Tutors Answer Your Questions about Systems-of-equations (FREE)
Question 346645: Write a system of two equations using x and y to represent the following problem. A chemist is mixing two solutions together.
The chemist wants 100 gallons when complete. He is mixing a 24% solution with a 50% solution to get a 36% solution. How many gallons of each will he use?
Click here to see answer by nerdybill(7384)   |
Question 346645: Write a system of two equations using x and y to represent the following problem. A chemist is mixing two solutions together.
The chemist wants 100 gallons when complete. He is mixing a 24% solution with a 50% solution to get a 36% solution. How many gallons of each will he use?
Click here to see answer by Fombitz(32388)  |
Question 347738: The Sheng family had dinner at their favorite restaurant. A 10% sales tax was added to their bill. amy paid the bill with a $20 gift certificate plus $23.5. How much did the family's dinner cost before tax? Round your answer to the nearest penny.
Click here to see answer by josmiceli(19441)  |
Question 348306: The total cost to rent costumes for the school play is $180.00. Since the boys' costumes are more elaorate, they cost $9.00 each, while the girls' costumes cost $4.50 each.
a. Write the equation that represents the scenario. Let x represent the cost of a boys' costume and y represent the cost of a girls' costume.
b. Solve the equation for y.
Click here to see answer by Deja12347(3) |
Question 348376: The total cost to rent costumes for the school play is $180.00. Since the boys' costumes are more elaorate, they cost $9.00 each, while the girls' costumes cost $4.50 each.
a. Write the equation that represents the scenario. Let x represent the cost of a boys' costume and y represent the cost of a girls' costume.
b. Solve the equation for y.
Click here to see answer by checkley77(12844) |
Question 353045: Create an equation of a nonlinear function and provide two inputs for your classmates to evaluate.
f(x)=10²+5
find f(2) and f(-2)
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Create an equation of a nonlinear function and provide two inputs for your classmates to evaluate.
5y+4x=41
(5,4) or (4,5)
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Create an equation of a nonlinear function and provide two inputs for your classmates to evaluate.
2y+8x=24
(1,-2) and (0,4)
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Solve:
Y= 2x^3-5
((2,-1) (4,-5)
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Problem #1
For f(x)=-6x3+10
find f(4) and f(-4)
Problem #2
For g(x)=20-5x2
find f(1) and f(-1)
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Create an equation of a nonlinear function and provide two inputs for your classmates to evaluate.
y=x^3-30
evaluate if either of these sets is a solution:
(4,34) (5,90)
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Create an equation of a nonlinear function and provide two inputs for your classmates to evaluate.
y=16-x³ (-2,4), (3,6
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solve
Y=4x^3-10
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Click here to see answer by solver91311(24713)  |
Question 355074: Hi,
Does anyone know how this question works?
Write the system of equations for the following applications. Do NOT solve the system!!! (I don't know why that last sentence is written at the end of the question, but it seems like it would be worth knowing both the system of equations and the solution):
A movie theater charges $7 for adults, $5 for children under age 17, and $4 for seniors over age 60. For one showing of the movie Batman the theater sold 222 tickets and took in $1383. If twice as many adult ticket swere sold as the total for children and senior tickets, how many tickets of each kind were sold?
Many thanks!
Ron
Click here to see answer by jrfrunner(365)  |
Question 355187: How do I solve this equation?
Which of the following set of all integers y for which 6y^2 + 9y + 17 is an even integer?
(a) The integers
(b) The nonzero integers
(c) The nonzero, even integers
(d) The even integers
(e) The odd integers
Tks
Click here to see answer by Edwin McCravy(20054)  |
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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
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