Solve the linear system of equations using the linear combination method. 8a-4b=20

5a-8b=62

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a =

b =

Derrick's Dog Sitting $12 plus $5 per hour Darlene's Dog sitting $18 plus $3 per hour write and solve an equation to find the number of hours for which the total cost will be the same for the two services.

Denise Cho is a broadcast technician and earns $17.00 an hour with time-and-a-half for overtime. Last week, she worked 40 hours at regular pay, and some hours of overtime. Her total pay for the week was $839.38.

A company had a competition to see which team could load trucks at the loading dock the fastest. On day one, team one loaded 51⁄2 trucks. The leader of team three said her team could load 31⁄2 times that number when it was their turn to participate.

Which of the following expressions is correct? A: |-9| = |9| B: - |-9| = |-9| C: |-9| = - 9 D: - |9| = 9

8 to the power of 8 times 5 to the power of 8 simplify the expression

What is the equation of the line that is perpendicular to the given line and has an x-intercept of 6? A.) y = - x + 8 B.) y = - x + 6 C.) y = x - 8 D.) y = x - 6

How long does it take to make a train travel490 im if its at 35 im/h

Which list orders - 3.216, 5.34, - 3.62, - 1.8, 5.4 from greatest to least

To find a baseball pitcher's earned average (ERA), you can use the formula Ei=9r where E represents ERA, i represents the number of innings pitched, and r represents the number of earned runs allowed. Solve the equation for E.

What unit would you to measure the weigh if a chair