Question

Combine Like Terms (Basic, Decimals)May 20, 11:17:05 AM?A triangle has side lengths of (4.7u – 2.6) centimeters, (9.4u +9.1) centimeters,and (6.2v - 8.7) centimeters. Which expression represents the perimeter, incentimeters, of the triangle?20.6u - 2.50O 6.5 -2.50 + 14.1uSubmit AnswerO -2.50 + 18,5 + 2.1u0 -2.2 + 14.1u + 6.2v

Answer 1

Given side lengths:

(4.7u - 2.6)cm , (9.4u + 9.1)cm , (6.2v - 8.7)cm

The perimeter of a rectangle is the sum of the three sides:

`\begin{gathered} (4.7u\text{ - 2.6) + (9.4u + 9.1) + (6.2v - 8.7) } \\ =\text{ 4.7u + 9.4u + 6.2v - 2.6 + 9.1 - 8.7} \\ =\text{ }14.1u\text{ + 6.2v -2.2} \\ =\text{ -2.2 + 14.1u + 6.2v} \end{gathered}`

The correct answer is : -2.2 + 14.1u + 6.2v