Sadie computes the perimeter of a rectangle by adding the length, I, and width, w, and doubling this sum. Eric computes the perimeter of a rectangle by doubling the length, I, doubling the width, w, and adding the doubled amounts. Explain why Sadie and Eric always get the same answer, no matter what the length and width of the rectangle are. plz help i really need it I need to turn this in tomorrow. Help plz

Due to the distributive property the expression are the same.

Step-by-step explanation:

Sadie expression is "perimeter = 2*(length + width)", while Eric's is "perimeter = 2*length + 2*width". The value for both is always the same for any rectangle, because the expressions are the same due to the distributive property. To prove this we will expand Sadie's expression as shown below:

perimeter = 2*(length + width)

perimeter = 2*length + 2*width

Which is the same as Eric's.

answer: do you still need this?

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.