Tutors Answer Your Questions about Miscellaneous Word Problems (FREE)
Question 55023: Brendi,Nicki sell memberships in an automobile club over the telephone. Brenda sells one membership every 0.125 hour and nicki sells one membership every 0.1 hour. At what rate ( in memberships per hour) are the memberships being sold when both are working?
Click here to see answer by Earlsdon(4900)   |
Question 55020: In 2004 the population of the US was 294.4 million. If the population grows at a rate of 1.05%
then the population in the year 2015 will be 294.4million(1.0105) to the 11th power.
A) Evaluate the expression to find the predictrd population in 2015 to the nearest tenth of a million people.
B) Which year will the population will reach 350 million people.
Click here to see answer by Earlsdon(4900) |
Question 54869: Hello, I could really use some help with this ptoblem, thanks! A student averages 84 on five tests. If the student received grades of 84, 82, 81, and 79 on the first four exams, what grade did the student receive on the fifth exam?
Click here to see answer by funmath(2873) |
Question 54996: please help me with this word problem
A farmer recently passed away. He willed his 17 cattle to his 3 sons. The oldest son is to recieve a half of the cattle, the middle son is to recieve a third of the cattle and the youngest son is to recieve one-ninth of the cattle. The bothers were up in arms. The brothers argued on how to solve the problem until an uncle solved the problem. The uncle used a catalyst to solve the dilemma. (none of the cattle could be split, everyone recieved a whole animal.)
1, Why were the brothere arguing?
2, What is a catalyst?
3, How were the cattle split?
Thank You!!
Click here to see answer by Cintchr(475) |
Question 55076: For the following problem, I know A = l w, is it l=w+2 and A=60? 60=w+2(w) being the final?
The length of a rectangle is 2 cm greater than twice its width. If the area of the rectangle is 60 cm , find the length of the rectangle.
Click here to see answer by stanbon(26297) |
Question 55204: I have this problem that I would like someone to check my work:
If a skydiver jumps from an airplane at a height of 8256 feet, then for the first five seconds, her height above the earth is approximated by the formula h = -16t^2 + 8256. How many seconds does it take her to reach 8000 feet?
WORK DONE :
What I have done is:
h = 16^t + 8256
h = -16t^2 + 8256 = 8000
h = -16t^2 + 8256 - 8000 = 0
-16t^2 + 256 = 0
-16t^2 + 256 - 256 = - 256
16t^2 = -256
-16t^2/16 = -256/-16
t^2 = 16
t = 4
I'm not confident about the way I have worked this out. Could someone check.
Click here to see answer by venugopalramana(3286)  |
Question 55206: I need help with theese two question, Please.
1. The Nutty Professor store wishes to mix peanuts that sell for $2 per pound with cashews that sell for $6 per pound. The store plans to use five pounds more of peanuts than cashews and sell the mixture for $26. How many pounds of each nut should be used in the mixture?
AND this question too!
2. A stock portfolio is currently valued at $5872.44. IBM is currently selling at $82.01 per share and Microsoft is currently selling at $26.52 per share. If the number of IBM shares is 25 less than the number of Microsoft shares, find the number of shares of each.
Click here to see answer by stanbon(26297) |
Question 55225: Travis made 44 and 72 on the first two tests in algebra and has one test remaining. The average on the three tests must be at least 60 for Travis to pass the course. Let s represent his score on the last test.
Write an inequality to describe each situation.
Click here to see answer by venugopalramana(3286) |
Question 55226: Tilak made 44 and 72 on the first two tests in algebra, and has one test remaining. For Tilak to pass
the course, the average on the three tests must be at least 60. For what range of scores on his last test will Tilak pass the course?
Solve the problem by using an inequality.
Click here to see answer by venugopalramana(3286) |
Question 55223: In 2000 there were 48.5 births per 1000 females 15 to 19 years of age. This birth rate is 4/5 of the birth rate for teenagers in 1991.
a)Write an equation and solve it to find the brith rate for teenagers in 1991.
b)What will be the birth rate for teenagers in 1996, if there were 55 births per 1000 females?
Click here to see answer by funmath(2873) |
Question 55294: Tilak made 44 and 72 on the first two tests in algebra, and has one test remaining. For Tilak to pass
the course, the average on the three tests must be at least 60. For what range of scores on his last test will Tilak pass the course?
Solve the problem by using an inequality.: Tilak made 44 and 72 on the first two tests in algebra, and has one test remaining. For Tilak to pass
the course, the average on the three tests must be at least 60. For what range of scores on his last test will Tilak pass the course?
Solve the problem by using an inequality.
Click here to see answer by ankor@dixie-net.com(6693)  |
Question 55345: Gumballs cost 5 cents each. There are gum balls of 5 different colors in the machine. You can't see them because it is dark. What would be the least number of nickels you would have to spend to be sure of getting at least 3 gum balls of the same color?
i keep getting 11 as an answer, but am not sure if i am right. can u help?
Click here to see answer by stanbon(26297) |
Question 55428: I need help with these two word problems. I can not figure them out.
1. Adult tickets for a play cost $4 and child tickets cost $1. If there were 23 people at a performance and the theater collected $80 from ticket sales, how many children attended the play?
2.Tickets for an event cost $4 for children, $12 for adults, and $7 for senior citizens. The total ticket sales were $1920. There were 50 more adult tickets sold than child tickets, and the number of senior citizens tickets were 4 times the number of child tickets. How many of each ticket were sold?
Click here to see answer by piyu(4) |
Question 55389: A man has found work sharpening saw blades. For each saw he sharpens up to 200 in a week he is paid 80 cents. For blades in excess of 200 in a week he is paid $1.25 each. His wages are docked 50 cents for each blade he ruins during the sharpening process. Find his gross wages for a week in which he correctly sharpens 312 blades and ruins 10.
Click here to see answer by ankor@dixie-net.com(6693) |
Question 55539: If the inventor in exercise 53(see below) charges $4 per unit,then her profit for producing and selling x units is given by the function
P(x) =2.25x-7000
a. what is her profit if she sells 2000 units?
b. Waht is her profti if she sells 5000 units?
c. what is the break-even point for sales?
53. from above
Th inventor of a new product believes that the cost of producing the product is given by funciton C(x)=1.75x+7000
Mcgraw hill 6th edition, chapter 7.5, exercise # 54.
Thanks fo much for your valuable time!!!
Click here to see answer by Hook(36) |
Question 55630: Two isosceles triangles have the same base length. The legs of one of the triangles are twice as long as the legs of the other. Find the lengths of the sides of the triangles if their perimeters are 23 cm and 41 cm.
Click here to see answer by Paul(988) |
Question 55717: I got this really strange problem! It says: The combined resistance of two resistors R1 and R2 in a parallel circuit is given by the formula
Rr= 1
----
1/R1+1/R2 Simplify the formula.
(the 1 and the two are tiny and sit down on the right of the R's)
Well I ended up with
Rr= 1
----
2/R1+R2
Would this be correct or is there a different way to do this?
Thanks so much!!!
ac
Click here to see answer by stanbon(26297) |
Question 56077: The rectangle ABCD is inscribed in the circle with center(0,0) and radius 6. The x-coordinate of the vertex A is expressed as x. (Shows a diagram with an x and y axis. A circle, with a square inside it where each of the 4 corners of the square touches the circle. And a point A at the top right corner labeled as point A (x,y). Where A is the vertex.)
Then express the area S of the rectangle ABCD as a function of x in the form: A(x) = b*x*sqr(c-x^2)
Where b and c are coefficients.
I have tried area=base*height which gives the formula area= x^2+Y^2=12^2. I just am not sure where to go from here or if I am even on the right track.
Click here to see answer by venugopalramana(3286) |
Question 56289: Swimming space
The length of a rectangular swimming pool is 2x – 1 meters, and the width is x + 2 meters. Write a polynomial that represents the area. Find the area if x is 5 meters.
i have a hard time with word problems
Click here to see answer by stanbon(26297) |
Question 56291: Square lot
Sam lives on a lot that he thought was a square, 157 feet by 157 feet. When he had it surveyed, he discovered that one side was actually 2 feet longer than he thought and the other side was actually 2 feet shorter then he thought. How much area does he have?
Click here to see answer by stanbon(26297) |
Question 56292: Please can anyone please help?
Compounded semiannually
P dollars is invested at annual interest rate r for 1 year. If the interest is compounded semiannually, then the polynomial P (1 + r/2)^2 represented the value of the investment after 1 year. Rewrite this expression with out parentheses. Evaluate the polynomial if
p = $200. and r = 10 %
Click here to see answer by stanbon(26297) |
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