This is how you set up a percent of error proportion:
<u>Amount of error</u> <u>x(Unknown percent)</u>
Actual value = 100(Percents are out of hundreds)
So if you fill it in, it becomes <u>4</u> <u>x
</u> 80 =100
Cross multiply, 400= 80x.
Solve.
x=5 so percent error is 5%<u>
</u>
Answer:
A rectangle with length 3 and width 2 has an area of 3%2A2=6 square units while a rectangle with length 6 and width 1 has an area of 6%2A1=6 square units.
Step-by-step explanation:
Answer:
45
Step-by-step explanation:
Divide 15 by 40 to get the percent and that tells you that its 0.375 once you have that you move the decimal 2 spots to the left to get 37.5%