Tutors Answer Your Questions about expressions (FREE)
Question 1137806: This is my son's homework. Would appreciate your help with a grade appropriate solution. Thank you in advance.
Briana bought 5 bananas for $1. Sal bought 5 bananas at $.49 a pound. If a banana weighs about 5 ounces, who got the better buy?
(16 oz 5 1 lb)
a. How much did Briana pay per ounce for the bananas?
b. How much did Sal pay per ounce for the bananas?
c. Who got the better buy?
Click here to see answer by Alan3354(69443)  |
Question 1137993: Hannah's school hosted a book donation. There are 150 students at her school, and they donated a total of b books. Hannah donated 3 times as many as the average number of books each student donated. How many books did Hannah donate? Write your answer as an expression.
Click here to see answer by Boreal(15235)  |
Question 1138225: solve the system by back substitution
4x+8y+2z+6w=-4
-3y-18z-6w=-24
-5z-5w=-10
5w=15
i solved from the bottom and got w=3 and kept plugging into each equation and i ended up with w=3,z=-1,y=14/3 and x=-43/3
but it says my answers are wrong help please.
Click here to see answer by josgarithmetic(39623) |
Question 1140543: With the digits 2, 3, 4 and 5 (using only these digits and using them all but only once) select any math operations (addition subtraction, multiplication, division, parentheses, roots, exponents, factorials) to be used only one time to create an equation whose answer equals 26. Be sure to follow order of operations rules.
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 1142603: Two college students have started their own business building computers from kits. Working alone, one student can build a computer in 20 hours. When the second student helps, they can build a computer in 7.5 hours. How long would it take the second student, working alone to build the computer? create and equation and solve
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 1142603: Two college students have started their own business building computers from kits. Working alone, one student can build a computer in 20 hours. When the second student helps, they can build a computer in 7.5 hours. How long would it take the second student, working alone to build the computer? create and equation and solve
Click here to see answer by ikleyn(52832)  |
Question 1142603: Two college students have started their own business building computers from kits. Working alone, one student can build a computer in 20 hours. When the second student helps, they can build a computer in 7.5 hours. How long would it take the second student, working alone to build the computer? create and equation and solve
Click here to see answer by greenestamps(13203)  |
Question 1142664: To prepare for a marathon run, Sue ran 30 miles before she blistered her heel, and then she walked 1 additional mile. Her running speed was 12 times as fast as her walking speed. She was running and walking for 7 hours. Find Sue's running speed.
Click here to see answer by Alan3354(69443)  |
Question 1142664: To prepare for a marathon run, Sue ran 30 miles before she blistered her heel, and then she walked 1 additional mile. Her running speed was 12 times as fast as her walking speed. She was running and walking for 7 hours. Find Sue's running speed.
Click here to see answer by josmiceli(19441)  |
Question 1142664: To prepare for a marathon run, Sue ran 30 miles before she blistered her heel, and then she walked 1 additional mile. Her running speed was 12 times as fast as her walking speed. She was running and walking for 7 hours. Find Sue's running speed.
Click here to see answer by josgarithmetic(39623) |
Question 1142664: To prepare for a marathon run, Sue ran 30 miles before she blistered her heel, and then she walked 1 additional mile. Her running speed was 12 times as fast as her walking speed. She was running and walking for 7 hours. Find Sue's running speed.
Click here to see answer by MathTherapy(10555)  |
Question 1142816: The period of a particle moving in SHM is 6 seconds and its amplitude is 8cm. Calculate its velocity and acceleration to 1dp when the particle is 5cm from the centre of motion.
I currently have x=8cos(pi/3 t + alpha), but I'm not sure how to get alpha.
Click here to see answer by ikleyn(52832)  |
Question 1146665: Carlos is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices.
Company A charges $119 and allows unlimited mileage.
Company B has an initial fee of $65 and charges an additional $0.90 for every mile driven.
For what mileages will Company A charge less than Company B?
Use m for the number of miles driven, and solve your inequality for m.
Click here to see answer by Theo(13342)  |
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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
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