Tutors Answer Your Questions about Surface-area (FREE)
Question 169379: A temperature of 41 degrees F is equivalent to 278.2 degrees K, while a temperature of 86 degrees F is equivalent to 303.2 degrees K. How do I find the equation to convert Kelvin temperature to Fahrenheit. What is the Fahrenheit temperature when it is 180 degrees K?
Click here to see answer by jojo14344(1512) |
Question 169775: A soup can has a volume 54in^3.
Determining the height and radius of the can that requires the least amount of cost to construct if the metal cost 50cents per sq inch and the paper label cost 10 cents per square in.
Thankyou so much.
Click here to see answer by Fombitz(13828)  |
Question 169776: The top and bottom margins of a poster are each 6 cm and the side margins are each 4cm. If the area of printed material on the poster is fixed at 384cm^3, find the dimensions of the poster with the smallest area?
Thankyou for your time.
Click here to see answer by stanbon(57377) |
Question 170099: A man wants to coat the ceiling, walls, and floor of a rectangular room with a coating that cost $39.95 per gallon. The dimensions of the room are 7m by 9m by 4.5m. If one gallon covers 110m/2, how much will the man spend to cover the room?
Click here to see answer by Alan3354(30993)  |
Question 170130: A garden is in the shape of a rectangle, 20 metres by 8 metres. Around the outside is a border of uniform width and in the middle is a square pond. The width of the border is the same as the width of the pond. The size of the area, which is not occupied by either border or pond, is 124m^2. Find the width of the border.
Click here to see answer by ankor@dixie-net.com(15657)  |
Question 172146: Question: A poster is 25 cm taller than it is wide.It is mounted on a piece of cardboard so that there is a 5 cm border on all sides. If the area of the border alone is 1350 cm squared, what are the dimensions of the poster?
How do I set this problem up to solve?
Click here to see answer by Mathtut(3670) |
Question 172526: I am studying surface area and am totally stuck.
My problem reads: "A rectangular metal container with an open top is fabricated from 0.072-inch think aluminum sheet. The container is 18.00 inches wide, 25.00 inches long, and 23.00 inches high. The aluminum sheet weighs 1.045 pounds per square foot. Find the total weight of the container."
I know how to get the lateral area (which would be 1,978 square inches) and the surface area (which would be 2,428 square inches), but I do not know how to go about finding the weight from the information I have. I tried multiplying the surface area by the the thickness of the metal, but that made cubic units and I need square feet. What do I do to find the answer to this problem?
Click here to see answer by Mathtut(3670) |
Question 172526: I am studying surface area and am totally stuck.
My problem reads: "A rectangular metal container with an open top is fabricated from 0.072-inch think aluminum sheet. The container is 18.00 inches wide, 25.00 inches long, and 23.00 inches high. The aluminum sheet weighs 1.045 pounds per square foot. Find the total weight of the container."
I know how to get the lateral area (which would be 1,978 square inches) and the surface area (which would be 2,428 square inches), but I do not know how to go about finding the weight from the information I have. I tried multiplying the surface area by the the thickness of the metal, but that made cubic units and I need square feet. What do I do to find the answer to this problem?
Click here to see answer by josmiceli(9686)  |
Question 174098: Hello, I have a question that im extremely stuck on.
The question is as follows:- A circular pool has a radius r. It is surrounded by a path which is 2 metres wide. Work out a formula for the area of the path and give its area when r=2.5 metres.
Please could you show the step by step guide on how i would work this out.
Many thanks
Click here to see answer by stanbon(57377) |
Question 174100: Hello, I have a question that im extremely stuck on.The question is as follows:- A circular pool has a radius r. It is surrounded by a path which is 2 metres wide. Work out a formula for the area of the path and give its area when r=2.5 metres.Please could you show the step by step guide on how i would work this out.Many thanks
Click here to see answer by Alan3354(30993)  |
Question 174097: Hello, please could you help me with a question.
I need to find the surface area of a cylinder when the radius is 6cm and the length is 21 cm,
Please could you show the full step by step guide as i need to show the working out.
Many thanks
Click here to see answer by nycsub_teacher(90) |
Question 174119: Hello, I have a question that im extremely stuck on.The question is as follows:- A circular pool has a radius r. It is surrounded by a path which is 2 metres wide. Work out a formula for the area of the path and give its area when r=2.5 metres.Please could you show the step by step guide on how i would work this out.The more simplified the better.
Many thanks
Click here to see answer by ptaylor(2048)  |
Question 174119: Hello, I have a question that im extremely stuck on.The question is as follows:- A circular pool has a radius r. It is surrounded by a path which is 2 metres wide. Work out a formula for the area of the path and give its area when r=2.5 metres.Please could you show the step by step guide on how i would work this out.The more simplified the better.
Many thanks
Click here to see answer by ankor@dixie-net.com(15657)  |
Question 174083: Q1. The length of a rectangular swimming pool is 2x-1 meters, and the width is x + 2 meters. Write a polynomial A(x) that represents the area. Find A(5).
Q2.Find a trinomal A(x) that represents the area of a parallelogram whose base is 3x + 2 meters and whose height is 2x + 3 meters. Find A(3).
Q3.The perimeter of a rectangular backyard is 6x +6 yards. If the width is x yards, find a binomial that represents the length.
Q4.P dollars is inveted at annual interest rate r for 1 year. If the interest is compounded semiannually, then the polynomial P(1 + r/2)to the 2nd power represents the value of the investment after 1 year. Rewrite this expression without parentheses. Evaluate the polynomial if P=$200 and r=10%.
Click here to see answer by stanbon(57377) |
Question 174148: Q1. If a vendor charges P dollars each for rugby shirts, then he expects to sell 2000-100p shirts at a tournament.
(A). Find a polynomial R(p) that represents the total revenue when the shirts are p dollars each.
(B). Find R(5), R(10), and R(20)
(The total revenue are in thousands of dollars)
Q2. If the diameter of a circle is 1.3 times (10 to the negative 12 power) meters, then what is its radius?
Click here to see answer by Mathtut(3670) |
Question 174449: A cylinder with a diamter of 10 centimeters and a height of 20 centimeters is cut in 1/2 horizontally. What is the difference between the combined total surface areas of the 2 newly created cylinders and the total surface area of the original cylinder?
Click here to see answer by Alan3354(30993)  |
|
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
|