Lesson Example Discussion Quiz: Class Homework |
Quiz Discussion |
Title: Linear Equations with Two Variables |
Grade: 1400-a Lesson: S1-L2 |
Explanation: Let us discuss a few questions on this topic and review the answers to every question. |
Quiz: Discussion in Class
Problem Id | Problem | Options |
---|---|---|
Steps 1 |
A machine makes large or small boxes, one at a time, for 700 minutes each day. It takes the machine 10 minutes to make a large box or 5 minutes to make a small box. Which equation represents the possible number of large, x, and small, y boxes the machine can make each day? |
A) ( x + y )( 10 + 5 ) = 700 B) 5x + 10y = 700 C) ( 10 + x )( 5 + y ) = 700 D) 10x + 5y = 700 |
Steps 2 |
Solve the following system of equations: |
A) \$x = 2/3\$ and \$y = 5/6\$ B) \$x = 3/2\$ and \$y = 1/6\$ C) \$x = 2/3\$ and \$y = - 5/6\$ D) \$x = - 3/2\$ and \$y = 1/6\$ |
Steps 3 |
A teacher is grading two assignments that each had to be a specific length: research papers and short stories. Each research paper has 5 more pages than each short story. How many pages are in a research paper if 7 research papers and 5 short stories have a total of 275 pages? |
A) 22 B) 25 C) 26 D) 20 |
Steps 4 |
If 3x + 2y = 15 and x + y= 10, what is the value of y? |
A) 15 B) - 15 C) 5 D) - 5 |
Steps 5 |
Find the values of x and y that make both equations true: |
A) \$x = 29/14\$ and \$y = 9/7\$ B) \$x = 29/7\$ and \$y = 9/14\$ C) \$x = 28/14\$ and \$y = 8/7\$ D) \$x = 28/7\$ and \$y = 9/14\$ |
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