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October 20, 2014

October 20, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**math**

What is (-7)^5 in expanded form? 1.-7*-7*-7*-7*-7 2.-7*5 3.(-7)*7*(-7)*7*-7 4.5*5*5*5*5*5*7 IS IT D
*Thursday, September 18, 2014 at 12:43pm*

**Math**

A Registered Education Savings Plan (RESP) earns interest at a rate of 5% per year, compounded annually. Jasmine’s parents invest $4000 in the account today. a) Determine an explicit formula to represent the value of the investment. (2 marks) b) Use your formula to write ...
*Thursday, September 18, 2014 at 12:42pm*

**MATH WORD PROBLEM**

Lisa needed to borrow money from Kim. Kim said to he would have to pay him back one and half times the original sum plus $20. Kim paid a total of $200. What was the original amount Lisa Borrowed?
*Thursday, September 18, 2014 at 12:37pm*

** math**

Which of the following situations describe quantities that combine to make 0? During the top of the fourth inning of a baseball game, the Ravens scored three runs. During the bottom of the fourth inning, the Raiders scored five runs to tie the game. Jacoby went on a hiking ...
*Thursday, September 18, 2014 at 12:33pm*

**Math**

The first prize in a lottery is $250 000. Each winner chosen after the first is paid 20% as much as the winner before them. b) Determine an explicit formula for the general term. (2 marks) c) Determine a formula for the sum of n terms of the geometric sequence. (2 marks) d) If...
*Thursday, September 18, 2014 at 12:26pm*

**math**

If sales tax is 1/16 of the price and the price is $16 how much tax do I pay?
*Thursday, September 18, 2014 at 7:01am*

**math**

3px-3pt-x+y
*Thursday, September 18, 2014 at 6:52am*

**math**

Each interior angle of a regular polygon is 140 degree. the number of sides of the polygon is?
*Thursday, September 18, 2014 at 4:57am*

**math**

The ratio of two numbers is 3:4 and their HCF is 6. Their LCM IS?
*Thursday, September 18, 2014 at 4:55am*

**math**

if 150 is the third proportional to 6 and x ; find the value of x.
*Thursday, September 18, 2014 at 4:09am*

**Math algebra**

what do you call an alligator that sneaks up and bites you from behind
*Thursday, September 18, 2014 at 4:05am*

**math**

A fraction becomes 1/2 when 3 is subtracted from its numerator. If 5 and 7 are respectively added to its numerator and denominator, it becomes 3\4 then, the LCM of the numerator and denominator of the said fraction,must be
*Thursday, September 18, 2014 at 4:04am*

**science/math**

a skateboarder traveling at 7.0 meters per second rolls to a stop at the top of a ramp in 3.0 seconds. what is the skateboarders acceleration? is 2.3m/s correct
*Thursday, September 18, 2014 at 12:30am*

**science/math**

a cyclist accelerates at a rate of 7.0m/s^2. how long will it take the cyclist to reach a speed of 18m/s? my answer is 2.5seconds. is this correct?
*Thursday, September 18, 2014 at 12:28am*

**science/math**

after traveling for 6.0 seconds, a runner reaches a speed of 10m/s. what is the runners acceleration? my answer is 60m/s , is that correct?
*Thursday, September 18, 2014 at 12:26am*

**science/math**

a car starting from rest accelerates at a rate of 8.0 m/s. what is its final speed at the end of 4.0 seconds?I got 32m/s, is this correct
*Thursday, September 18, 2014 at 12:23am*

**Math**

How do you reflect -0.25x + 5 across the x-axis?
*Thursday, September 18, 2014 at 12:22am*

**science/math**

as she climbs a hill, a cyclist slows down from 25mi/hr to 6mi/hr in 10 seconds. what is her deceleration? my answer is -1.9 is this correct or should it be a positive 1.9...am confused
*Thursday, September 18, 2014 at 12:20am*

**math**

dy/dx+[(1-y^2)/(1-x^2)]=0
*Thursday, September 18, 2014 at 12:00am*

**math**

Ashton broke apart a number into 30+7. What number did he start with?
*Wednesday, September 17, 2014 at 11:59pm*

**math**

If you know the order from least to greatest of 5 negative rational numbers, how can you use the information to order the absolute values of those numbers from least to greatest
*Wednesday, September 17, 2014 at 11:58pm*

**sixth grade math**

Multiply. Write each product in simplest form. 1. 2 3/8 * 1 3/5 = 3 4/5 2. 1 5/6 * 2/3 = 11/10 3. 7/8 * 3 1/3 = 35/27 Do I have the correct answers? If not can someone show how to solve them?
*Wednesday, September 17, 2014 at 11:37pm*

**Math**

Students surveyed boys and girls separately to determine which sport was enjoyed the most. After completing the boy survey, it was determined that for every 3 boys who enjoyed soccer, 5 boys enjoyed basketball. The girl survey had a ratio of the number of girls who enjoyed ...
*Wednesday, September 17, 2014 at 11:22pm*

**math**

your team has two x·sq-tiles, three x-tiles, and one unit tile on his desk and another person has one x·sq- tile, five x-tiles, and eight unit tiles on her desk. You decide to put all of the tiles together on one desk. What is the name for this new group of tiles?
*Wednesday, September 17, 2014 at 11:13pm*

**math**

Please help me with this problem: Jhon missed 5 points out of 100 points on his math test. What decimal number represents the part of his math test he answered correctly? my answer is 0.95. my work: 100-5=095
*Wednesday, September 17, 2014 at 10:54pm*

**sixth grade math**

Multiply. Write each product in simplest form. 1. 2 3/8 * 1 3/5 = 3 4/5 2. 1 1/5 * 3/5 = 18/25 3. 1 5/6 * 2/3 = 11/10 Do I have the correct answers? If not can someone show me how to solve them?
*Wednesday, September 17, 2014 at 10:49pm*

**Math**

Find three pairs of numbers for which the LCM (least common multiple) is the product of the two numbers; The pairs and LCMs are: 8 and 12: 24; 3 and 15: 15; 7 and 11: 77; 9 and 10: 90; 24 and 36: 72; 20 and 25: 100; 14 and 42: 42; 30 and 12: 60
*Wednesday, September 17, 2014 at 10:46pm*

**science/math**

If a car can go from 0 to 60mi/hr in 8.0 seconds, what would be its final speed after 5.0 seconds if its starting speed were 50mi/hr? My answer was -10, is this correct. If not , I need help
*Wednesday, September 17, 2014 at 10:37pm*

**math**

One side of triangle is one-third the longest side. The third side is 13 feet less than the longest side. The perimeter is 106. Find all three sides.
*Wednesday, September 17, 2014 at 10:00pm*

**math**

in a Friendship Banquet 2 out of 5 roses are pink. If there are 6 pinks roses, how many total roses are in the banquet?
*Wednesday, September 17, 2014 at 9:57pm*

**math**

a plane traveled 3927 miles with the wind in 7 hours and 3437 miles against the wind in the same amount of time. Find the speed of the plane in still air and the speed of the wind.
*Wednesday, September 17, 2014 at 9:51pm*

**math**

in an apartment building there are 4 tenants who own cats for every 1 tenant who owns fish. if there are 5 tenants who own fish, how many tenants own cats?
*Wednesday, September 17, 2014 at 9:50pm*

**business in mathematics**

step by step solving plsss im very law in math so plss to solve step by step thanks.On August 1,1990, Mr.Talamos borrows 9,500 pesos and agrees to pay the compounded amont on the day he pays the debt. If interest is at the rate of 5 1/2% compounded quarterly, how much must Mr...
*Wednesday, September 17, 2014 at 9:49pm*

**Math**

A bike rental charges a $4.00 rental fee plus $2.25per hour. Selena paid $12.00 to rent a bike. How many hours did Selena rent the bike for? I can't figure out how to round the answer 4+2.25x=12 -4 -4 2.25x= 8 2.25 2.25 X= 3.555555555555555
*Wednesday, September 17, 2014 at 9:47pm*

**math**

a 132 inch lenght of ribbon is to be cut into 3 pieces the longest piece is to be 39 inches longer than the shortest piece and the third piece is to be half the length of the longest piece find the length of each piece of ribbon
*Wednesday, September 17, 2014 at 9:37pm*

**math**

The distance remaining for a half marathon race over several minutes is shown in table. Use the information to determine the constant rate change in the minutes per mile. Table: Time (min) Distance Remaining (mi) 40 8 56 6 72 4 88 2
*Wednesday, September 17, 2014 at 9:12pm*

**math help ASAP!!**

simplify fully! 3x-2/x+4 = 18-4x/x^2-16 - 3x+2/4-x show all of your steps pleasee !!
*Wednesday, September 17, 2014 at 9:00pm*

**Math**

7x^2=8x
*Wednesday, September 17, 2014 at 8:54pm*

**Math**

Find an equation of the line L, where L is perpendicular to y=3x and passes through the point (1,3) I know the slope would be -1\3x but in my answer keyy it says the answer is -1\3x + 10/3 I am not sure how they got the +10\3 part thanks
*Wednesday, September 17, 2014 at 8:39pm*

**Math:Algebra 2**

Find an equation of the linear function f having a slope of -2 if f(1)=3 My teacher never taught this, please help
*Wednesday, September 17, 2014 at 8:34pm*

**math 6th grade**

Maritza is baking cookies to bring to school that requires 3 eggs and 2 cups of sugar. To have enough for everyone she bought 12 eggs will 6 cups of sugar be enough? I tried multiplying 3 x 4 = 12 so then multiplied 2 x 4 which is 8 so there would not be enough but we are ...
*Wednesday, September 17, 2014 at 8:26pm*

**math**

a plane flew for 4hrs, 30 miles per hour and an adverge speed of 515 mph how far did it fly?
*Wednesday, September 17, 2014 at 8:19pm*

**math**

find th numbers of cups of sugar needed if for each pie you use 3 cups of sugar 2 pies, 3 pies 4 pies 5 pies 6 pies
*Wednesday, September 17, 2014 at 7:59pm*

**math**

stamjps are sold in bookiets of 100,50, and 10.find as many different ways to buy 200 stamps as you can. record your work in the chart. I don't understan what to do here. help
*Wednesday, September 17, 2014 at 7:47pm*

**Math**

Aiden know the lenght of only one side of his garden. He says he will be able to find the area knowing only one side. Explain how this can be true.
*Wednesday, September 17, 2014 at 7:40pm*

**Math**

How can I explain that 1 15/16 is closest to 2 than 17/8 and 63/32
*Wednesday, September 17, 2014 at 7:39pm*

**math**

Write an equation relating the number of questions I get right on a test to the total score I will get if the test has 20 questions each with the same point value and the test is worth 100 points total. I know each question is worth 5 points so I would think that N (number ...
*Wednesday, September 17, 2014 at 7:38pm*

**math**

2/3 of the students watched tv. Of those students 3/4 watched a reality show. Of the students that watched the show 1/4 of them recorded the show. What fraction of the students watched and recorded a reality tv show? not sure what to do, thinking we need to eliminate one of ...
*Wednesday, September 17, 2014 at 7:25pm*

**math**

Which variable expression represents the word phrase? six decreased by the sum of a number and two. A- (m + 2) - 6 B- 6 - (m - 2) C- (m - 2) + 6 D- 6 - (m + 2)
*Wednesday, September 17, 2014 at 7:18pm*

**math**

(c+2)^2 -1 factor completely (c+2)(c+2) -1 i dont know what to do next. Can you help me please thank you
*Wednesday, September 17, 2014 at 7:14pm*

**Math**

In the number 436,621, which places contain digits where one digit is ten times as great as the other ?
*Wednesday, September 17, 2014 at 7:04pm*

**math**

I have a 15ft board I need to cut into 2 1/8 inch pieces how many can I cut
*Wednesday, September 17, 2014 at 6:57pm*

**math**

blue rectangular tile and red rectangular tile are similar. the blue tile has a length of 10 inches and a perimeter of 30 inches.the red tile has a length of 6 inches. whats is the perimeter of the red tile?
*Wednesday, September 17, 2014 at 6:56pm*

**math**

Which variable expression represents the word phrase? six decreased by the sum of a number and two. A- (m + 2) - 6 B- 6 - (m - 2) C- (m - 2) + 6 D- 6 - (m + 2)
*Wednesday, September 17, 2014 at 6:51pm*

**4th grade math**

GCM OF 12 and 20. Please explain
*Wednesday, September 17, 2014 at 6:51pm*

**math**

Which word phrase can be modeled by the expression? Choose all that apply. 8 - 3n A- eight decreased by the product 3 and a number B- the difference of 8 and the quotient of 3 and a number C- the difference of eight and the product of 3 and a number D- eight less than 3 times ...
*Wednesday, September 17, 2014 at 6:45pm*

**math**

The length of an arc of a circle equals 1/8 of the circle's circumference. What is the diameter of the circle if the length of the arc is 3.14?
*Wednesday, September 17, 2014 at 6:40pm*

**math**

Michelle is now 50 miles ahead of John. Michelle is traveling at a constant rate. John is traveling in the same direction, at a rate 10 miles per hour faster than Michelle. In how many hours will John catch up to Micelle?
*Wednesday, September 17, 2014 at 6:36pm*

**6th grade math**

Hi I'm a parent and I'm trying my best to help my son but I need help. The problem is... Find two positive decimals a and b that make the following statement true. Then find two positive decimals a and b that make the statement false. If a < 1 and b < 1, then a ...
*Wednesday, September 17, 2014 at 6:16pm*

**math**

Luke is making pancakes. The recipe calls for 0.5 quart of milk and 2.5 cups of flour. He has 3/8 quart of milk and 18/8 cups of flour. Luke makes the recipe with the milk and flour that he has. Explain his error.
*Wednesday, September 17, 2014 at 6:10pm*

**Math**

12+4n/3 = 8 Not multiple choice.. trying to find n. My answer is 7 9a - 3(a -6) = -6 Not multiple choice.. I'm not quite sure how to do this The width of a rectangle is 6 in. less than its length. The perimeter is 68 in. What is the width of the rectangle? Not multiple ...
*Wednesday, September 17, 2014 at 6:01pm*

**Math**

GCF of 12
*Wednesday, September 17, 2014 at 6:00pm*

**math**

Sarah has 10 stuffed animals. Explain two different ways she can group the stuffed animals so each group has the same number and no ... number and no stuffed animals ...
*Wednesday, September 17, 2014 at 5:44pm*

**Math help. **

1. 1 • 12 numerical expression variable expression; a is the variable variable expression; there is no variable variable expression; l is the variable 2. f ÷ 7 variable expression; there is no variable numerical expression variable expression; g is the variable ...
*Wednesday, September 17, 2014 at 5:39pm*

**science/math**

If a car can go from 0 to 60mi/hr in 8.0 seconds, what would be its final speed after 5.0 seconds if its starting speed were 50mi/hr? dont know what equation to use. please help
*Wednesday, September 17, 2014 at 5:31pm*

**math**

An automobile rental angency charges $170 for 5 days for a certain model car. What is the unit price in dollars per day? why is it 59/3gal
*Wednesday, September 17, 2014 at 5:01pm*

**math**

Find the maximum and minimum value of the quadratic function g(x) = 2x^2 + 6x + 3
*Wednesday, September 17, 2014 at 4:45pm*

**math**

An order of potato skins is sold for $3.95. The individual items to prepare this order cost: $0.89 for the potato; $0.30 for cheese; $0.15 for sour cream; and $0.08 for bacon. An order of cheese fries is sold for $3.75. The items to prepare this order cost: $0.65 for the fries...
*Wednesday, September 17, 2014 at 4:20pm*

**Math**

Write each integer for each exercise. (4) -|-5| |-7|
*Wednesday, September 17, 2014 at 3:49pm*

**Create math equation**

Anthony leaves kingstons at 2:00 pm and drives to queensville, 160mi distant, at 45 mph. At 2:15 pm Helen leaves queensville and drives to kingston at 40mph. At what time do they pass each other on the road?
*Wednesday, September 17, 2014 at 3:06pm*

**Math**

An airplane took off and reached an altitude of 10,000ft in 20min. How many ft per min, on average, did the airplane climb?
*Wednesday, September 17, 2014 at 3:02pm*

**math**

The perimeter of a rectangle poultry farm is 38 meters if 3 meters are subtracted from its length as well as the breadth the length will be two times the breadth find the area of the farm
*Wednesday, September 17, 2014 at 1:49pm*

**math**

kate davidson signed a simple discount note for $9000. the discount rate is 5%, and the term of the note is 18 months. what is the annual percentage yield (apy)?
*Wednesday, September 17, 2014 at 1:35pm*

**math**

what is the effective interest rate of a simple discount note for $2700 at a bank discount rate of 12.25%, for 36 months?
*Wednesday, September 17, 2014 at 1:31pm*

**math**

what is the annual percentage yield (apy) of a simple discount note for $7000 at a bank discount rate of 6% for 3 months?
*Wednesday, September 17, 2014 at 1:28pm*

**Math**

If S1 = 0.7 and S2 = 2.1 in a geometric series, determine the sum of the first 12 terms in the series. Be sure to show all of your work.
*Wednesday, September 17, 2014 at 1:23pm*

**Math**

The sum of the first two terms of an arithmetic series is 15 and the sum of the next two terms is 43. What are the first four terms of the series?
*Wednesday, September 17, 2014 at 1:12pm*

**math**

perform the division 3-8r2+r4 / r2-2
*Wednesday, September 17, 2014 at 1:05pm*

**Math**

Etienne owns a small recycling company that picks up empty glass bottles from restaurants. At the first restaurant, he picks up 50 bottles. At each restaurant after this, he picks up 4 more bottles than he picked up at the restaurant before. Assume that this pattern continues...
*Wednesday, September 17, 2014 at 1:04pm*

**Math (putting the question back up, again)**

- 5/8c = 20 Answer choices: 34 . -32 . -34 . 32 I keep getting -100, I think I'm multiplying something wrong. But my next answer would be -32 because if you did -8/5 x 20 it would equal -32,am I right? -12.8 = 4t *not multiple choice* but my answer is 3.2 because -12.8/4 .
*Wednesday, September 17, 2014 at 12:52pm*

**Math**

What is the sum of the infinite geometric series 15 + 15(1/3)+ 15(1/3)^2 + 15(1/3)^3?
*Wednesday, September 17, 2014 at 12:43pm*

**Math**

The sum of the geometric series 9 + 45 + 225 + 3 515 625 is ?
*Wednesday, September 17, 2014 at 12:41pm*

**Math**

An explicit formula for the general term for the arithmetic sequence 7/4,1, 1/4, -1/2?
*Wednesday, September 17, 2014 at 12:40pm*

**Math**

The first prize in a lottery is $250 000. Each winner chosen after the first is paid 20% as much as the winner before them. a) Determine t1 and r for the geometric sequence that represents this situation. b) Determine an explicit formula for the general term. c) Determine a ...
*Wednesday, September 17, 2014 at 12:38pm*

**math**

The rectangular and polar coordinates of a point are (x, y) and (r, θ), where x = 4 and θ = 38◦ . Determine the value of r.
*Wednesday, September 17, 2014 at 11:41am*

**math**

The rectangular and polar coordinates of a point are (x, y) and (r, θ), where x = 4 and θ = 38◦ . Determine the value of r.
*Wednesday, September 17, 2014 at 11:07am*

**math**

The rectangular and polar coordinates of a point are (x, y) and (r, θ), where x = 4 and θ = 38◦ . Determine the value of r.
*Wednesday, September 17, 2014 at 10:59am*

**math**

How many thousands of people live in Boston ma.if population is 617,594
*Wednesday, September 17, 2014 at 7:23am*

**Math**

In rectangle PQRS, diagonal PR makes a 60 degrees angle with side PS. If PR =10, what is the area of the rectangle?
*Wednesday, September 17, 2014 at 6:39am*

**Math**

Freddy and Frankie want to know their grandmother's age. She tells them that the digits of their age make up her age. She also tells them that their age plus her age total 83. What is the age of the grandmother? Please explain this question step by step.
*Wednesday, September 17, 2014 at 3:29am*

**math**

Jen and Jacob want to put a cement deck around their pool. Use the figure below to calculate the area of the deck. Second, simplify the area if x=4.75. Round to the nearest hundredth.
*Wednesday, September 17, 2014 at 12:27am*

**math**

Line through (0,b) and (10,-5) is perpendicular to the line through (a,0) and (-6,-3). If all ordered pairs (a,b) which make the first sentence of this problem true are graphed, they all lie on a line. Find the equation of this line.
*Wednesday, September 17, 2014 at 12:04am*

**MATH**

4X/5+1/7=8
*Tuesday, September 16, 2014 at 11:48pm*

**Math**

Consider the arithmetic series 7 + 19 + 31 + 43 + 55 + pr004-1.jpg. a) How many terms are less than 1000? (3 marks - show your work) b) How many terms are less than 2000? (3 marks - show your work)
*Tuesday, September 16, 2014 at 11:36pm*

**Math**

Determine the sum of the infinite geometric series 28 + 14/3 + 7/9 + 7/54 ?
*Tuesday, September 16, 2014 at 11:28pm*

**Need Help with Math**

Name three different pairs of fractions that have the same product when multiplied.
*Tuesday, September 16, 2014 at 11:23pm*

**math**

x^3-18x^2+80=0
*Tuesday, September 16, 2014 at 11:14pm*

**math**

¿Cuanto le sobra a la mitad de los 3/8 de 5/6 de 24 para ser igual al exceso de 5/2 sobre 1/4 ?
*Tuesday, September 16, 2014 at 11:09pm*

**Math**

Round two decimals -2x^4+9=3x+5
*Tuesday, September 16, 2014 at 11:05pm*

**math**

Russell planted a flower bed that is 1.6 square meters Jackie planted a flower bed that is 16 tenths square meters. Draw a quick picture to model the two areas
*Tuesday, September 16, 2014 at 10:41pm*

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