Answer:
The percent error in Isabel's measurement is 12.5%.
Step-by-step explanation:
Given:
Isabel thinks she has space for a 45 inch wide bookcase it turns out she only has space for a 40 inch wide bookcase.
Now, to find the percent error in Isabel's measurement.
Measurement she thinks = 45 inch.
The actual measurement = 40 inch.
So, the error in measurement = [tex]45-40=5\ inch.[/tex]
Now, to get the percent error of the measurement:
[tex]\frac{5}{40} \times 100[/tex]
[tex]=\frac{500}{40}[/tex]
[tex]=12.5\%.[/tex]
Therefore, the percent error in Isabel's measurement is 12.5%.
