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Mixing candy |
2009-01-27 |
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From adriana:
The question says:
that a merchant wishes to mix candy worth 45 cents per pound, with some candy that costs 80 cents per pound. this will create a mixture of candy that sells for 65 cents per pound. there is a total amount of 350 pounds of candy.
What i need to know is:
The amount of pounds of candy at 65 cents per pound? and
The amount of pounds of candy at 80 cents per pounds?
Answered by Harley Weston. |
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25,000 pounds of sheet metal |
2009-01-27 |
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From JESSICA:
I need to convert 25,000 lbs. of 32x48 sheet metal into total sq. feet. What would be my formula?
Answered by Robert Dawson. |
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Find area of the rectangle in terms of L. |
2009-01-27 |
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From Arlen:
The length of a rectangle is L. The width is 8 less than the length. Find area of the rectangle in terms of L.
Answered by Penny Nom. |
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The vertical line test |
2009-01-26 |
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From bob:
what is a Vertical line test
Answered by Stephen La Rocque. |
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The grade of a roadway |
2009-01-26 |
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From black:
A highway that has a 6% grade rises 6 ft vertically for every 100 ft horizontally. Which trigonometric ratio is being used in reporting the 6% grade? Explain why
Answered by Stephen La Rocque. |
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A tennis schedule |
2009-01-26 |
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From Lorraine:
I need to create a tennis schedule. We have 8 players, but only 4 play at one time. I need to create a schedule for 34 matches, but of the 34 each player plays 17 times. Each player must also play with each of the other 7 the same number of times. For instance player 1 will play 17 times, and will play with the other players the same number of times as player 2 does. Is this even possible?
Answered by Robert Dawson. |
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ax^2 + bx + c = 0 has no real roots and.... |
2009-01-26 |
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From Alberto:
The equation ax^2 + bx + c = 0 has no real roots and a + b + c < 0 . Chose the right answer:
(A) c > 0
(B) c <= 0
(C) c = 0
(D) c >= 0
(E) c < 0
Explain the choice.
Answered by Robert Dawson and Harley Weston. |
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How long will it take to make 50 miles? |
2009-01-26 |
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From Tamara:
An object is traveling at a speed of 45 km/minute. How long will it take to make 50 miles?
Answered by Robert Dawson and Stephen La Rocque. |
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Grade of a hill |
2009-01-26 |
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From rachel:
if the grade is 18%, how many feet would it fall vertically over a horizontal distance of 250 yards.
Answered by Robert Dawson. |
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Solve (3x-2)/4 - 3x = 12 |
2009-01-26 |
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From michelle:
3x-2/4 - 3x = 12
Answered by Penny Nom. |
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Three consecutive natural numbers |
2009-01-26 |
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From abby:
1.what is the smallest four-digit number that is the sum of the three
consecutive natural numbers? what are the three consecutive
natural numbers that give this sum?
2.what is the largest three digit number whose square root is a prime?
Answered by Penny Nom. |
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The difference quotient (f(x+h)-f(x))/h |
2009-01-26 |
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From helen:
Find the difference quotient of f, f(x+h)-f(x)/h, h does not equal 0, for this function. Be sure to simplify. that is, find f(x)=x^2-x+4
Answered by Robert Dawson. |
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Linear speed |
2009-01-26 |
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From Hom:
A semi is driving cross country at 70mph. The tires on the semi have a 3 foot diameter. What is the linear speed in feet per minute?
Answered by Robert Dawson. |
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Using y = mx + b |
2009-01-26 |
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From Caroline:
How do you write a symbolic representation using the y=mx+b method?
Answered by Robert Dawson. |
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25 names in a hat |
2009-01-26 |
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From Irfan:
If there are 25 names in a hat, 15 girl's names and 10 boy's names, what is the probability that a name drawn at random will be
I. a girl's name
II. a boy's name
III. not a girl's name
IV. not a boy's name.
Answered by Robert Dawson. |
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