Tutors Answer Your Questions about Systems-of-equations (FREE)
Question 1172548: The homecoming dance at Liberty High School happened last Saturday. Many students bought tickets in advance for $5 each. Other students bought tickets at the door for $7 each. In all, 290 students attended the dance and $1790 was the total for all ticket sales. Find out how many students bought tickets in advance and how many bought tickets at the door.
Click here to see answer by ikleyn(52754)   |
Question 1172739: Your a manager in a company that produces rocket ships. Machine A and machine B both produce cockpits and propulsion systems. Machine A ran for 22 hours and produced 3 cockpits and 5 propulsion systems. Machine B ran for 44 hours and produced ed 6 cockpits and 10 propulsion systems. Assume both machines produce cockpits at the same rate and both produce propulsion. Systems at the same rate
Does the system have many solutions
Or yes it does machine A and machine B 4 hours to produce a cockpit and 2 hours to produce. A propulsion system
Or yes it takes machine A and machine B
2 hours to produce a cockpit and 4 hours to produce a propulsion system answer PLEASE
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 1172739: Your a manager in a company that produces rocket ships. Machine A and machine B both produce cockpits and propulsion systems. Machine A ran for 22 hours and produced 3 cockpits and 5 propulsion systems. Machine B ran for 44 hours and produced ed 6 cockpits and 10 propulsion systems. Assume both machines produce cockpits at the same rate and both produce propulsion. Systems at the same rate
Does the system have many solutions
Or yes it does machine A and machine B 4 hours to produce a cockpit and 2 hours to produce. A propulsion system
Or yes it takes machine A and machine B
2 hours to produce a cockpit and 4 hours to produce a propulsion system answer PLEASE
Click here to see answer by ikleyn(52754) |
Question 1173101: Brittney and Steven are selling candy for a school fundraiser. Customers can buy small boxes of candy and large boxes of candy. Brittney sold 3 large boxes and 7 small boxes of candy for a total of $33.75. Steven sold 8 large boxes and 11 small boxes of candy for a total of $67. What is the total cost if a customer buys 2 large boxes of candy?
Click here to see answer by Boreal(15235)  |
Question 1173362: A field goal is 3 points and the extra point is worth 1 point. In a recent season, Dan Bailey of the Minnesota Vikings made a total of 66 field goals and extra points for 124 points. Find the number of field goals and extra points that he made.
Click here to see answer by ikleyn(52754) |
Question 1173360: Solve using elimination. Write answer like (h,s) h for hobbies and recreation, s for soliloquies no spaces. Steve subscribed to 10 podcasts for a total of 340 minutes. He used his 2 favorite tags, Hobbies and Recreation and Soliloquies. Each of the Hobbies and Recreation lasted about 32 minutes. Each Soliloquies episode lasted 42 minutes. To how many of each tag did he subscribe?
Click here to see answer by Solver92311(821)  |
Question 1174010: A class of 195 students went on a field trip. They took 7 vehicles, some cars and some buses. Find the number of cars and the number of buses they took if each car holds 5 students and each bus holds 45 students.
Click here to see answer by ikleyn(52754) |
Question 1174035: At Elisa’s Printing Company LLC there are two kinds of printing presses. Model A which can print 70 books per day and Model B which can print 55 books per day. The company owns 14 total printing presses and this allows them to print 905 books per day. How many of each type of presses do they have?
Click here to see answer by ikleyn(52754) |
Question 1174034: All 231 students in the math club went on a field trip. Some students rode in vans which hold 7 students each and some students rode in buses which hold 25 students each. How many of each type of vehicle did they use if there were 15 vehicles total.
Click here to see answer by ikleyn(52754) |
Question 1174289: Earl solved the following system of equation using substitution.
x + y = 3
2x - 3y = 16
Earl's Solution
2(3-y)-=16
6-y-3y=16
6-4y=16
6-6-4y=16-6
4y=10
-4y=10
-4= -4
y=-2.5
x+(-2.5)=3
x=5.5
Unfortunately, he made a mistake. Locate his error
Click here to see answer by ewatrrr(24785)  |
Question 1174289: Earl solved the following system of equation using substitution.
x + y = 3
2x - 3y = 16
Earl's Solution
2(3-y)-=16
6-y-3y=16
6-4y=16
6-6-4y=16-6
4y=10
-4y=10
-4= -4
y=-2.5
x+(-2.5)=3
x=5.5
Unfortunately, he made a mistake. Locate his error
Click here to see answer by Boreal(15235) |
Question 1174289: Earl solved the following system of equation using substitution.
x + y = 3
2x - 3y = 16
Earl's Solution
2(3-y)-=16
6-y-3y=16
6-4y=16
6-6-4y=16-6
4y=10
-4y=10
-4= -4
y=-2.5
x+(-2.5)=3
x=5.5
Unfortunately, he made a mistake. Locate his error
Click here to see answer by MathTherapy(10549)  |
Question 1174289: Earl solved the following system of equation using substitution.
x + y = 3
2x - 3y = 16
Earl's Solution
2(3-y)-=16
6-y-3y=16
6-4y=16
6-6-4y=16-6
4y=10
-4y=10
-4= -4
y=-2.5
x+(-2.5)=3
x=5.5
Unfortunately, he made a mistake. Locate his error
Click here to see answer by greenestamps(13195)  |
Question 1174290: UNFINISHED
Mary and Richard worked as a team to solve the following problem.
The homecoming dance at Liberty High School happened last Saturday. Many students bought tickets in advance for $5 each. Other students bought tickets at the door for $7 each. In all, 290 students attended the dance and $1790 was the total for all ticket sales. Find out how many students bought tickets in advance and how many bought tickets at the door.
Mary decided to use a single variable (x), while Richard decided to use two (x and y). The students defined their variable(s) as shown below.
Mary: x = # of tickets purchased at the door
290 � x = # of tickets purchased in advance
Richard: x = # of tickets purchased at the door
y = # of tickets purchased in advance
As a team, help Mary write a single mathematical equation and help Richard write a system of equations to solve the problem. Solve the problem using each student�s method. Use a Guess and Check table if needed. How can you tell that you are correct?
Click here to see answer by Boreal(15235) |
Question 1174286: Edda has a poodle that weighs 7 pounds and gains 1 pound per year.
Walden has a young sheltie that weighs 2 pounds and gains 1 pound every 6 months.
Edda and Walden are curious to know when their two dogs will weigh the same amount.
Click here to see answer by Boreal(15235) |
Question 1174287: Alex dumped out his piggy bank and there were only nickels, dimes, and quarters.
There were three times as many dimes as nickels, and 40 more quarters than nickels.
If the total amount of money was $17.20, how many of each type of coin were there?
Click here to see answer by Boreal(15235) |
Question 1174287: Alex dumped out his piggy bank and there were only nickels, dimes, and quarters.
There were three times as many dimes as nickels, and 40 more quarters than nickels.
If the total amount of money was $17.20, how many of each type of coin were there?
Click here to see answer by ewatrrr(24785) |
Question 1175279: The “int()” operator in your calculator is the “greatest integer function.” It returns the
greatest integer less than or equal to the operand and is written using square brackets: [x]
or [[x]]. For example, it would give back 82 for [[82.976]].
In Smalltown, AZ the students receive grade points as follows:
4.0 for any grade 90% or higher. [90,100)
3.0 for any grade 80% or higher. [80,90)
2.0 for any grade 70% or higher. [70,80)
1.0 for any grade 60% or higher. [60,70)
(Notice: students NEVER fail! And students never get 100%!)
A. Write a function that correctly returns grade points for gradesfrom 60% to 100%. (78.45
should give a 2.0). Is your function even, odd, or neither?
Click here to see answer by Theo(13342)  |
Question 1175809: Find an ordered triple (x,y,z) of real numbers satisfying x<= y<= z and the system of equations
sqrt{x} + sqrt{y} + sqrt{z} = 10,
x + y + z = 38,
sqrt{xy} + sqrt{xz} + sqrt{yz}= 30,
or, if there is no such triple, enter the word "none" as your answer.
Click here to see answer by ikleyn(52754) |
Question 1175809: Find an ordered triple (x,y,z) of real numbers satisfying x<= y<= z and the system of equations
sqrt{x} + sqrt{y} + sqrt{z} = 10,
x + y + z = 38,
sqrt{xy} + sqrt{xz} + sqrt{yz}= 30,
or, if there is no such triple, enter the word "none" as your answer.
Click here to see answer by Alan3354(69443)  |
Question 1018336: Dan's Mobile Window Tinting tints car windows. Dan has determined his company's weekly revenue and cost functions as follows:
R(w) = 37w + 8
C(w) = 27w + 688
where R(w) represents the weekly revenue in dollars from tinting w windows and C(w) represents the weekly cost in dollars to tint w windows. Find the number of windows Dan must tint each week to break even or make a profit.
Dan must tint at least______windows to break even or make a profit.
Click here to see answer by CubeyThePenguin(3113)  |
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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, 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
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