Tutors Answer Your Questions about Miscellaneous Word Problems (FREE)
Question 1084967: Fred is twice as old as Bob.
Kim is 2 years older than Bob.
Jane is 5/4 as old as Kim.
Tim is one fourth as old as Jane.
Vanessa is four years older than Tim.
Miguel is 3 years younger than Vanessa.
Phillip is 3 times as old as Miguel.
Phillip's wife is 3 years younger than he is.
Phillip's son's age is one fifth of Phillip's wife.
His daughter is one third the age of his son.
Fred is 60.
Click here to see answer by MathLover1(20849)   |
Question 1084974: A park has a circular lake 240' in diameter. A walkway 6' wide is around the lake. Determine number of sq. yds. in the walk.
A = area.
240' = 80 yds., 6' = 2 yds.
A = pi(40 + 2)(40 - 2)
A = pi(42)(38)
A = pi(1596)
A = 5013.9936 = 5014 sq. yds.
Area of circle: pi * r^2
Area of lake: pi * 40 * 40 = 5026.56 = 5027 sq. yds.
Area of lake and walk: pi * 42 * 42 = 5541.7824 = 5542 sq. yds.
Area of walk: 5542 - 5027 = 515 sq. yds.
Where am I incorrect. Non-homework. Thanks.
Click here to see answer by Fombitz(32388)  |
Question 1084974: A park has a circular lake 240' in diameter. A walkway 6' wide is around the lake. Determine number of sq. yds. in the walk.
A = area.
240' = 80 yds., 6' = 2 yds.
A = pi(40 + 2)(40 - 2)
A = pi(42)(38)
A = pi(1596)
A = 5013.9936 = 5014 sq. yds.
Area of circle: pi * r^2
Area of lake: pi * 40 * 40 = 5026.56 = 5027 sq. yds.
Area of lake and walk: pi * 42 * 42 = 5541.7824 = 5542 sq. yds.
Area of walk: 5542 - 5027 = 515 sq. yds.
Where am I incorrect. Non-homework. Thanks.
Click here to see answer by MathLover1(20849) |
Question 1085178: A) Equal masses of water at 20 Celsius and iron at 40 Celsius are put together in a Styrofoam cup. The water has a specific heat of 1 cal/g C and the iron has a specific heat of 0.113 cal/g C. What do you think the final temp will be of both the water and the iron in the Styrofoam cup? Show your work.
B) What would happen if you combined equal masses of liquid water at 10 C with ice at 0 C? What do you think the final temp might be?
Click here to see answer by rothauserc(4718)  |
Question 1085178: A) Equal masses of water at 20 Celsius and iron at 40 Celsius are put together in a Styrofoam cup. The water has a specific heat of 1 cal/g C and the iron has a specific heat of 0.113 cal/g C. What do you think the final temp will be of both the water and the iron in the Styrofoam cup? Show your work.
B) What would happen if you combined equal masses of liquid water at 10 C with ice at 0 C? What do you think the final temp might be?
Click here to see answer by ikleyn(52756)  |
Question 1085178: A) Equal masses of water at 20 Celsius and iron at 40 Celsius are put together in a Styrofoam cup. The water has a specific heat of 1 cal/g C and the iron has a specific heat of 0.113 cal/g C. What do you think the final temp will be of both the water and the iron in the Styrofoam cup? Show your work.
B) What would happen if you combined equal masses of liquid water at 10 C with ice at 0 C? What do you think the final temp might be?
Click here to see answer by KMST(5328)  |
Question 1085198: The force due to gravity varies inversely as the square of the distance.
A 100 slug mass is pulled with a force of 50 lbs at 100 miles from a small
moon. What would the force be at 200 miles for the same object?
k=______
F=______
Any help is appreciated. Thank you very much.
Click here to see answer by Alan3354(69443)  |
Question 1085204: The magnetic force between an iron object and a magnet varies inversely as the square of the distance.
The force generated by a magnet on the refrigerator door with a 3 cm gap is 2 lbs.
What would the force be with a 1 cm gap?
Thank you for your time and help.
Click here to see answer by Alan3354(69443) |
Question 1085277: One farmer says to another farmer: “Give me one of your cows, and then I will have twice as many cows as you have.” The second farmer replies: “Why don’t you just give me one of your cows, and then we will both have the same number of cows?” How many cows does each farmer have?
Click here to see answer by emathwiz(15) |
Question 1085303: The students of a certain class agreedbto share $2800 expense required to paint the whole class.Five students couldn't contribute to that collection.So other students agreed to contribute the short amount equally.If every student who agreed to pa,happened to pay$ 10 more than what they previously paid,find the total number of the students in the class.?
Click here to see answer by Boreal(15235)  |
Question 1085303: The students of a certain class agreedbto share $2800 expense required to paint the whole class.Five students couldn't contribute to that collection.So other students agreed to contribute the short amount equally.If every student who agreed to pa,happened to pay$ 10 more than what they previously paid,find the total number of the students in the class.?
Click here to see answer by josmiceli(19441)  |
Question 1085303: The students of a certain class agreedbto share $2800 expense required to paint the whole class.Five students couldn't contribute to that collection.So other students agreed to contribute the short amount equally.If every student who agreed to pa,happened to pay$ 10 more than what they previously paid,find the total number of the students in the class.?
Click here to see answer by jorel1380(3719)  |
Question 1085344: Which scenario is most likely the one shown on the graph?
the total amount of money in the cash register, y, containing $50 in change and small bills and x $100 bills
the total number of puzzle pieces, y, in a brand new 50-piece puzzle, and x brand-new 100-piece puzzles
the total weight of the barbell, y, where the bar weighs 50 pounds and x 100-pound weights are added to it
the total number of calories, y, in a salad with vegetables containing 50 calories topped with x ounces of salad dressing at 100 calories per ounce
Click here to see answer by addingup(3677)  |
Question 1085422: A total of 364 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was three times the number of adult tickets sold. How many adult tickets were sold?
Click here to see answer by Boreal(15235) |
Question 1085405: Johnny starts his hike at his car site. He will take a break halfway between the car site and the campsite and then head on to the campsite. Use the diagram below to answer the questions.
(a graph of a coordinate plane. the max number for x is 13 and max number for y is 11. a dot that represents the car is on (2, 4) the dot to represent the campsite is at (13, 7)
A. What are the coordinate’s of the rest stop?
B. How many units did Johnny travel to get to the campsite?
C. If each unit represents 3.5 meters, how many meters from the car to the campsite?
Click here to see answer by Boreal(15235) |
Question 1085425: Tammy purchased a prepaid phone card for $30.Long distance calls cost 16 cents a minute using this card.Tammy used her card only once to make a long distance call. If the remaining credit on her card is $24.08, how many minutes did her call last?
Click here to see answer by josmiceli(19441) |
Question 1085481: The two-night attendance for a Friday/Saturday basketball tournament at the university of Connecticut was 2570. There were 522 more people on saturday for the finals than on Friday. How many people attended each night?
Click here to see answer by Boreal(15235) |
Question 1085512: A petting zoo is working to construct a rectangular pen. The pen will have 2 partitions to create separate spaces for goats,sheep,and pigs. The petting zoo has 1000 feet of fencing to use.
a. Write an area function (A(x)) that gives the area of the enclosure as a function of the length of a partition, x.
b. Find the dimensions of the pen that will provide the greatest area.
c. What is the maximum area that can be enclosed?
Click here to see answer by josmiceli(19441) |
Question 1085480: Karla's credit card bill is 420.90 part of the bill is previous month balance, part is new charges and part is from a late fee of 39.00. The previous balance is 172.40 less than the new charges. How much is the previous balance and how much is in new charges?
Click here to see answer by josmiceli(19441) |
Question 1085521: A petting zoo is working to construct a rectangular pen. The pen will have 1 partition to create separate spaces for goats and pigs. The petting zoo has 1000 feet of fencing to use.
a. Write an area function (A(x)) that gives the area of the enclosure as a function of the length of a partition, x.
b. Find the dimensions of the pen that will provide the greatest area.
c. What is the maximum area that can be enclosed?
Click here to see answer by josgarithmetic(39614) |
Question 1085557: a ladder leans against a building. the ladder is 25 ft long. The distance from the fllor to the top of the ladder is 3 ft greater than the distance from the building to the lower end of the ladder. Find the distance to the top of the ladder and the distance from the building to the lower end of the ladder.
Click here to see answer by ikleyn(52756) |
Question 1085653: 1. Given the following polynomial: 2x^2 + 7x - 15 = 0 Check all that apply.
The value of the discriminant is 169.
There are 2 real roots.
There are 2 irrational roots.
The graph intersects the y-axis twice.
The parabola is directed upward.
The axis of symmetry is located at: x = -7/4
The vertex is located at: (-7/4, -49/8)
The roots are: {5,3/2}
The graph intersects the y axis at (0, -15).
The graph intersects the x-axis at (-5, 0) and (1.5, 0)
II.
Use the quadratic formula to solve the following: 3x^2 - x + 2 = 0
Click here to see answer by MathLover1(20849) |
Question 1085682: I. Write the equation of a parabola, in standard form, that goes through these points:
(0, 3) (1, 4) (-1, -6)
II. Graph the parabola above. Indicate the vertex and axis of symmetry.
(the graph has a max and min number of -20 to 20, both x and y)
Click here to see answer by josgarithmetic(39614) |
Question 1085734: Write the equation of a parabola, in standard form, that goes through these points:
(0, 3) (1, 4) (-1, -6)
ax^2 + bx + c = y
a* 0^2+b*0+c=3
a*1^2+b+1+c=4
a*(-1)^2+b(-1)+c= -6
c = 3
a + b + c = 4
a – b + c = -6
a + b + 3 = 4
a – b + 3 = -6
2b = 10
b = 5
A = -4
-4x^2 + 5x + 3 = 0
Graph the parabola above. Indicate the vertex and axis of symmetry.
( i think got the above correct but I'm not as sure about how to graph this type of equation sorry for English)
Click here to see answer by jim_thompson5910(35256) |
Question 1085745: The height , h, in feet, of a bottle rocket is modeled by: h = -16t^2 +60t
where t is the time in seconds.
A. Factor the expression.
H = -16t^2 + 60t = 4t (-4t + 15)
B. What is the height of the rocket after 2 seconds?
When t = 2
H = 4t(-4 times 2 + 15) = 28
C. What is the height of the rocket after 3.75 seconds? Explain the solution.
When t = 3.75
H = 4t(-4 times 3.75 + 15) = 0
The Bottle Rocket should have landed after 3.75 seconds.
Click here to see answer by MathLover1(20849) |
Question 1085522: A petting zoo is working to construct a rectangular pen. The pen will have 3 partitions to create separate spaces for goats,sheep,horses,and pigs.The petting zoo has 1000 feet of fencing to use.
a. Write an area function (A(x)) that gives the area of the enclosure as a function of the length of a partition, x.
b. Find the dimensions of the pen that will provide the greatest area.
c. What is the maximum area that can be enclosed?''.
Click here to see answer by ankor@dixie-net.com(22740)  |
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