3x - 2y = 10

5x + y = 4

When solving this system of equations by elimination, which could be the resulting equation when a variable has been eliminated?

A)

13x = 18

B)

-7x = 2

C)

-7y = 62

D)

8x - y = 14

What two ratios are equivalent to 6: 10

Evaluate BD fo A = 5, B = - 2, C = 4, and D = - 6. -12 -8 8 12

Georges asked five of his friends how long they studied for the last math test and what grade they received. He found a linear regression equation for the data to be y = 9.6x + 65.8. What does the 65.8 mean in the context of this equation?

Jamie paid $ 2.50 in library fines using only nickels and dimes. He used more nickles then dimes. How many of each coin did Jaime use to pay the fine

The enrollment at the 21st Century High School increased from 700 students to 1,200 students over a period of 5 years. What is the percent increase in enrollment? Round off to the nearest percent.

5/8 9/16 1/4 3/8 from least to greatest

Sandy plays tennis once every 6 six days. Jim plays once every 8 eight days. If they both played tennis today, in how many days will they play on the same day again?

Solve & Discuss It! For every 4 adults at the beach one afternoon, there were 3 children. How many children were at the beach if there were 8, 12, 16, or 20 adults at the beach? 16 1.20 Number of Adults 4 Number of Children

At a benefit concert, thirteen bands have volunteered to perform but there is only enough time for seven of the bands to play. How many lineups are possible?

Whenever you sign a lease for an apartment, you typically have to pay a security deposit before you even move in; this is in case something happens while you care occupying the apartment and repairs have to be made.