Monday

December 22, 2014

December 22, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**Math**

While remodeling her house , Ms.Puliafici paints her cabinets . There are 210 square feet of cabinets.She can paint 20 square feet every 1/2 hour . How long will it take her to finish the cabinets ?
*Monday, October 27, 2014 at 9:45pm*

**math**

3/5 + 3/4 round each fraction and estimate the sum. add the two fraction using a common denominator and then round the result. which estimate is closer to the actual answer.
*Monday, October 27, 2014 at 9:23pm*

**math trade discount**

In addition to the regular trade discount of 25% and a volume purchase discount of 8.33333333% from the manufacturer, Appliance Warehouse is offered a further 5% discount for orders places in January. a. What is the list price on an electric range whose net price works out to ...
*Monday, October 27, 2014 at 9:22pm*

**math**

What is the area of a rectangular room that is 3¾ yards long and 3⅓ yards wide
*Monday, October 27, 2014 at 9:17pm*

**math**

Bianca has a total of 25 cent. She has some nickels and pennies. How many different combinations of nickels and pennies could Bianca have?
*Monday, October 27, 2014 at 9:16pm*

**Math invoice**

Custom Kitchens received an invoice dated November 17 from Idea Cabinets Ltd. for $7260 with terms 3/15, 15/30,n/60. If Custom Kitchens made a payment of $4000 on December 2, what further payment on December 16 will settle the account?
*Monday, October 27, 2014 at 9:15pm*

**math**

A box of chalk and 2 staplers cost $10 Three boxes of chalk and 2 staplers cost $18. Find the total cost of 1 box of chalk and 1 stapler?
*Monday, October 27, 2014 at 9:14pm*

**math**

4/10 -1/5 9/15-1/3 4/12-1/6 find the difference
*Monday, October 27, 2014 at 9:04pm*

**Math**

Custom Kitchens received an invoice dated November 17 from Idea Cabinets Ltd. for $7260 with terms 3/15, 15/30,n/60. If Custom Kitchens made a payment of $4000 on December 2, what further payment on December 16 will settle the account?
*Monday, October 27, 2014 at 8:52pm*

**Math**

In three successive years the price of the common shares of Bedrock Resources Ltd. fell 40%, 60%, and 70% ending the third year at 50 cents. a. What was the share price at the beginning of the three-year skid? b. How much (in dollars and cents) did the share price drop in the ...
*Monday, October 27, 2014 at 8:51pm*

**math**

Ms. Hernandez has 17 tomato plants that she wants to plant in rows. She will put 2 plants in some rows and 1 plant in the others. How many different ways can she plant the tomato plants?
*Monday, October 27, 2014 at 8:51pm*

**math 7**

a model house is 12 cm wide if it was built with a scale of 3cm and 4m than how wide is the real house
*Monday, October 27, 2014 at 8:50pm*

**Math**

Mr. and Mrs. Ogrodnik want to list their house at a price that will net them a minimum of $320,000 after a real estate commission of 5.5% of the selling price. Rounded to the nearest $100, what is the lowest offer they could accept on their home?
*Monday, October 27, 2014 at 8:50pm*

**Math**

after a flood on the Red River, 1200 L of water were pumped out of a basement in 8 h. What was the unit rate of outflow?
*Monday, October 27, 2014 at 8:15pm*

**math**

Jenna says that no row or column contains products with only odd numbers. Do you agree? explain.
*Monday, October 27, 2014 at 8:13pm*

**Math**

The medical records of infants delivered at Kaiser Memorial Hospital show that the infants' lengths at birth (in inches) are normally distributed with a mean of 22 and a standard deviation of 2.1. Find the probability that an infant selected at random from among those ...
*Monday, October 27, 2014 at 8:02pm*

**Math**

Use the distributive property to rewrite the expression 1/2(C-8)=
*Monday, October 27, 2014 at 7:59pm*

**math**

Scale Drawings Marking City is 5 inches away from jamming city on the map. What is the actual distance between the two cities? Scale: 2inches:35Miles My answer 2in/35mi = 7ft/x mi 2x=7x35 2x/2=245/2 x=122.5 miles
*Monday, October 27, 2014 at 7:47pm*

**math**

David has a hose that is 27 ft long. He wants to cut it into two pieces so that the longer piece is 3 ft more than 2 times the length of the shorter piece.
*Monday, October 27, 2014 at 7:23pm*

**math**

consider the sum 3/5+3/4. round each fraction and estimate the sum. add the two fraction using a common denominator and then round the result. which estimate is closer to the actual answer.
*Monday, October 27, 2014 at 7:08pm*

**Math**

The slowest mammal on Earth is the sloth. A sloth might move along a tree at a maximum rate of just 3 ^-1m each minute. At this rate, how long will it take a sloth to climb a tree that is 33 m tall?
*Monday, October 27, 2014 at 7:05pm*

**math**

if the school record for the softball throw is 78 ft about how much farther must Robert throw the ball to match the record. a 15ft b 16ft c 18 ft d 20ft
*Monday, October 27, 2014 at 7:03pm*

**math**

4/8-1/4 find the diffence
*Monday, October 27, 2014 at 7:00pm*

**math**

3 1/4 + 2 5/6 estimate each sum or difference
*Monday, October 27, 2014 at 6:55pm*

**math**

9/10-3/5 find the difference
*Monday, October 27, 2014 at 6:29pm*

**math**

which number has the greatest value? a 3.5 b square root of 15** c square root of 1/16 d 26/100 which number is an irrational number? a 3.5 b square root of 36 c square root of 48 d 37/100*** If a is a rational number and b is an irrational number, then the sum a + b is A)...
*Monday, October 27, 2014 at 5:29pm*

**Math **

Name a number that is a factor of both 12 and 24
*Monday, October 27, 2014 at 5:08pm*

**Math**

Find the volume of a bag if the bag is 5.5in X 3in X 8in
*Monday, October 27, 2014 at 4:34pm*

**Math Physics**

Water is pumped at 250m^3/min from a lake into a tank 65.0 m above the lake. (a) What power, in kW, must be delivered by the pump? (b) What horsepower rating does this pump motor have? (c) What is the increase in potential energy of the water each minute?
*Monday, October 27, 2014 at 4:21pm*

**Math**

Sue bought an ice cream cone from Dairy Queen. The cone had a radius of 3cm and a height of 8cm. If I use the formula of (TT=3.14, r=radius, h=height) 2 V=1/3TTr h Is the answer 50.24 cm3? Any help is appreciated. If I'm not right could you tell/show me how to figure this ...
*Monday, October 27, 2014 at 4:10pm*

**Math**

300 milliliters are equivant to how many liters?
*Monday, October 27, 2014 at 4:09pm*

**Math**

Brand A: 20 for $2.50 Brand B: 35 for $3.25 Brand C: 50 for $5.25 Brand D: 100 for $10.00 The school nurse is low on band-aids. She heads to the store and finds 4 brands. Which one is the best buy? You must prove your answer.
*Monday, October 27, 2014 at 4:07pm*

**Math, Please Help!**

Find the a/b form, where a and b are integers and b isn't equal to 0, for each of the following: A. 0.29 (29 repeating) B. 0.00029 (29 repeating)
*Monday, October 27, 2014 at 3:45pm*

**math**

A florist had an equal number of red and yellow tulips. She sold 624 red tulips. Then she had 4 times as many yellow tulips as red tulips. How many tulips did she have at first. 624 X 5 ----- 3120
*Monday, October 27, 2014 at 3:43pm*

**math problem solving**

leslie has 17 tomato plants that she wants to plant in rows. she will put 2 plants in some rows and 1 plant in others. how many different ways can she plant the tomato plants?
*Monday, October 27, 2014 at 3:32pm*

**Math**

If the average cost per salaried employee increases by $4,000 in the Kitchen Department, what is the new average cost per employee in the department? (more info: Salaried Employees: Average # of employees: 2 Cost in Thousands: 52 Average Cost/Employee: 26 Hourly: Average # of...
*Monday, October 27, 2014 at 3:18pm*

**Math help**

A cafeteria has two soda machines. Once machine has the following flavors: Cola, root beer, and lime. The second machine has lemon, orange, cola, and cherry. Which set represents all flavors in the two machines. a. {Cola, root beer, lime} b. {cola} c. {cola, cola, root beer, ...
*Monday, October 27, 2014 at 3:00pm*

**math**

How do you solve this? 5x- [1.5 -3.6] [0.2 1.3] [-0.3 2.8]= [-5.6 1.7] 5x/5[-1.5 -3.6] [0.2 1.3] [0.3 -2.8]=[-5.6 1.7] x = [-1.5 3.6] [0.2 1.3] [0.3 -2.8]=[-5.6 1.7] [-1.5 + 0.2 + 3.6 + 1.3] [0.3 + -5.6 + -2.8 + 1.7] x = [-1.3 4.9] [-5.3 -1.1] I have tried to work this out ...
*Monday, October 27, 2014 at 2:02pm*

**Math**

A kitchen floor measures 10ft by 12 ft. Calculate the minimum area and maximum area using the greatest possible error
*Monday, October 27, 2014 at 1:02pm*

**Math **

A particle is moving along the curve y= 2 \sqrt{4 x + 4}. As the particle passes through the point (3, 8), its x-coordinate increases at a rate of 5 units per second. Find the rate of change of the distance from the particle to the origin at this instant.
*Monday, October 27, 2014 at 12:43pm*

**math**

what is the consecutive positive odd numbers of 34,459,425?
*Monday, October 27, 2014 at 12:35pm*

**Math Homework**

Solve the inequality and express the answer in interval notation: 1.) 3x^2+2x>2x^2-3 2.) 4x^2-x<0
*Monday, October 27, 2014 at 11:53am*

**Math**

There are some animals in a farm.there are 50 goats. the ratio of goats to sheeps is 1:4. find sheep
*Monday, October 27, 2014 at 4:42am*

**Math **

1/4 of Peter's money is the same as 2/3 of James money, James has $60. How much do they have altogether?
*Monday, October 27, 2014 at 2:45am*

**Math**

determine the values of a,b,c,and d for a sinusoidal equation in the form: y= a sin b(x-c)+d and y= a cos b(x-c)+d using the max= 23.1 and min= -19.7 to determine the value. how to determine the values? thank you..
*Monday, October 27, 2014 at 2:33am*

**Math**

X^x-31x+108=0
*Monday, October 27, 2014 at 12:22am*

**math**

4 PARTS TO THIS...SOUNDS CHINESE...HELP! Chef Alonso is creating a recipe called Spicy Italian Chicken with the following ingredients: 3/4 pound chicken, 2 1/2 cups tomato sauce, 1 teaspoon oregano, and 1/2 teaspoon of his special hot sauce. a) Chef Alonso wants each serving ...
*Monday, October 27, 2014 at 12:10am*

**Fractions Math**

Fiona and camila took a load of peaches to the farmers market. During the first hour , they sold 1/2 of the peaches plus 1/2 of a peach. In the second hour, they sold 1/3 of the remaining peaches plus 1/3 of a peach. In the third hour , they sold 1/4 of what was left and 3/4 ...
*Sunday, October 26, 2014 at 10:46pm*

**Math**

Your basketball team scored 4 fewer than twice as many points as the other team. a. Write and expression for the number of points your team scored. b. The other team scored 24 points. How many points did your team score? For a. I got t*2-4 so far, is it right? Should I correct...
*Sunday, October 26, 2014 at 10:33pm*

**Math**

Fiona and camila took a load of peaches to the farmers market. During the first hour , they sold 1/2 of the peaches plus 1/2 of a peach. In the second hour, they sold 1/3 of the remaining peaches plus 1/3 of a peach. In the third hour , they sold 1/4 of what was left and 3/4 ...
*Sunday, October 26, 2014 at 9:56pm*

**MATH**

A BICYCLE TRAVELS WITH EACH TURN OF ITS WHEELS IS ABOUT 3 1/67 TIMES THE TIRE DIAMETER. iF THE TIRES HAVE A DIAMETER OF 24 1/2 INCHES, HOW FAR DOES IT TRAVEL WITH EACH TURN OF THE WHEELS
*Sunday, October 26, 2014 at 9:36pm*

**math measurement**

Jane has two pieces of ribbon.One piece is 10cm longer than the other.the total of the two pieces is 40cm.how long is the shorter piece?
*Sunday, October 26, 2014 at 8:56pm*

**help PLEASE math 112**

Which has the greater effect on the surface area of a right circular cylinder - doubling the radius or doubling the height? how can I explain this
*Sunday, October 26, 2014 at 8:43pm*

**math**

frank is 3 times old as ken. frank is 15 years older than eileen, while ken is 1 year younger than eileen. What are thw ages of frank, ken and eileen?
*Sunday, October 26, 2014 at 8:11pm*

**math**

P varies directly as the square root of q. P=8 when q =25 find p when q = 100
*Sunday, October 26, 2014 at 7:39pm*

**Math**

Liz uses 19 connecting cubes to make a model of house. The house model is in the shape of a rectangle and is one cube high. How many different ways could Liz make the model of the house?
*Sunday, October 26, 2014 at 7:03pm*

**math**

your recipe calls for 300 grams of chocolate .you have 200 grams .what fraction of chocolate do you have?
*Sunday, October 26, 2014 at 6:47pm*

**Math**

10. Estimate 30% of the student population. You must show all of your work and provide an explanation. *There are 850 students.
*Sunday, October 26, 2014 at 6:07pm*

**math problem**

Adam, Sam, and Eddie have to meet their boss at 3:00 in the office 9 miles apart from their home, and they must be arrive in time for the appointment. Adam had a bicycle, Sam had a skateboard,and Harry had no transport. So they have to share. so they left the house together. ...
*Sunday, October 26, 2014 at 3:33pm*

**math**

all the seats in two sections of a movie theater are occupied. in one section there are 8 row with 18 seats in each row.
*Sunday, October 26, 2014 at 2:58pm*

**Math**

Can someone please check these problems? Thank you! Solve each equation for the indicated value. 1. a-b=-c, for a I got a=-c+b 2. 4y+6x=12, for y I got y=-3/2x+3
*Sunday, October 26, 2014 at 2:53pm*

**Math**

Find the exact interest on a loan of $32,400 at 7% annually for 30 days.
*Sunday, October 26, 2014 at 2:08pm*

**math**

Ashley recently opened a store which sells only natural ingredients. She wants to advertise her products by distributing bags of samples in her neighborhood. It takes one person 2 minutes to prepare one bag. How many hours will it take to prepare 900 bags of samples if Ashley ...
*Sunday, October 26, 2014 at 1:18pm*

**Algebra 1**

Andrew is making a plan to complete a class math assignment. He has 48 problems to complete over 5 days. He decides to complete the assignment is such a way that his total number of completed problems doubles every day. He realizes that that number must be 48 by the end of ...
*Sunday, October 26, 2014 at 1:07pm*

**math**

KATHY has red balloons and blue balloons. She gives away 5 ballons. If she gives away 3 red ballons, how many blue ballons does she give away?
*Sunday, October 26, 2014 at 12:10pm*

**Math**

Assume a three-month CD purchased for $3000 pays simple interest at an annual rate of 10%. What is the balance at maturity? I don't have any work. This is question one and I have 19 more. I don't understand how to arrive at the answer.
*Sunday, October 26, 2014 at 10:31am*

**Math algebra**

its 45m from the center of a circular field to the inside edge of the track surrounding it. the distance from the center of the field to the outside edge is 55m. find the circumference of each edge.
*Sunday, October 26, 2014 at 10:00am*

**math**

the width of a rectangle is 4cm and the length is 8 cm if both the width and the length are increased by equal measures, the area of the rectangle is increased by 64 cm 2. find the length and width of the larger rectangle
*Sunday, October 26, 2014 at 9:16am*

**5th grade math problem**

Adam, Sam, and Eddie have to meet their boss at 3:00 in the office 9 miles apart from their home, and they must be arrive in time for the appointment. Adam had a bicycle, Sam had a skateboard,and Harry had no transport. So they have to share. so they left the house together. ...
*Sunday, October 26, 2014 at 1:13am*

**Math (sigma stuff!)**

Hi! Looking to find n∑k=1 8(k/n) (n is supposed to be on top, k=1 below the sigma sign)in closed form. I've tried doing 8*[(n(n+1)/2)/n], and that didn't seem to work. I'm not sure if I'm supposed to do anything with the n or if it might be an issue with ...
*Saturday, October 25, 2014 at 11:11pm*

**Math**

The data shows the total number of employee medical leave days taken for on-the-job accidents in the first six months of the year: 16, 7, 23, 9, 25, 16. Find the standard deviation.
*Saturday, October 25, 2014 at 9:42pm*

**math**

8x-1=55
*Saturday, October 25, 2014 at 9:21pm*

**math/limits**

lim {x-3}/(x^2-9) x->3 ( I used {} to show absolute value) Find the limit if there is one.
*Saturday, October 25, 2014 at 8:23pm*

**math/limits**

lim (squar(14+y)-squar(14))/y y->0 Find limit if there is one.
*Saturday, October 25, 2014 at 8:21pm*

**Math**

Im still confused on how to solve these equations for the indicated value. 1. a-b=-c, for a 2. y=1/2x-10, for x
*Saturday, October 25, 2014 at 8:14pm*

**math**

can you help me graph the inequality f> equal to 4 on a number line ? ms.sue please help
*Saturday, October 25, 2014 at 8:04pm*

**math**

ms.sue help asap 1. which exponent makes the statement true? 1/5^9 =5^? 9 -9 1/9 -1/9 2. y^5*y^14 = 2y^19 y^60 y^19 2y^60 3. w^12/w^18 w^30 w^-30 w^6 w^-6 4. using the numbers 3,2, and 4 which of these problems would have a solution of 4? 4*2^3/2^3 2*2^3/2^4 3*2^3/2^4 3*2^4/2^...
*Saturday, October 25, 2014 at 7:53pm*

**math/probability**

If u pick one card from each of 5different decks,what is the probability that you will pick at least one spade
*Saturday, October 25, 2014 at 7:14pm*

**math/probability**

The probability of car accident is 1in 50 in a year,what is probability in a car accident over a 5year period
*Saturday, October 25, 2014 at 7:10pm*

**math**

2. sylvia has 6 1/2 boxes of chocolate to share at a family picnic. if she gives each person 1/3 of a box, how many people can recieve chocolate? 13 17 19 21 3.which of these numbers is not rational? square root 3 0.25 1/5 square root 9 someone please help asap
*Saturday, October 25, 2014 at 7:08pm*

**Math **

On a forward summer salt dive, a diver's height, h meters above the water can be modelled by the equation h(t)=-2.9(t-0.6)^2+4.8 where t is the time in seconds after the diver leaves the board A) determine the height above the water the diver is before he leaves the board.
*Saturday, October 25, 2014 at 7:03pm*

**Calculus (math)**

A conical water tank with vertex down has a radius of 12 feet at the top and is 23 feet high. If water flows into the tank at a rate of 20 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 12 feet deep?
*Saturday, October 25, 2014 at 6:31pm*

**Math**

Could you show me how to work through this problem? Show me steps Solve for s. Show all steps. –3s ≥ 18
*Saturday, October 25, 2014 at 5:41pm*

**Math**

How do you solve each of these equations for the indicated value? I'm so confused on how to do it 1. a-b=-c, for a 2. 4y+6x=12, for y 3. y=1/2x-10, for x
*Saturday, October 25, 2014 at 5:18pm*

**math**

2. sylvia has 6 1/2 boxes of chocolate to share at a family picnic. if she gives each person 1/3 of a box, how many people can recieve chocolate? 13 17 19 21 3.which of these numbers is not rational? square root 3 0.25 1/5 square root 9 4. a student's work to solve 2 6/7 ...
*Saturday, October 25, 2014 at 4:57pm*

**math**

i dont get how to do this problem mrs. sue please help how would you convert the repating nonterminating decimal to a fraction? explain the process as you solve the problem/0.1515... remember to show all of the steps that you use to solve the problem how would you convince a ...
*Saturday, October 25, 2014 at 4:56pm*

**Math**

a) One mould forms a sculpture that is a composite object comprising a right cylinder with base diameter 15 in. and height 3 in., and a right cone with the same base diameter as the base of the cylinder and a height of 9 in. Determine the volume of the sculpture to the nearest...
*Saturday, October 25, 2014 at 4:55pm*

**math**

how would you convert the repating nonterminating decimal to a fraction? explain the process as you solve the problem/0.1515... remember to show all of the steps that you use to solve the problem how would you convince a fellow student that the number 0.57 is a rational number?
*Saturday, October 25, 2014 at 4:52pm*

**math**

2. sylvia has 6 1/2 boxes of chocolate to share at a family picnic. if she gives each person 1/3 of a box, how many people can recieve chocolate? 13 17 19 21 3.which of these numbers is not rational? square root 3 0.25 1/5 square root 9 4. a student's work to solve 2 6/7 ...
*Saturday, October 25, 2014 at 4:49pm*

**Math**

An igloo approximates a hemisphere, with an entrance tunnel that approximates half a right cylinder. The base of the igloo has diameter 4.0 m. The entrance is 0.8 m long; it has an external radius of 0.8 m and an internal radius of 0.7 m. Calculate the surface area of the ...
*Saturday, October 25, 2014 at 4:33pm*

**Math**

f(x)=3x^2-x-2 If x=2, what is f(x)? What point is on the graph of f? For the first question, I got 8. But, I'm having trouble understanding the second question.
*Saturday, October 25, 2014 at 4:30pm*

**Math**

A solid sphere just fits inside a cube that has an edge length equal to the diameter of the sphere. The edge length of the cube is 5.8 cm. What is the volume of air in the cube to the nearest cubic centimetre?
*Saturday, October 25, 2014 at 4:04pm*

**math**

carol is baking cookies and needs 2 1/4 cups of flour, 2/3 cup of white sugar, 1/4 cup of brown sugar, and 1/16 cup of baking soda. use this information to answer the following questions 2. if the amount of white sugar were increased by a factor of 2 1/2 in cups how much sugar...
*Saturday, October 25, 2014 at 3:07pm*

**Math**

Meg's pension plan is an annuity with a guaranteed return of 7% per year (compounded quarterly). She would like to retire with a pension of $20,000 per quarter for 15 years. If she works 31 years before retiring, how much money must she and her employer deposit each quarter?
*Saturday, October 25, 2014 at 1:07pm*

**Math**

A rental agency claims that the average rent that small business establishments pay in Suva city is $800. A sample of 10 establishments shows an average rate of $20. At alpha = 0.05, there enough evidence to reject the agencies claim? Assume that the population is ...
*Saturday, October 25, 2014 at 1:06pm*

**Math**

A typist can type 146 words in 100 seconds. At this rate, how many minutes and seconds would it take him to type 657 words.
*Saturday, October 25, 2014 at 12:38pm*

**Math**

Which verbal expression represents the algebraic expression? (A) 2 times a number minus 6 (B) twice the difference between 6 and a number (C) 6 less than twice a number (D) twice the difference between a number and 6 I think it's A, am I right? Thank You for your help.
*Saturday, October 25, 2014 at 12:14pm*

**math**

Let f(x) = 3+4x-x^{3}. Find the open intervals on which f is increasing (decreasing). Then determine the x-coordinates of all relative maxima (minima). 1. f is increasing on the intervals? 2. f is decreasing on the intervals?
*Saturday, October 25, 2014 at 12:14pm*

**math**

Find the critical numbers of the function f(x) = x^{1/4}-x^{-3/4}.
*Saturday, October 25, 2014 at 12:13pm*

**Math**

Is this a true statement? x+x+x+2+3=3x+5 I think this is could you tell me if I'm right? Big test comming! Thanks
*Saturday, October 25, 2014 at 11:33am*

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