Monday

July 28, 2014

July 28, 2014

Posted by **mag** on Monday, April 29, 2013 at 7:30pm.

- algebra -
**Henry**, Tuesday, April 30, 2013 at 8:33pmX 10-point questions.

Y 5-point questions.

Eq1: X + Y = 21 Questions

Eq2: 10x + 5y = 200 Points.

Multiply Eq1 by -5 and add Eq1 and Eq2:

-5x - 5y = -105

10x + 5y = 200

Solution set: (X,Y) = (19,2).

5x = 95

X = 19

In Eq1, replace x with 19:

19 + y = 21

Y = 2.

**Related Questions**

Algebra - An Algebra I test contains 30 questions. Some of the questions are ...

8th Grade Algebra - 1) An exam will have 20 questions worth a total of 100 ...

math help - I need help solving this math problem, please: Problem: Angela's ...

Math - I need help solving this math problem, please: Problem: Angela's math ...

Algebra - A history test is to have 20 questions in which some are multiple ...

algebra - In a college, some courses contribute more towards an overall GPA than...

math - Mia is approaching her goal of 119 points for the video game. She wants ...

algebra 2 - Jeremy and Noor are playing a game where they each draw a marble ...

Algebra - pam scored 78 on a test that had 4 fill-in questions worth 7 points ...

Algebra - you are about to take a test that contain questions of type A worth 4 ...