Solve each system of equations algebraically

2x-y=9

3x+4y=-14

Ian gets $9 for each hour he works and $10 for each day he works. To find out how much he makes in a day, he made the equation y=9x+10x, where x is the number of hours he works. Explain why Ian's equation will not tell him he makes in a day.

Out of 245 racers who started the Eugene marathon, 203 completed the race, 38 gave up, and 4 were disqualified. What percentage of racers did not complete the marathon?

The perimeter of a rectangle is 62m. find the length of its sides if it is known that the area of the rectangle is 1980000 cm².

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Consider the graph of the quadratic function y = 2x2 - 4x + 2. How many zeros does the function have? ob 6 2 -2 2 -2

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sheila went to court 12 times a month for the first year. for the next 10 years she went to court twice a month. for the last year she went to court three times a month. how many times didnshe go to court in all in the twelve years

A second number is 5 less than a first number. a third number is three times the first number. if the sum of the three numbers is 555, find the numbers. (a) 110 / 105 / 330 (b) 105 / 100 / 315 (c) 125 / 120 / 375 (d) 112 / 107 / 336

the combined enrollment in the three grades at Jefferson Middle School is 977. there are 356 students in the 7th grade 365 in the 8th grade write and solve an equation to find how many students are in the ninth grade find an equation and a solution

The sum of three numbers is 185 The second number is 5 times the first. The third number is 13 less than the second. What is the second number?