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Question 1011835: Marina has a total of 21 coins in dimes and quarters. She had two times as many dimes as quarters
a) define the variables
b) state the system of equations that model this situation
c) determine how many dimes and quarters marina has
d) how much money does marina have
Click here to see answer by stanbon(75887)

Question 1012084: Every 21 days Janice visits her grandma and every 29 days she visits her grandpa, how many days before she visits both grandparents on the same day?
Click here to see answer by josgarithmetic(39617)

Question 1012234: a pyrotechnician plans for two fireworks to explode together at the same height in the air. they travels at speeds shown at the right. firework b is launched 0.25 s before firework a. how many seconds after firework b launches will both fireworks explode
Firework A 220 ft/s
Firework B 200 ft/s
Click here to see answer by ValorousDawn(53)

Question 1012365: You solved a linear system and got the equation -6 = 0. How many solutions does the system of equations have? (Please Explain)

A. No solution
B. Infinitely many solutions
C. Exactly 1 solution
D. 2 solutions
Click here to see answer by rothauserc(4718)

Question 1012550: find area of the triangle constructed by the lines5x+7y=35,4x+3y=12and x axis
Click here to see answer by Alan3354(69443)

Question 1012550: find area of the triangle constructed by the lines5x+7y=35,4x+3y=12and x axis
Click here to see answer by macston(5194)

Question 1012586: 3x-4y=6
5x+3y=10
Click here to see answer by Fombitz(32388)

Question 1012588: my first question is 4x + 3y = 5 6x - 4y = -18
my second question is -12x - 2y = 7 18x + 3y = -18
Click here to see answer by macston(5194)

Question 1012627: y+3=1/4(x+4) thank you
Click here to see answer by addingup(3677)

Question 1012627: y+3=1/4(x+4) thank you
Click here to see answer by MathTherapy(10552)

Question 1012715: y=-1/3x+2/3
y=7/3x+2/3

Click here to see answer by Boreal(15235)

Question 1012922: The sum of two numbers is 73. when the smaller number is subtracted from twice the greater number the result is 50. find the numbers
Click here to see answer by fractalier(6550)

Question 1012921: Olivia has $30 more than Carl. if they each had $7 less, the sum of the funds would equal the amount that olivia has now. how much money does each have now........ please show steps!!
Click here to see answer by Boreal(15235)

Question 1012924: The side of a square house is 24 feet long and the house is located on a lot which is 50 feet longer than it is wide. The perimeter of the lot is 20 feet more than five times the perimeter of the house. find the length of the lot.
Click here to see answer by fractalier(6550)

Question 1013124: An ice cream parlor made $200. They sold cups for $0.60 and cones for $0.75. They sold 164 cups and cones in total. How much cups did they sell? How many cones did they sell?

Click here to see answer by josgarithmetic(39617)

Question 1013130: 0.60x+$2y=$200
x+y=172
Please explain your steps. I don't know how to solve systems of linear equations, so please explain for whatever method you chose.
Click here to see answer by josgarithmetic(39617)

Question 1013138: $0.60x+$2y=$200
x+y=178
Please explain how to solve a system of linear equations for whatever method you chose. I am new to this.
Thanks!
Click here to see answer by josgarithmetic(39617)

Question 1013141: How do you write Linear Equations in Standard Form? Example: (3,-4),0
Click here to see answer by fractalier(6550)

Question 1013199: Pure acid is to be added to a 10% acid solution to obtain 33 L of a 40% acid solution.
___ L of pure acid solution and ___ L of 10% acid solution.

Click here to see answer by ikleyn(52785)

Question 1013203: At a concession stand, seven hot dogs and four hamburgers cost $18.25; four hot dogs and seven hamburgers cost $17.50. Find the cost of one hot dog and the cost of one hamburger.
What is the cost of one hot dog?
$___
What is the cost of hamburger?
$___
Click here to see answer by ikleyn(52785)

Question 1013220: The sum of two integers is 51.the larger integer is 3 more than twice the smaller integer.find the integers.

Click here to see answer by satyareddy22(84)

Question 1001311: find the solution set of y=7x-12 and 4x-2y=34 using elimination, substitution and graphical method.
Click here to see answer by satyareddy22(84)

Question 1013264: Hi could you please help me? This is the question: What is the equation of a line that is parallel to the line that is given by the equation x = -4?
If you could explain how to do it it would be nice so that i can answer others.
I was thinking that it was y = x-4 but im not too sure
Thanks!
Click here to see answer by fractalier(6550)

Question 1013268: I am bad at doing linear equations so i need help with a few homework peoblems. What is the equation of a line that goes through the point (4, 2) and is parallel to the line given by the equation y = 2x + 6?
Thanks for the help!
Click here to see answer by macston(5194)

Question 1013391: If a plane can travel 490 miles per hour with the wind and 410 miles per hour against the wind, find the speed of the plane in still air.
What is the speed of the plane in still air?
___ miles per hour

Click here to see answer by josgarithmetic(39617)

Question 1013385: Pure acid is to be added to a 10% acid solution to obtain 90 L of a 20% acid solution.
What amounts of each should be used?
___ L of pure acid solution and ___ L of 10% acid solution.

Click here to see answer by josgarithmetic(39617)

Question 1013485: What is the answer for 17(C+d)
Click here to see answer by Alan3354(69443)

Question 1013477: If I save 10,000 for 5 years at 9% compounding daily what would be balance in 5 years
Click here to see answer by Alan3354(69443)

Question 1013477: If I save 10,000 for 5 years at 9% compounding daily what would be balance in 5 years
Click here to see answer by fractalier(6550)

Question 1013401: A few years ago, a total of 2693 thousand people lived in the metropolitan areas of Las Vegas, Nevada, and Sacremento, California. Sacremento had 285 thousand more residents than Las Vegas. What was the population of each metropolitan area?
What was the population of the Sacremento area?
___ thousand
What was the population of the Las Vegas area?
___ thousand
Click here to see answer by macston(5194)

Question 1013533: I did this home work but my teacher said it's wrong here is how I did it 17(C+d)
(17�c)+(17�d) =17c+17d=34cd I don't understand
Click here to see answer by fractalier(6550)

Question 1013545: What is the answer for 31(a+b+C)
Click here to see answer by Alan3354(69443)

Question 1013618: Explain in words how to write an equation that is part one: parallel and then also part two: perpendicular to the equation y=2/3x-4 passing through the point (-2,-5). Write your answer in standard form.
Click here to see answer by josgarithmetic(39617)

Question 1013657: What is a equation whos line is paralell to y = 2/3x + 4/7?
Thankyou so much!
Click here to see answer by fractalier(6550)

Question 1013659: Hi could you please show me how i do one of these so i know how to do the others? THanks in advanced. The graphs of each group of equations have at least one characteristic in common. Name the
characteristic(s):
y=x, y=3x, y=5x

Click here to see answer by Alan3354(69443)

Question 1013661: The graphs of each group of equations have at least one characteristic in common. Name the
characteristic(s)
2x-4y=12, 3y+2x=-2, x+y=0
Click here to see answer by stanbon(75887)

Question 1013660: The graphs of each group of equations have at least one characteristic in common. Name the
characteristic(s)
2y=6x, 4y-12x=0, 3x-y=0
Click here to see answer by stanbon(75887)

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, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515