Tutors Answer Your Questions about Equations (FREE)
Question 512216: Please help me with these:
1. If 7 men can do 3 jobs in 27 hours then ? men can do 5 jobs in 35 hours.
2. If 10 men can do 6 jobs in 48 hours then 6 men can do ? jobs in 40 hours.
3. If 8 men can do 5 jobs in 10 hours then 5 men can do 10 jobs in ? hours.
Thank you.
Click here to see answer by Edwin McCravy(20054)   |
Question 534427: Reduce the rational expression to lowest terms. If it is already in lowest terms, enter the expression in the answer box. Also, specify any restrictions on the variable.
-8/(4x-20)
Rational expression in lowest terms:
Variable restrictions:
Click here to see answer by algebrahouse.com(1659)  |
Question 535285: A store set the price it sold a pair of jeans for by tripling the amount it had paid for the jeans. After a month, the jeans were marked down by $5. Two weeks later, the price was divided in half. Finally, the price was reduced $3, down to $14.99. How much did the store pay for the jeans?
Click here to see answer by MathTherapy(10551)  |
Question 535101: I take any two numbers which I call a and b (lets say 2 and 3). These are my first 2 numbers. I then add them together to give my 3rd number (in this case 5), then to get my 4th number I add the second and third numbers (8). My 5th number is the sum of the third and forth numbers (5 + 8 = 13). My 6th is the sum of the forth and fifth etc until I have 10 numbers (if I start with 2 and 3 they would be 2, 3, 5, 8, 13, 21, 34, 55, 89, 144) Add these 10 numbers together.I can find the answer in my head before you can using a calculator using algebra. Please help me work out this question i have to find out how to use algebra to find the answer.Please help. thank you.
Click here to see answer by bucky(2189) |
Question 535794: I have an exam in just a little more than an hour. I am going over my review for the exam and there are 2 problems that I have the answers for, because they have given us that but I need to know how to go about solving the probelems. Anyone's help is greatly appreciated!!!
_x+4_ = _x+10___
x-3 x+2
Not sure if this makes any sense... I am not sure how to type this up.. It is fractions. x+4 is over x-3 and then it is = in the middle with x+10 above x+2.
The other one that I am struggling with is this
__5__ + _3__ = 1
3x x
This is the same it is a fraction but instead of it being a fraction at the end it is an equals sign with a 1. Thanks so much!
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 535794: I have an exam in just a little more than an hour. I am going over my review for the exam and there are 2 problems that I have the answers for, because they have given us that but I need to know how to go about solving the probelems. Anyone's help is greatly appreciated!!!
_x+4_ = _x+10___
x-3 x+2
Not sure if this makes any sense... I am not sure how to type this up.. It is fractions. x+4 is over x-3 and then it is = in the middle with x+10 above x+2.
The other one that I am struggling with is this
__5__ + _3__ = 1
3x x
This is the same it is a fraction but instead of it being a fraction at the end it is an equals sign with a 1. Thanks so much!
Click here to see answer by Earlsdon(6294) |
Question 536070: Hello, I have a test tomorrow, and am stuck on one of the revision questions:
The tangent to the curve y=f(x) at the point (x,y) has an x-intercept of x=3. If the curve has a y intercept of 2, find f(x).
This is in the chapter of Intergration, so I have to use that method.
Thank you!
Click here to see answer by richard1234(7193)  |
Question 536313: a shopkeeper has only 4 weights. He weighs 1 kg to 40 kg of weight in exact quantity with combination of these four weights that he got. He doesn't sell goods in half or quarter kilos. What would be the amount of weights he has, to weigh each and every no. ranging from 1 to 40 kg.
Click here to see answer by Alan3354(69443)  |
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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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