01/31/15

Can someone help me with this word problem?
The profit on a blue car is $10 more than the profit on a white car, and the profit on a red car is $7 less than the profit on a white car. If the profit on two red cars is $2 less than the profit... more
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01/31/15

how do i find all solutions to the equation in the interval [0, 2p]. cos x = sin 2x
I am struggling with my precalc class and i cant seem to answer this one 
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01/31/15

Need help if possible
 PRODUCTION SCHEDULING A company has plants located inMichigan, New York, and Ohio where it manufactures laptop com-puters, desktop computers, and servers. The number of units ofeach product that... more
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01/31/15

a family decides they can spend 3/7 of their monthly income on house payments if their monthly income is 2870 how much can they spend for house payments
Got stuck not sure how to solve it was not taught in lesson 
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01/31/15

you pay $180 for three knives the restaurant supply store gave you a 5% discount on all three knives what was the original price of one knife
$180 for three knives 5%discount on all three knives 
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01/30/15

You’re pulling out three balls from a box. For this problem, assume the balls in the box are numbered 1 through 7, and that an experiment consists of randomly s
You’re pulling out three balls from a box. For this problem, assume the balls in the box are numbered 1 through 7, and that an experiment consists of randomly selecting 3 balls one after another... more
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01/30/15

potato math problem
Puzzle: Potatos are made 99% of water and only 1% of "potato stuff". Maddog bought 100 kilograms of potato and left them outside his home, taking a "sun bath". When he was back, he noticed the... more
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01/30/15

Assume that you have a committee of 14 members, made up of 7 men and 7 women.
the rest of my question: In how many ways can the 3 tasks be assigned so that both men and women are given assignments?
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01/30/15

Assume that the set S has 13 elements. How many subsets of S have at most 4 elements?
I cant figure out how to solve this problem with the information provided.
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01/30/15

one number is 7 more than twice the other number. if the sum of two numbers is 31, find the two numbers.
need explainations
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01/30/15

Need Help on this problem
A radio disc jockey has 7 songs on this upcoming hour's playlist: 3 are rock songs, 2 are reggae songs, and 2 are country songs. The disc jockey randomly chooses the first song to play, and then... more
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Sat

01/30/15

SAT Question
Shawna is at a state fair. She currently has enough money to ride the Berserker 20 times. if the cost to ride the berserker was 25 cents less, Shawna could ride it 10 more times. How much money... more
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01/30/15

Math help please
You need to order pipe for 3 different projects which require 42, 126, and 210 feet of pipe respectively. Pipes can be ordered any length, however, all pipes in an order must be of the same length.... more
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01/29/15

2 every 15 mins starting on at 10am on Sat when will all 176 seventh grade students know info?
Russell, a seventh grader, finds out the winner of the school talent show at 10:00AM on Saturday. He texts two seventh grade friends at 10:15AM to tell them. By 10:30AM, they each text two 7th... more
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01/29/15

Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -2x^2 + 6x + 7
Select the approximate values of x that are solutions to f(x) = 0, wheref(x) = -2x^2 + 6x + 7
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01/29/15

I need help on a trig word problem
The angle of elevation from the far side of a pool to the top of a waterfall is 65 degrees and the distance from the far side of the pool to the top of the waterfall is 160 feet. a. Find the... more
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01/29/15

Circle with inscribed angle and arc
I have a circle with an inscribed angle of 45°. The arc opposite the angle is marked (3w - 30)°. My instructions are Find w. Since the arc is always double the inscribed angle, I know that the... more
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01/29/15

a man drove 1/2 of his trip at 36 mi/h. What speed does he need to drive the next half to make the average speed 45 mi/h
I don't know how to solve it! The basic formula for average speed is speed=distance/time but here, you have none of that!
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01/29/15

x^2+12x+31=0
solve by completing the square, please.
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01/28/15

Please answer this question!
A 35-inch board is to be cut into three pieces so that the second piece is twice as long as the first peice and the third piece is 4 times as long as the first piece. If x represents the lengh of... more
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01/28/15

What percent of 65 is 13
Im stuck on a math problem on my math homework help?
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01/28/15

A bottle of fruit juice contains 20% water. How much water must be added to this bottle to produce 6L of fruit juice that is 60% water?
A bottle of fruit juice contains 20% water. How much water must be added to this bottle to produce 6L of fruit juice that is 60% water?  
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01/28/15

What's 500% as a fraction?
I needed fraction and decimal. I got the decimal. Please help.
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01/28/15

(2e^8.7n+1)-1= 25
2e8.7n+1-1= 45    Please help.  I do not understand how to solve.    TY 
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01/28/15

$60,000 is divided among a niece, a nephew, and a sister in the ratio 3:4:5. How much does the nephew receive?
 I don't understand how to begin to solve this problem: $60,000 is divided among a niece, a nephew, and a sister in the ratio 3:4:5. How much does the nephew receive?
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