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Tutors Answer Your Questions about Linear-systems (FREE)
Question 64031This question is from textbook Algebra 1
: In section 3-8. I need to know how to work out the problems. The computer will give the answers, but that doesn't help me learn. For example Number 15 page 168
y= mx+b, for m
I do not understand this at all. Can you help me? Please
Nicole 8th gradeThis question is from textbook Algebra 1
Click here to see answer by venugopalramana(3286)   |
Question 64389This question is from textbook McDougal Littell
: Question #21 is Use the substitution method to solve the linear system. These are the equations:2x+3y=31, y=x+7 i tried to substituted it then it looked like this 2x+3(x+7)=31 then i combined like terms and it looked like this 5x+7=31 i took away the 7 to both sides and got 5x=24 i divided both sides by 5 to isolate the variable and got x=4.8 then i plugged that in for the next equation and i got 2(4.8)+3y=31 i solved the x so i got 9.6+3y=31 i subtacted the 9.6 and then it looked like this 3y=21.4 i dived it by three and i ended up with y=7.13 so the answer i got was (4.8,7.13) but the answer in the back of the book says it's (2,9) i don't know what i did wrong. please help me?
This question is from textbook McDougal Littell
Click here to see answer by stanbon(26274)  |
Question 64389This question is from textbook McDougal Littell
: Question #21 is Use the substitution method to solve the linear system. These are the equations:2x+3y=31, y=x+7 i tried to substituted it then it looked like this 2x+3(x+7)=31 then i combined like terms and it looked like this 5x+7=31 i took away the 7 to both sides and got 5x=24 i divided both sides by 5 to isolate the variable and got x=4.8 then i plugged that in for the next equation and i got 2(4.8)+3y=31 i solved the x so i got 9.6+3y=31 i subtacted the 9.6 and then it looked like this 3y=21.4 i dived it by three and i ended up with y=7.13 so the answer i got was (4.8,7.13) but the answer in the back of the book says it's (2,9) i don't know what i did wrong. please help me?
This question is from textbook McDougal Littell
Click here to see answer by chitra(359) |
Question 64399This question is from textbook McDougal Littell
: Question #33 says: use the substitution method to solve the linear system these are the equations 7g+h=-2 and g-2h=9. i reworte the second equation to make it look like this g=2h+9 then i plugged them in and got this 7(2h+9)+h=-2 turning out in 15h+63=-2 then i subtracted the 63 an got 15h=-65 then i divided the -65 by 15 to isolate the variable and got -4 33/100 but in the back of the book it says the y is 4 1/3 what did i do wrong? help please!
This question is from textbook McDougal Littell
Click here to see answer by stanbon(26274) |
Question 64392This question is from textbook beginning algebra
: The instuctions state to factor out the greatest common factor and write the expression in fadctored form. Use distributive property to verify the ans.
51. 2x3rd power-3x4th power+2x3rd power.
53. 25m5th power-50m4th power+100m3rd power.
Please help me solve not sure what to do!!!This question is from textbook beginning algebra
Click here to see answer by chitra(359) |
Question 64402This question is from textbook McDougal Littell
: 2876question #42 says you are selling tickets for a high school play students tickets cost 4$ and general admission cost$6. you sell 525 tickets and collect $2876 how many of each type of ticket did you sell? so far the only thing i get is that one of the equatons is i think 4x+6y=525 but i don't know how to get the other one,? help?This question is from textbook McDougal Littell
Click here to see answer by checkley71(8405) |
Question 64450This question is from textbook beginning algebra
: 59. r(r-2s)-s(2s-r)
61. a(x-4)-b(x-4)
the instructions says to factor out the greatest common factor and write the expression in factored form. use the distributive property to verify the ans.
the ans given for both polynomial are 59. (r-2s)r+s) and 61 (x-4)(a-b)
Please help me with this to solve I AM NOT SURE OF THE STEPS THANKSThis question is from textbook beginning algebra
Click here to see answer by stanbon(26274) |
Question 64448This question is from textbook beginning algebra
: the instructions are factor out the greatest common factor ad write the expression in factored form.. use the distributive property to verify your ans.
55. 45m2powern3power-36mn2power+63m3rd power n
57. 3a(1-5b)-4b(1-5b)
please help me in solving the ans in the book for ea is 55. 9mn(5mn2power -4n+7m2nd power)
57. ans: (1-5b)(3a-4b) please show me step by step..thanks so muchThis question is from textbook beginning algebra
Click here to see answer by stanbon(26274) |
Question 65072: A furniture manufacturing company manufactures tables and chairs. A table
requires 8 labor-hours for assembly and 2 labor-hours for finishing. A
chair requires 2 labor-hours for assembly and 1 labor-hour for finishing.
The maximum labor-hours available per day for assembly and finishing are
400 and 110, respectively. If x is the number of tables and y is the number
of chairs produced per day, determine how many tables and chairs can be
assembled and finished.
Answer
x = # of tables
y = # of chairs
x + 2y = 400, assembly
8x + 2y = 110, finished
HELP!!!!
Click here to see answer by stanbon(26274) |
Question 65222: what does this meen? What do I need to do? How would i solve this problem?
Write an equation of the line that passes through the point and has the given slope. Write the equation in slope-intercept form.
(0,2), m=1
Click here to see answer by 303795(562) |
Question 65562: OK, I am not a student, but I have recently been asked to find an answer for this equation by a friend. Everything I can do, or find on line, says that if the values are different numbers, there is no viable solution. Please help me with this.
X*Y = X+Y
What are the values of X and Y? Or is there no actual answer? Thank you.
Click here to see answer by stanbon(26274) |
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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
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