Questions on Word Problems: Miscellaneous Word Problems answered by real tutors!

Tutors Answer Your Questions about Miscellaneous Word Problems (FREE)

Question 199052: please help my teacher is still saying this is wrong I don't know what I'm doing wrong please explain thank you so much.....
1.Write the converse, inverse, and contrapositive of the following conditional statement
If the sun is shining, then it will not rain.
Click here to see answer by solver91311(16897)

Question 199054: I need your assistant for this problem please help try it twice. thank you so much.

1.Determine whether the argument is valid or invalid.
A tree has green leaves and the tree produces oxygen.
This tree has green leaves
------------------------------------------------------------------------
 This tree produces oxygen.
Click here to see answer by RAY100(1637)

Question 196913: This was a question from a quiz and I didn't know how to answer it. Can someone please help?

Label each of the following as an observational or experimental study.
For the experimental study state the control group and the treatment group.
a. A manager divides her staff into two groups. One group is allowed to work from home, while the other continues working from their offices. The manager then measures which group is more productive.
b. A researcher finds that people living within 500 feet of power lines have a higher incidence of cancer than those living more than 500 feet from power lines

Click here to see answer by sunsunny3235(5)

Question 199165: What do we gain by studying geometry? Do you see any geometric concepts being used in your area of expertise or in your day-to-day experiences? Explain.

Click here to see answer by rfer(12662)

Question 199170: A drug manufacturing company wants to manufacture a capsule that contains a spherical pill inside. The diameter of the pill is 4mm and the capsule is cylindrical, with hemispheres on either end. The length of the capsule between the two hemispheres is 10mm. Describe how we could find the exact volume the capsule will hold, excluding the volume of the pill. What is the value that you get from your calculation? Why is it important for us to be able to determine the exact volume of that capsule?
I keep coming up with the wrong answer, this is the last chance my teacher will give me can someone please help.?
Click here to see answer by Alan3354(30993)

Question 199196: I submited 4 question for help on friday and saturday but I did not even get a respond can you tell me if there's something wrong I even look to see if there were a problem close to mines please respond I thank you inadvance I'm new to this website. so I really don't know how thing really works. Terrie Brown
Click here to see answer by Alan3354(30993)

Question 198946: Plot the graphs of the following functions. Scan the graphs and post them to the Facilitator along with your response.
Justify your answer.
1.f(x) = 5x
2.f(x) = 4x+2
3.f(x) = (1/3)x
Someone please help me!
Click here to see answer by Alan3354(30993)

Question 199234: please i need someone help can anyone answer this problem for me I miss this on my quiz

Determine the truth value of the following statement.
rembrandt was a famous painter and all prime numders are odd.
Click here to see answer by Alan3354(30993)

Question 199281: Find a polynomial for the perimenter and the area. The figure is a square and on the top of it, it says, "y+8" and on the right side it says, "y". I couldn't download the square to show you. My instructions are to find the perimeter and area and to simplify the answer and do not factor.
Click here to see answer by rfer(12662)

Question 199290: DIMENSIONS OF A BOX: A box with a square base and no top is to be made from a square piece of cardboard by cutting 4-in. squares from each corner and folding up the sides, as shown in the figure. The box is to hold 100 in.^3. How big a piece of cardboard is needed?
Click here to see answer by RAY100(1637)

Question 199283: Use rational exponents to write x^1/5*y^1/3*z^1/6 as a single radical expression.
Click here to see answer by Edwin McCravy(8909)

Question 199289: Rewrite the following expression with positive exponents. (40xy)^-4/9
Click here to see answer by checkley77(12569)

Question 199288: Convert to decimal notation. 8.15*10^7. Simplify your answer and type an integer or decimal.
Click here to see answer by rfer(12662)

Question 199287: What does it mean to refer to a 20-inch tv set or a 25-inch tv set? Such units refer to the diagonal of the screen. A 30-inch tv set also has a width of 24 inches. What is its height?
Click here to see answer by rfer(12662)

Question 199286: A rectangular bedroom is 7ft. longer than it is wide. Its area is 875ft.^2. What are its dimensions?
Click here to see answer by edjones(7569)

Question 199319: DIMENSIONS OF A GARDEN: A rectangular garden is 10ft. longer than it is wide. Its area is 875ft.^2. What are its dImensions?
Click here to see answer by jojo14344(1512)

Question 199355: I am thinking of a whole number. If I divide it by 13, then multiply the answer by 12, then subtract 20, and then add 89, I end up with 93. What was my original number?
Click here to see answer by ankor@dixie-net.com(15656)

Question 199356: A student argues that the following fraction is not a rational number because it is not the quotient of two integers. 2/3/3/4 (fraction over a fraction). How do you respond?
Click here to see answer by solver91311(16897)

Question 199508: A 45-foot rope is to be cut into three pieces. The second piece must be twice as long as the first piece and the third peice must be 9 feet longer than 3 times the length of the second piece. How long should each three peices be?
How do I write this problem algibraicly? How do I solve it? My Final is tomarrow please help.
-Andrew
Click here to see answer by jim_thompson5910(28595)

Question 199596: Peter leaves at a speed of 16km/h and 1 1/2 hours later Bob starts out at 20 km/h. How long does it take until Bob has covered 1/2 Peter's distance? What distance will each have travelled at this point?
Click here to see answer by ankor@dixie-net.com(15656)

Question 199671: once again your assistant is needed thank you T-Aun
A box of chocolates contains 20 identically shaped chocolates. Four of them are filled with jelly, seven are filled with caramel, and nine are filled with nuts. What is the probability that one chocolate chosen at random is filled with caramel or nuts?

Click here to see answer by checkley77(12569)

Question 199670: I'm new to this site I really can use someone assistant in helping me understand this problem thank you-T-Aun.
How many different three-digit numbers can be formed from the digits 0 through 9 if the first digit must be odd and the last digit must be even?

Click here to see answer by checkley77(12569)

Question 199664: please help I missed this one too.
One card is selected at random from a standard 52-card deck of playing cards. Find the probability that the card selected is not a red card.

Click here to see answer by checkley77(12569)

Question 199672: I am not good at math at all please don't get up-set with me please. I need your help again thank you very much T-Aun
A card is selected from a deck of 52 playing cards. Find the probability of selecting
a) a seven given the card is a not a face card. (An ace is not a face card.)
b) a spade given the card is red.

Click here to see answer by Alan3354(30993)

Question 199665: I study hard for this quiz and I still got it wrong please explain. help help
The odds against Lightning winning the third race are 9:4. If Sally places an $8 bet on Lightning to win and Lightning wins, find Sally’s net winnings
Click here to see answer by solver91311(16897)

Question 199663: I missed this one on my quiz please help thank you.
The last 50 violent crimes committed in Maryville were 9 homicides, 24 robberies, and 17 assaults. What is the empirical probability that the next violent crime committed in Maryville will be an assault?
Click here to see answer by solver91311(16897)

Question 199667: Hello is anyone here to help me I really can use some help please thank you
1000 raffle tickets are sold at $3 each. One grand prize of $100 and two consolation prizes of $75 will be awarded. Find Jake’s expectation if he purchases one ticket.
Click here to see answer by edjones(7569)

Question 199661: I miss this on my quiz please explain to me so I will know the next time thank you
Last fall, a gardener planted 74 tulip bulbs. She found that only 62 of the bulbs bloomed in the spring.
a) Find the empirical probability that a tulip bulb of this type will bloom
b) How many of the bulbs should she plant next fall if she would like at least 95 to bloom?

Click here to see answer by stanbon(57361)

Question 199764: A painting canvas has a length 8 inches longer than its width. If the area is 84 in^2, what are the dimensions of the canvas?
A) 16 inches by 6 inches
B) 15 inches by 7 inches
C) 13 inches by 5 inches
D) 14 inches by 6 inches
Click here to see answer by solver91311(16897)

Question 199760: Melissa plans to ship a computer in a cubic box that measures x inches on a side. She later determines that her shipping cost will be less if she uses a rectangular box that is 3 inches shorter and 5 inches longer than the cubic box. Write an equation V(x) for the volume of the new box and match your result to the correct answer below.
A) V(x)=x^3-15xin^3
B) V(x)=x^3+2x-15in^3
C) V(x)=x^3-2x^2-15xin^3
D) V(x)=x^3+2x^2-15xin^3
Click here to see answer by tutor_paul(490)

Question 199824: A red ball and a green ball are simultaneously tossed into the air. The red ball is given an initial velocity of 96 feet per second, and its height t seconds after it is tossed is 16t2 + 96t feet. The green ball
is given an initial velocity of 80 feet per second, and its
height t seconds after it is tossed is 16t2 + 80t feet.
a) Find a polynomial D(t) that represents the difference in
the heights of the two balls.
b) How much higher is the red ball 2 seconds after the
balls are tossed?
c) In reality, when does the difference in the heights stop increasing?
Click here to see answer by ankor@dixie-net.com(15656)

Question 199852: Please help me solve the following problem:
in a certain company, 30 percent of men and 20 percent of women attend night school. If 40 percent of all employees are men, what % of ALL employees attend night school?

Click here to see answer by RAY100(1637)

Question 199870: I still got this one wrong again please help miss this on my quiz.

A license plate is to consist of three letters followed by two digits. How many different license plates are possible if the first letter must be a vowel (a, e, i, o, u), and repetition of letters is not permitted, but repetition of digits is permitted?

Click here to see answer by Alan3354(30993)

Question 199908: Avoiding a collision. A car is traveling on a road that
is perpendicular to a railroad track. When the car is
30 meters from the crossing, the car’s new collision
detector warns the driver that there is a train 50 meters
from the car and heading toward the same crossing. How
far is the train from the crossing?
Click here to see answer by rfer(12662)

Question 199914: Janet sells 'designer chocolates.' Bonbons cost $2 a pound, while truffles cost $5 a pound. Janet has five pounds of bonbons, to which she wants to add just enough truffles to result in a $3-a-pound chocolate mixture. How many pounds of truffles should she use?
I am having problems coming up with what formula to use and how i am supposed to properly solve this?
Click here to see answer by scott8148(6628)

Question 199878: according to recent study, the gas mileage of an automobile decreases by ten percent for every 5 miles per hour over 55 mph that is driven. The car gets 30 miles per gallon at 55 mph.
A. Create a function that models the mileage of the car as a function of miles per hour over 55. Graph the function on the axes and label ana then use the graph to answer the following questions
B. What is the cars mileage at 65 mph?
C. When the car is driven at 70 miles an hour how many miles per gallon is the car getting.
D. What is the fastest that the car can drive and still get 15 miles per gallon
E. When there is only 1.5 gallons of gas left in the car and 54 miles to drive home what is the fastest that the car can drive and still have enough gas to get home?
Click here to see answer by ankor@dixie-net.com(15656)

Question 199909: Venture capital. Henry invested $12,000 in a new
restaurant. When the restaurant was sold two years
later, he received $27,000. Find his average annual
return by solving the equation 12,000(1 + r)^2=
27,000.
Click here to see answer by tutorcecilia(2152)

Question 199989: In an interview of 50 math majors,
12 liked calculus and geometry
18 liked calculus but not algebra
4 liked calculus, algebra, and geometry
25 liked calculus
15 liked geometry
10 liked algebra but neither calculus nor geometry
2 liked geometry and algebra but not calculus.
Of those surveyed, how many liked calculus and algebra?
Click here to see answer by rfer(12662)

Question 199841: A card is selected from a deck of 52 playing cards. Find the probability of selecting
a)a seven given the card is a not a face card. (An ace is not a face card.)
b)a spade given the card is red.
Click here to see answer by edjones(7569)

Question 199821: If the diameter of a circle is
1.3 * 10^12 meters, then what is its radius?
Click here to see answer by edjones(7569)

Question 200027: Two angles are complementary, the sum of the measure of the first angle and 1/4 the second angle is 60 degrees. Find the measures of the angles. Please help.
Smaller angle?
Other angle?
Click here to see answer by scott8148(6628)

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