Tutors Answer Your Questions about Inequalities (FREE)
Question 993930: Find a system of inequalities and sketch a graph for the following information: A merchant is buying two brands of product. Brand A costs $600, brand B costs $ 200, but the merchant can at most spend $ 3600. Brand A weighs 80 lb, brand B weighs 160 lb and each requires 3 ft^3 of space. However, the delivery vehicle can hold at most 1040 lb and at most 24 ft^3 of cargo.
Click here to see answer by stanbon(75887)  |
Question 994057: "The sum of the digits of a certain two digit number is 13. When you reverse its digits you increase the number by 45. Find the number."
I solved this and wanted to put it up for everyone else who would have trouble with this problem. You can solve it yourselves if you want, but this is just what I got.
I got 49. The explanation: http://screencast.com/t/fGexMR44y0iR
and the proof/check work: http://screencast.com/t/jpZV9m0vt
Click here to see answer by addingup(3677)  |
Question 994201: Use the position function
s(t) = -16t^2 + v_0t + s_0
v0 = initial velocity,
s0 = initial position,
t = time
to answer the following question.
You throw a ball straight up from a rooftop 170 feet high with an initial velocity of 32 feet per second. During which time period will the ball's height exceed that of the rooftop?
ANSWER: Between ...?? and ...?? seconds.
Click here to see answer by stanbon(75887) |
Question 994201: Use the position function
s(t) = -16t^2 + v_0t + s_0
v0 = initial velocity,
s0 = initial position,
t = time
to answer the following question.
You throw a ball straight up from a rooftop 170 feet high with an initial velocity of 32 feet per second. During which time period will the ball's height exceed that of the rooftop?
ANSWER: Between ...?? and ...?? seconds.
Click here to see answer by josmiceli(19441)  |
Question 994201: Use the position function
s(t) = -16t^2 + v_0t + s_0
v0 = initial velocity,
s0 = initial position,
t = time
to answer the following question.
You throw a ball straight up from a rooftop 170 feet high with an initial velocity of 32 feet per second. During which time period will the ball's height exceed that of the rooftop?
ANSWER: Between ...?? and ...?? seconds.
Click here to see answer by MathLover1(20849)  |
Question 994199: The perimeter of a rectangle is 210 feet. Describe the possible lengths of a side if the area of the rectangle is not to exceed 2250 square feet.
Your answer should be one interval in each box.
ANSWER: The length (in feet) of a side is in the interval....???
or in the interval....???
Click here to see answer by stanbon(75887) |
Question 994205: Consider the following inequalities:
4y + 9 > −3
2y + 1 < −5
3y + 4 > −5
−5y − 2 < 13
The inequality that is not equal to the other three is
[1] −5y − 2 < 13.
[2] 3y + 4 > −5.
[3] 2y + 1 < −5.
[4] 4y + 9 > −3.
[5] none of the above.
Click here to see answer by stanbon(75887) |
Question 994271: The height of a projectile is modeled by equation y=-2x^2+38x+10, where x is time, in seconds, and y is height, in feet. During what interval of time to the nearest temth of a second is the projectile at least 125 feet above the ground?
Click here to see answer by rothauserc(4718)  |
Question 994702: I need help on this problem please.
The average air pressure in another town is 29 inches but the actual pressure is within 4 inches of the average. Write and solve an inequality to find the range of air pressure in this town.
Click here to see answer by fractalier(6550)  |
Question 994702: I need help on this problem please.
The average air pressure in another town is 29 inches but the actual pressure is within 4 inches of the average. Write and solve an inequality to find the range of air pressure in this town.
Click here to see answer by Alan3354(69443)  |
Question 995428: Use your graphing calculator to find the values of x for which x^2 - 3x - 18 < 0. Are these the same values of x you found in x^2 - 12 , 3x + 6?
I know that they should be the same values, but how do you tell what the values of x are from graphing it?
Click here to see answer by josgarithmetic(39613) |
Question 995434: A silversmith wishes to obtain an alloy containing at least 72% silver and at most 75% silver. Determine the greatest and least amounts of an 80% silver alloy that should be combined with a 65% silver alloy in order to have 30grams of the required alloy.
Click here to see answer by josmiceli(19441) |
Question 995443: A rectangular plot of the ground is to be enclosed by a fence and then divided down the middle by another fence. The fence down the middle costs $3 per running foot and the other fence costs 6$ per running foot. If the area of the plot is to be 1800ft² and the cost of the fence is not to exceed $2310, what are the restrictions on the dimensions of the plot?
Click here to see answer by ankor@dixie-net.com(22740)  |
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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, 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
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