The variable S is used to exemplify Sawyers age. Therefore S-6= Sister’s age. 3(S-6) is used to demonstrate that Sawyer is three times as old as his sister. When broken down it is equal to S=3S-18 where you will add 18 to both sides giving you S+18=3S. Then, you will subtract S from both sides giving you 2S=18 making your final answer 9. Sawyer is 9 years old now.
Using a^2-b^2 = (a-b)(a+b) you can factor the expression:
(3x^3-4y^3)(3x^3+4y^3)
The longer sides are 20 kilometers, and the shorter sides are 13 kilometers.
(Length times width equals 260, and 20 times 2 plus 13 times 2 is 66.)
Answer:
$113.40
Step-by-step explanation:
The dress is $180 subtracted by 30% ($54) and is now $126
$126 - 10% which is $12.60 and is now $113.40
A polygon with 3 sides is a triangle!
