Tutors Answer Your Questions about Inequalities (FREE)
Question 135368: A food chemist tests enzymesfor their ability to break down pectin in fruit juices (Dennis Callas). Excess pectin makes juice cloudy. In ine test, the chemist measures the concentration of the enzyme, c, in miligrams per milliliter and the fration of light absorbed by the liquid, a,. If a > 0.07c +0.02, then the enzyme is working as should. Graph the inequality in the first quadrant.
Click here to see answer by stanbon(57967)  |
Question 135667: Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. (a) The sales rep. informs you that there are two floor plans still available, and that there are a total of 56 houses available. Use x to represent floor plan #1 and y to represent floor plan #2. Write an equation that illustrates the situation. (b) The sales rep. later indicates that there are 3 times as many homes available with the 2nd floor plan than the first. Write an equation that illustrates this situation. Use the same variables you used in part a. (c) Use the equations form part a and b as a system of equations, and solve via substitution.
Click here to see answer by stanbon(57967) |
Question 136136: How do you konw if a value is a solution for an inequality? How is this different from determining if a value is a solution to an equation with an inequality sign? Is there ever a time when the same value will be a solution to both the equation and the inequality?
Can you write an inequality and provide the value that may or may not be a solution to the inequality?
Click here to see answer by solver91311(17077)  |
Question 137484: I need to solve the problem:
5(n-7)n is less than or equal to 20
This is my solution but I'm not sure it is correct:
5(n-7)n< or = 20
5*n-5*7n< or = 20
5n-35n< or = 20
-30n< or = 20
-30n/-30 < or = 20/-30
n < or = -2/3
The questions is from a worksheet called 7-7 Practice Writing Inequalities Student Edition Glencoe/McGraw-Hill pages 355-357
Click here to see answer by stanbon(57967) |
Question 138123: I don't know how to answer this question.... can you please teach me how to solve this problems???...show me how and what will be the result.... tnx
1. subtracting 8% of x from x is the same as multiplying x by what number?
2. if a:b= 3:7, find the ratio of (a+b) to (a-b)
Click here to see answer by checkley77(12569) |
Question 138703: The sum of the lengths of any two sides of a triangle must be greater than the third side. If a triangle has one side that is 9 cm and a second side that is 3 cm less than twice the third side, what are the possible lengths for the second and third sides?
Click here to see answer by ankor@dixie-net.com(15746)  |
Question 139678: Tutor could you help me please: A homeowner wants to fence a rectangular garden using 120 ft of fencing. The side of the garage will be used as one side of the rectangle. Find the dimensions for which the area is a maximum.
thank you
Click here to see answer by stanbon(57967) |
Question 139759: You run a ten-kilometer race in 45.5 minutes. Write an inequality for the time,t, of the runners who finished the race after you did.
Thanks, I would appreciate any help you can give me. I've been stuck on a couple problems like these. So any help would be great!
Click here to see answer by solver91311(17077) |
Question 139760: You are at the music store to buy some CDs. You have $45 to spend and the store sells CDs for $12.99 each. Write an inequality that represents the number,n, of the CDs that you can buy without spending more money than you have.
I'm having problems with this one because I'm not sure on how to set it up. I know you don't want to go over the 45 dollars and you can buy 3 CDs with that money that you have, but i'm just stuck because i don't know how to set it up. Any info would be appreciated, thanks!
Click here to see answer by solver91311(17077) |
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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, 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
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