Which equation results from adding the equations in this system?

-6x+4y=-8

6x-12y=14

-16y=6

-8y=6

-8y=-22

-16y=-22

How many terms are in the expression 1/2 - 18y + 9z - 2

Mariya is solving the quadratic equation by completing the square. 4x2 - 20x 3 = 0 4x2 - 20x = - 3 a (x2 - 5x) = - 3 what is the value of a?

Mrs. Thomas bought a rectangular rug that was 2 ft long by 3 ft wide what is the area of the rug

Dale has measured a stick to be 122cm and plans to use it as a referent. Describe one advantage and one disadvantage of dales referent

A class is made up of 2 boys and 12 girls. Half of the girls wear glasses. A student is selected at random from the class. What is the probability that the student is a girl with glasses

People are entering a stadium at a steady rate of 40 people per minute. After 60 minutes there are 2500 people in the stadium. If no one left during the 60 minutes, how many people were in the stadium before the gates opened?

This is an angle having a measure greater than 90° and up to 180°

The cost of c of ham shandwhich at a deli varies directly with the number of sandwiches n if c=$54 when n is 9 what is the cost of snadwhiches when n is 3

The ratio of two numbers is 5:3. Their sum is 64. What is the smaller number?

Write each fracton as a decimal: 1. 7/15 2. 8/18 3. - 8/12 4. - 6/7 5. 3 15/44 6. - 2 5/22