Tutors Answer Your Questions about Metalworking (FREE)
Question 1101806: the mass of the mixture A of the beans and maize is 72kg. the ratio of beans to maize is 3:5 respectively.
a)find the mass of the maize in the mixture.
b)a second mixture B of beans and maize of mass 98kg is mixed with A . the final ratio of beans to maize is 8 : 9 respectively. find the ratio of beans to maize in B ?
Click here to see answer by jorel1380(3719)   |
Question 717398: The topic is Survery... I am very confused here is the question.
Eric Dangerfield interviewed 140 people in a surban shopping center to find out some of their cooking habits. He obtained the results given at the top of the next column.
58 use microwave, 63 use electric ranges, 58 use gas ranges, 19 microwave ovens and electric ranges, 17 use microwave ovens and gas ranges, 4 use both gas and electric ranges and 1 use all three
a. How many use exactly two of these kinds of appliances?
b. How many use at least two of these kinds of appliances?
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 698492: What is the answer for "u" is this equation:
5.1u-6.6=2.4-0.9u
At first I remembered like families so 5.1u and 0.9u will be together I dont know if Im correct so it will be:
5.1u + or - 0.9 I am always getting confused can you explain the steps for me.
Click here to see answer by stanbon(75887) |
Question 624821: An aluminum piston 4 in. in diameter that moves in the cylinder of a cast iron engine block must have a clearance diameter of 0.003 in. when hot. The temperature rises from 70 degrees to 160 degrees Farenheit. What should the clearance between the bore diameter and the piston be if the linear coefficient of expansion per unit length (inch) per degree Farenheit is 0.0000124 for aluminum and 0.00000655 for cast iron when the temperature is 70 degrees F?
Thank you, in advance for your time and attention to this matter.
Mary Miller
Click here to see answer by Alan3354(69443)  |
Question 551262: Ok I need steps for the question " a store allows customers to buy 3 iteams of the same price and get 2 more of the same iteams free. What percent savings does this represent.
The answer is 40 but i need steps im only 12 so make the steps easy. thanks :p
Click here to see answer by josmiceli(19441)  |
Question 551262: Ok I need steps for the question " a store allows customers to buy 3 iteams of the same price and get 2 more of the same iteams free. What percent savings does this represent.
The answer is 40 but i need steps im only 12 so make the steps easy. thanks :p
Click here to see answer by scott8148(6628)  |
Question 414085: The electrical resistance of a wire varies directly as its length and inversely as the square of its diameter. If a wire with length 100cm and diameter 2 mm has a resistance of 1.5 Ohms, find the resistance of a wire with length 300cm and diameter 3mm.
I tried to find something similar to this in my textbook and couldn't. My guess was that the formula to use would be r=k(L/D^2), then solve for k which would be the constant. Once I have solved for k I can plug the new length and diameter into the formula and solve for r, am I on the right track?
Click here to see answer by stanbon(75887) |
Question 369900: there are five people standing in a room. Antonio is 5 time the age of Patrick who is half the age of Merlyn. Ed is 30 years younger than double Merlyn and Patrick's combined ages. Precious is 79 years younger than Antonio. The sum of their ages is 271. How old is Precious?
Click here to see answer by mananth(16946)  |
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