{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lesson 3.2 Quiz

Lesson 3.2 Quiz - How could you use substitution to find...

This preview shows page 1. Sign up to view the full content.

Lesson 2 Quiz Linear Systems Results of the quiz. 1. What steps can you use to solve the system using the method of elimination? CORRECT: Multiply 4 x + 5 y = 53 by 2 and multiply 7 x + 2 y = 59 by –5. Then add. 2. How can you rewrite the system to solve it using the method of elimination? CORRECT: 3. In a group of 42 adults and children who attended a ball game, there were twice as many children as adults. If a represents the number of adults, and c represents the number of children, then the following linear system models the numbers of adults and children who attended the game.
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: How could you use substitution to find the number of adults who attended the game? • CORRECT: Substitute 2 a for c in the equation a + c = 42. 4. Which of the following steps uses the elimination method to first solve this system for y ? • CORRECT: Multiply both sides of the equation 9 x + 4 y = 20 by –2 and then add. 5. How could you solve this system by substitution? • CORRECT: Substitute 6 for d into the equation 3 c + 5 d = 2. You got 5 out of 5 correct....
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online