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Question 1181262: A mural is to be painted on the wall that is 15m long and 12m high. A border of uniform width is to surround the mural. If the mural is to have an area of 135m^2, how wide must the border be to completely cover the wall?
Thanks
Click here to see answer by ikleyn(52781)

Question 1182610: Pauline Wong spends three hours selling a used car and five hours selling a new car she works no more than 31 hours per week in order to receive a bonus she must sell at least two used cars and two new cars each week. In that case she receives a bonus of 200 for each used car and 300 for each new car. how many cars and how many used cars can she try to sell to maximize her bonus? what is the maximum bonus?
a. define the variables to use
b. goal function
c. constraints
e. optimal solution
Click here to see answer by ikleyn(52781)

Question 1182609: Lia can rent a van for either $90 per day with unlimited mileage or $50 per day with 250 free miles and an extra $.25 for each mile over 250. for what number of miles traveled in one day with the unlimited mileage plan save Lia money?
Click here to see answer by Theo(13342)

Question 1182872: The difference between 8 times and number of 5
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Question 1182872: The difference between 8 times and number of 5
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Question 1183104: If the reciprocal of a number is subtracted from 5 times that number, the result is −4 . Find the number.

Click here to see answer by josgarithmetic(39617)

Question 1183448: How to write out "Four more than three times a number is equal to 27". I am so lost with this.
Click here to see answer by MathLover1(20849)

Question 1183441: Solve for the following systems either by Matrix Inversion and Cramer's Rule:
C=co + ci(Y-T) (3 pts) 2. T=to +tY where co > 0,41 € (0,1) Y=C +10 + GO to > 0,t1 € (0,1) 10 > 0, G0 > 0
Click here to see answer by ikleyn(52781)

Question 1183763: A three-digit number whose hundreds digit is twice the tens digit and the tens digit is 3 more that
the units digit

Click here to see answer by Theo(13342)

Question 1183763: A three-digit number whose hundreds digit is twice the tens digit and the tens digit is 3 more that
the units digit

Click here to see answer by MathTherapy(10552)

Question 1184439: What number gives a result of −4 when 10 is subtracted from the quotient of the number and 4?
Click here to see answer by ikleyn(52781)

Question 1184454: Sipho wants to go on overseas holiday. He exchanges R10 500 at the bank and obtains $820. Calculate the dollar to rand exchange rate on that day.
Click here to see answer by Theo(13342)

Question 1184500: in 1998, the sports league introduced a salary cap that limits the amount of money spent on players’ salary. the quadratic model y=0.2313x^2+2.600x+35.17 approximates this cap in millions of dollars for the years 1998-2012, where x=0 represents 1998, x=1 represents 1999, and so on. complete parts a and b.
a) approximate the sports league salary cap in 2008.
b) according to the model, in what year did the salary cap reach 95 million dollars?
Click here to see answer by Boreal(15235)

Question 1184849: A laboratory tested 78 chicken eggs and found that the mean amount of cholesterol was 224 milligrams with s = 14.7 milligrams. Find the 95% confidence interval.
Round your answer to the nearest whole number unless indicated otherwise.
Click here to see answer by Theo(13342)

Question 1185075: 28 is the product of g score and 2

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Question 1185292: Find a number such that the square of 1 more than the number is four more than four times the number.

Click here to see answer by Alan3354(69443)

Question 1185432: if 2 is added to five times a number, the result is equal to 5 more than four times the number. Find the number.
Click here to see answer by ikleyn(52781)

Question 1185827: The sum of two numbers is twelve. The total of three times the smaller and twice the larger is twenty-nine.
Click here to see answer by Alan3354(69443)

Question 1186184: Polly Painter, Willie Wright, Dan Dancer, and Elvis Singer are a group of very talented people. Strangely enough, their names don't match their talents. One is a painter, one is a writer, one is a dancer, and one is a singer. Your job is to figure out who is who from these clues:
-Dan Dancer and Willie Wright attended a concert given by the singer.
-Elvis Singer and the writer had their portraits painted by the painter.
Click here to see answer by ikleyn(52781)

Question 1186360: A computer manufacturing company makes rectangular-shaped boxes for their system units. The boxes have square bottoms with a height of h inches. The volume of these boxes is given by the function V=h³-6h²+9h. Note: Volume = length x width x height; Area = length x width a. Find the expression for finding the length of each side of the square bottom b. Find the area of the square bottom and the volume of the box if the company needs to enclose a system unit with a height of 18 inches.

Click here to see answer by ikleyn(52781)

Question 1187749: Hi! I need help solving a word problem, a step by step demo would be appreciated and helpful!
Here's the problem:
Liz and Troy collect baseball cards. Liz has 4 less than twice the number of cards Troy has. Together they have 149 cards. How many does each person have?
This has me stuck! Thanks in advance :)
Click here to see answer by josgarithmetic(39617)

Question 1188285: What is the mathematical expression of this. The percentage of alcohol in a mixture formed by combining 1 liter of pure water and x liters of 40% alcohol solution
Click here to see answer by ikleyn(52781)

Question 1188284: What is the mathematical expression of this. A three-digit number whose hundreds digit is twice the tens digit and the tens digit is 3 more that the units digit
Click here to see answer by ikleyn(52781)

Question 1188282: What is the mathematical expression of this. The fraction of work done by a man who can finish a job in 2 hours
Click here to see answer by Alan3354(69443)

Question 1188283: What is the mathematical expression of this. The total interest earned after one year when Php 120,000.00 is invested, part of 8% annual interest rate and the remaining part at 4.5% annual interest rate
Click here to see answer by Alan3354(69443)

Question 1188526: A man has a collection of 19 coins worth $2.55. There are twice as many nickels as dimes. If the rest are quarters, how many quarters are there?
Click here to see answer by ikleyn(52781)

Question 1188857: A car can be rented for $60 per week plus $0.75 per mile. How many miles can be driven if you have a most of $210 to spend for weekly transportation?
Click here to see answer by Theo(13342)

Question 1189302: I add 12 to a certain number and then double the result. The answer is 42. Find the original number?
Click here to see answer by ikleyn(52781)

Question 1189302: I add 12 to a certain number and then double the result. The answer is 42. Find the original number?
Click here to see answer by josgarithmetic(39617)

Question 1189850: Is this problem possible to solve?
I have tried applying the Pythagorean theorem, quadratic equations etc. but have been unable to come up with a solvable equation.

The diagonal measure of a small TV screen is 1 inch greater than the length and 2 inches
greater than the width. Find the length and width
I would appreciate if anyone can point out something I am missing, or if this is a flawed problem.
Click here to see answer by mananth(16946)

Question 1190000: Thrice the difference of a number and 3 is 7 more than that number. Find the number. *

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Question 1190000: Thrice the difference of a number and 3 is 7 more than that number. Find the number. *

Click here to see answer by ikleyn(52781)

Question 1190029: Assume f is a one-to-one function. If f(x)=3-6xf , find f^-1(33)

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Question 1190051: The angles in a triangle are such that the measure of one angle is twice the measure of the smallest angle, while the measure of the third angle is three times the measure of the smallest angle. Find the measures of all three angles, in degrees.
Click here to see answer by ikleyn(52781)

Question 1190052: The perimeter of a triangle is 37 feet. One side of the triangle is one foot longer than the second side. The third side is three feet longer than the second side. Find the lengths of all three sides (in feet). (Enter your answers as a comma-separated list.)
Click here to see answer by math_tutor2020(3817)

Question 1190053: Sarah wants to arrive at her friend's wedding at 3:00 PM. The distance from Sarah's house to the wedding is 90 miles. Based on usual traffic patterns, Sarah predicts she can drive the first 20 miles at 60 miles per hour, the next 5 miles at 30 miles per hour, and the remainder of the drive at 65 miles per hour.
(a)How many minutes will it take Sarah to drive the first 20 miles?
(b)How many minutes will it take Sarah to drive the next 5 miles?
(c)How many hours will it take Sarah to drive the rest of the trip?
(d)What time should Sarah leave her house? (Give your answer using standard hour:minute clock format.)

Click here to see answer by math_tutor2020(3817)

Question 1190057: One side of a triangle is twice the smallest side. The third side is four feet more than the shortest side. The perimeter is 16 feet. Find the lengths of all three sides (in feet). (Enter your answers as a comma-separated list.)
Click here to see answer by MathLover1(20849)

Question 1190054: A commercial jet and a private airplane fly from Denver to Phoenix. It takes the commercial jet 1.6 hours for the flight, and it takes the private airplane 2.4 hours. The speed of the commercial jet is 180 miles per hour faster than the speed of the private airplane. Find the speed, in miles per hour, of both airplanes.
Click here to see answer by ikleyn(52781)

Question 1190056: Macario is making 12 pounds of nut mixture with macadamia nuts and almonds. Macadamia nuts cost $9 per pound and almonds cost $5.25 per pound. How many pounds of macadamia nuts and how many pounds of almonds should Macario use for the mixture to cost $7.75 per pound to make?
Click here to see answer by josgarithmetic(39617)

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