They are alike because you are just doubling the number by 2
It’a the third , and can I have the brainliest too
Percentage error is calculated by
Percentage error = (estimate-real)/real*100%=(115-82.5)/82.5*100%=28.26%
An over-estimate gives a positive error percent, and an underestimate gives a negative error.
Also, dividing by the real value makes it possible to have more than 100% error.
For example, if real cost is $50, and estimated cost is $150, then error percent is (150-50)/50*100%=200%!
Mass = volume × density;
mass = 2.5g/mL x 15mL;
mass = 37.5g;
Multiply both numbers by the same number.
Example 17/20 = 34/40
I multiplied both numbers by 2!
<em><u>I hope this helps!</u></em>