Answer:
1. if x + 5 = 12, then x = 7
:Subtraction property of equality
2. If x + y = 20, and y = 5, then x + 5 = 20.
<u>:Substitution property of equality</u>
3. If 2x3 = 11, then 11 = 2x - 3.
<u>:Symmetric property of equality</u>
If the cost of one DVD is $42.70, to find the price of two, multiply 42.70 by two. The price of two DVDs is $85.40.
Answer:
longitudinal profile depicts the changes in elevation as a function of distance
Step-by-step explanation:
Hope this helps :)
Answer:
158 ribbons even half of one still counts.
Step-by-step explanation:
Each side area = 54/6 sides = 9
one side is 3 feet so the volume is 3x3x3 = 27 square feet