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Question 1062305: Estimate the solution of the linear system graphically. Then check the solution algebraically ( 3 different problems.)
y= -6
x= 6
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2x - 3y =9
x= -3
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5x + 4y = 16
y= -16
Click here to see answer by Boreal(15235)  |
Question 1062940: The table lists data regarding the average salaries of several professional athletes in the years 1991 and 2001.
a) Use the data points to find a linear function that fits the data.
b) Use the function to predict the average salary in 2005 and 2010.
Year Average Salary
1991 $271,000
2001 $1,390,000
Click here to see answer by Fombitz(32388)  |
Question 1063041: 1. A boy's age is 10 and his father's is 37. In how many years' time will the father's age be twice as old as his son?
2. Daniel's age is half of David's, and David's age is four times of Salum's now. If in two years' time the sum of their ages will be 55 years, find David's age after four years.
Click here to see answer by josmiceli(19441)  |
Question 1063095: Two students are going to the store to buy school supplies. One of the students buys 2 packs of pencils and 3 packs of pens for $8.25. Her friend purchases 5 packs of pencils and 2 packs of pens for $11. What is the cost of 1 pack of pencils and 1 pack of pens?
Click here to see answer by Boreal(15235)  |
Question 1063085: How does the slope of the line compare to the rate of change when the slope is -100\1 and the rate of change is 60\1? Libby is driving from st Louis to Chichicago, how long does it take to to get there the the ordered pairs of (1,240)(2,180)
Click here to see answer by Fombitz(32388)  |
Question 1063228: Write four linear equations that would have the following properties:
1) A standard form equation with a positive slope and a negative y-intercept.
2) A slope-intercept form equation with a negative slope and y-intercept of 0.
3) A vertical line.
4) A horizontal line.
Click here to see answer by stanbon(75887) |
Question 1063287: The line models the cost of renting a bike. It costs $2 per hour plus a $2 deposit. Write an equation in slope-intercept form for the line where x is the number of hours a bike is rented and y is the total cost of renting a bike. How much does it cost to rent a bike for 4 hours?
Click here to see answer by josmiceli(19441)  |
Question 1063260: Please help me solve this,with a cardboard sheet,prepare a graphed paper of 1cm square. On the graphed paper show a scale of 2cm to represent 1unit on the x-axis and 2cm to represent 5units on the y-axis .hence draw the graph of y =2x + 1,with the range of values of -33
Click here to see answer by josmiceli(19441)  |
Question 1063378: The sum of two numbers is 19, and their difference is 1. Let x be the larger number and y be the smaller number.
(a) Write the system of equations for the problem.
(b) Find the unknown numbers by solving the system of equations graphically.
Click here to see answer by ikleyn(52780)  |
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 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