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

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Question 86938: I can't seem to understand how to do this also I will like to see if you can verify my answer on the second exersize?
1.Evaluate. | �9 | � | 2 |
2. Multiply. Multiply. (-5/8)(40)= -5/8 x 40/1= 200/8= 25
I found the common denominator for 200 and 8 then I divided and then equal 25

Click here to see answer by stanbon(75887)

Question 86843: solve and check
Of 30 students in a class, 15 passed. What percentage of the students passed?
Click here to see answer by 303795(602)

Question 86960: If the sum of two numbers is 30 and one of the nubers is x, write the product of the two numbers as a function of x.
This is what I had: n+x=30
x=30-n
f(x)=(30-n)(n)

Click here to see answer by scott8148(6628)

Question 86940: please I need help with this problems..thank you
2. Express 33% as a fraction.

5.List all the factors of 45.
The factors of 45 are 5 and 9
5x9=45
9x5=45

8. If a = 2 and b = �1, evaluate 2a + 5b.

9. List the like terms in the following group of terms.
6x, �7wx2, 4w2x, 8wx2, �2wx2, �9w2

10. Evaluate. 42 + 2�7 � (5 � 4 � 15)

11. Simplify: �(�(�1)).

12. Use the properties of addition and multiplication to complete the statement.
(17 + 0) + 5 = 17 + ( ____ + 5)

13.Find the GCF of 6, 18, and 30.
GCF for 6.18 and 30 is 90

14. Convert 0.34 to a fraction and write your answer in lowest terms.

16. Evaluate. 3 � 62 � 8 � 7=

17. Find the LCM for 8 and 12.

19. Write the following phrase using symbols. Use the variable x to represent the number.
A number increased by by 1

Click here to see answer by 303795(602)

Question 86967: Can you walk me thru this problem
Simplify: �(�(�1)).

Click here to see answer by Edwin McCravy(20054)

Question 86971: I need some help on this
Evaluate. 3 � 62 � 8 � 7=

Click here to see answer by Edwin McCravy(20054)

Question 86970: Please help
Convert 0.34 to a fraction and write your answer in lowest terms
Click here to see answer by Edwin McCravy(20054)

Question 86969: I need help with this problem
Evaluate. 42 + 2�7 � (5 � 4 � 15)
Click here to see answer by scianci(186)

Question 86965: Pleae help I don't remember how to this
2. Express 33% as a fraction
Click here to see answer by scianci(186)

Question 86959: PLEASE HELP ME TO SOLVE THE FOLLOWING PROBLEMS:
1) A ball is thrown downward from a window in a tall building. Its position at time t in seconds is s = -16t^2 + 32t, where s is in feet. How long (to the nearest tenth) will it take the ball to fall 81 feet?
2) Your company uses the quadratic model y = -11x^2 + 350x to represent how many units (y) of a new product will be sold (x) weeks after its release . How many units can you expect to sell in week 3?
3) The area of a square is numerically 3 less than the perimeter. Find the length of the side, if the side is greater than 1.
4) A ball is dropped from a cliff that is 352 feet high. The distance S (in feet) that it falls in t seconds is given by the formula S =16t^2. How many seconds (to tenths) will it take for the ball to hit the ground?
Click here to see answer by scianci(186)

Question 86968: Please help
Use the properties of addition and multiplication to complete the statement.
(17 + 0) + 5 = 17 + ( ____ + 5)

Click here to see answer by checkley75(3666)

Question 86962: Please help
Write the following phrase using symbols. Use the variable x to represent the number.
A number increased by by 1

Click here to see answer by checkley75(3666)

Question 86961: Draw a graph of f(x)=x^2. Use it to properly draw a graph of g(x)=(x-50)^2+100. What must be done to properly graph g(x)?
Click here to see answer by Edwin McCravy(20054)

Question 86966: Please help
List the like terms in the following group of terms.
6x, �7wx2, 4w2x, 8wx2, �2wx2, �9w2

Click here to see answer by tutorcecilia(2152)

Question 86824: Given 10 sample values
9,25,22,14,11,15, 21,19,13,23
_
Sample mean=x=
Sample mode=
sample median=
sample range=
sample standard deviation=

Click here to see answer by Edwin McCravy(20054)

Question 86986: Pressure varies inversly as volume. When the pressure is 16 pascals, the volume is 84 liters. What would the volume be if the pressure is reduced to 12 pascals?
Click here to see answer by stanbon(75887)

Question 86820: The odds against a horse winning a race are 6 to 5. What is the probability of the horse winning the race?
Click here to see answer by Edwin McCravy(20054)

Question 87020: Please help. Instructions read- construct an algebraic relationship for this problem. Monthly water bill is equal to $55 for the first 6000 gallons (or any portion thereof) plus the number of gallons used in excess of 6000 gallons times $0.20 per gallon. Thanks for your help
Samantha
Click here to see answer by scianci(186)

Question 87191: I would appreciate if a tutor would teach me how to solve the following word problems step by step.
1) Solve the problem.
The height of a box is 8 inches. The length is three inches more than the width. Find the width if the volume is 560.
Question 3 answers
8 in.
10 in.
70 in.
7 in.
2) Solve the problem.
A square lawn has an area of 1568 square feet. A sprinkler placed at the center of the lawn sprays a water in a circular pattern that just covers the lawn. What is the radius of the circle?
Question 4 answers
39.6 feet
28 feet
56 feet
19.8 feet
3) Answer the question.
If a rectangle is x feet long and y feet wide, which one of the following expressions is the length of its diagonal in terms of x and y?
Question 5 answers
x2 + y2
x + y
square root x+y
square root x^2 + y^2
4) Solve the problem.
The area of a square is numerically 117 more than the perimeter. Find the length of the side.
Question 6 answers
85 units
52 units
13 units
338 units

Click here to see answer by checkley75(3666)

Question 87236: Please solve the problem, if possible step by step
A rock falls from a tower that is 73.5 m high. As it is falling, its height is given by the formula h = 735 - 4.9t^2, with t in seconds. How many seconds will it take for the rock to hit the ground (h = 0)?
Question 10 answers
8.3 sec
3.9 sec
1102.5 sec
8.6 sec
Click here to see answer by Earlsdon(6294)

Question 87271: In a town election, the winning candidate had 220 more votes than the loser. If 810 votes were cast in all, how many votes did each candidate receive?
Click here to see answer by jim_thompson5910(35256)

Question 87243: Create one statement in English representing an algebraic relationship
Click here to see answer by tutorcecilia(2152)

Question 87272: A small firm produces both AM and AM/FM car radios. The AM radios take 15h to produce, and the AM/FM radios take 20h. The number of production hours is limited to 300h per week. The plant's capacity is limited to a total of 18 radios per week, and existing orders require that at least 4 AM radios and at least 3 AM/FM radios be produced per week. Write a system of inequalities representing this situation. Then, draw a graph of the feasible region given these conditions, in which x is the number of AM radios and y the number of AM/FM radios
Click here to see answer by favegirl13(22)

Question 87440: Please help with this problem the text book do not show clearly how to do it
Rose' s garden is in the shape of a trapezoid. If the height of the trapezoid is 16m, one base is 20m, and the area is 224m�, find the length of the other base.
Click here to see answer by stanbon(75887)

Question 87443: PLEASE HELP I AM A LITTLE BIT CONFUSED THANK YOU
Yuri has a board that is 98 in. long. He wishes to cut the board into two pieces so that one piece will be 10 in. longer than the other. What should the length of each piece be?
Click here to see answer by scott8148(6628)

Question 87442: PLEASE HELP I AM A LITTLE BIT CONFUSED THANK YOU
The sum of two consecutive integers is 145. Find the two integers.
Click here to see answer by scott8148(6628)

Question 87448: Please help
The quotient of x minus two divided by four plus twelve equals fourteen
Click here to see answer by scott8148(6628)

Question 87538: A computer locks up if more than 4 applications are running simultaneously. If the owner has 20 applications stored in his program file, how many different sets of 4 can he run, so that his cmpuer does not lock up?
Click here to see answer by stanbon(75887)

Question 87600: The number 56 is 87 1/2% of?
Click here to see answer by stanbon(75887)

Question 87603: If A and B are sets whose union is B, then it must be true that...
Click here to see answer by stanbon(75887)

Question 87614: Please i need help with this problem:
Assuming that on a blueprint 1/4 inch equals 12 inches, the actual length in feet of a steel bar represented on the blueprint by a line 3 3/8 inches long is.....
Click here to see answer by stanbon(75887)

Question 87619: Please i need help with this problem:
If mrs. Jones bought 3 3/4 yards of dacron at $1.16 per yard and 4 2/3 yards of velvet at $3.87 per yard, the amount of change she recieves from $25 is...
Click here to see answer by stanbon(75887)

Question 87599: The number 56 is 87 1/2% of?
Click here to see answer by SandySharma(35)

Question 87623: Please i need help on this question:
If one angle of a triangle is tree times a second angle and the third angle is 20 degrees more than the second angle, the SECOND ANGLE is.....
Click here to see answer by Earlsdon(6294)

Question 87627: Please i need help on this question:

A plane leaves Denver, colorado, on June 1st at 1 p.m. Mountain Standard Time and arrives at New York City on June 2nd at 2 A.m. Eastern Daylight Saving Time. the actual time of this flight was...
A. 10 hours B. 11 hours C. 12 hours D. 13 hours
Click here to see answer by rapaljer(4671)

Question 87637: Please i need help on this question:

Of the following, the most nearly accurate set of equivalents is:
A. 1ft. equals 30.48 centimeters B. 1 centimeter equals 2.54 inches
C. 1 rod equals 3.28 meters D. 1 meter equals 1.09 feet
Click here to see answer by rapaljer(4671)

Question 87633: Please i need help on this question:

If 1 1/2 cups of cereal are used with 4 1/2 cups of water, the amount of water needed with 3/4 of a cup of cereal is...
A. 2 cups B. 2 1/8 cups C. 2 1/4 cups D. 2 1/2 cups
Click here to see answer by SandySharma(35)

Question 87635: Please i need help on this question:

Under certain conditions, sound travels at about 1100 ft. per second. If 88 ft. per second is approximately equivalent to 60 miles per hour, the speed of sound, under the above conditions, is, of the following, closest to:
A. 730 miles per hour B. 740 miles per hour C. 750 miles per hour
D. 760 miles per hour
Click here to see answer by rapaljer(4671)

Question 87617: Please i need help with this problem:
The water level of a swimming pool, 75 feet by 42 feet, is to be raised 4 inches. The number of gallons of water needed for this purpose is....
(1 cubic foot equals 7 1/2 gallons)
Click here to see answer by rapaljer(4671)

Question 87629: Please i need help on this question:

The cost of 63 inches of ribbon at 12 cents per yard is...
A. $.20 B. $.21 C. $.22 D. $.23
Click here to see answer by SandySharma(35)

Question 87647: A ladder 10 ft long leans against a wall. The bottom of the ladder is 6 ft from the wall. How much would the lower end of the ladder have to be pulled away so that the top end would be pulled down by 3 ft?
thnx..
Click here to see answer by longjonsilver(2297)

Question 87628: Please i need help on this question:

A plane leaves Denver, colorado, on June 1st at 1 p.m. Mountain Standard Time and arrives at New York City on June 2nd at 2 A.m. Eastern Daylight Saving Time. the actual time of this flight was...
A. 10 hours B. 11 hours C. 12 hours D. 13 hours
Click here to see answer by stanbon(75887)

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