case the Error value was 76, and the Actual was 80.
So, set up the expression
I(76 - 80)/80 x 100I
I-4/80 x 100I
I-400/80I
I-5I
5
The percent error was 5 percent, since that was how much her estimation differed from the actual amount.
<h2><u>5 percent</u></h2>
I don't see any answer choices, but because it already gives you x and y, all you have to do is plug them into the equation.
-(5)-(6)+z=0
combine like terms
-11 + z = 0
add 11 to both sides
z = 11 is your answer
Answer:
9c+5.9d−7.9
Step-by-step explanation:
hope this helps!
Excuse me, but do you mean valuable...?
