Write an equation. Explain how to reason with the diagram to find the weight of a piece with a letter.

Explain how to reason with the equation to find the weight of a piece with a letter.
3.3: Connecting Diagrams to Equations and Solutions
Here are some balanced hangers. Each piece is labeled with its weight.

Four balanced hangers, A, B, C, and D.
For each diagram:

Write an equation.

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?