Sunday

January 25, 2015

January 25, 2015

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**Math**

5. A system of linear inequalities is shown below: x + y ≥ 4 y < 2x – 3 Describe the steps to graph the solution set to the system of inequalities. Be specific. (10 points)
*Wednesday, January 14, 2015 at 9:07am*

**math**

you have 2 pennies, 3 nickels, 1 dime and 2 quarters. how many different sums of money can you make using one or more of these 8 coins
*Wednesday, January 14, 2015 at 9:01am*

**B.S,geography,agricultural sciences and math l**

will i be able to study low at ukzn or tut or wherever with my learing areas
*Wednesday, January 14, 2015 at 4:42am*

**B.S,geography,agricultural sciences and math l**

will i be able to do nursing at ukzn with those subjects
*Wednesday, January 14, 2015 at 4:39am*

**math pow**

there are about 20 potatoes in a five pound bag and restaurant uses about two potatoes per order of french fries how much money does the restaurant taking on a day that they use 400 pounds of potatoes
*Tuesday, January 13, 2015 at 11:18pm*

**math**

A bag contains the following marbles:6 red,4 orange,3 yellow,2 blue and 5 green. You choose a marble at random and do not replace it. Then you select another marble. P(red,then blue)3/95 P(orange,then blue) 2/95 P(blue,then yellow) 3/190 P(red,then yellow) 9/190 P(blue,then ...
*Tuesday, January 13, 2015 at 10:22pm*

**Math**

Of the vehicles on the road, 1/2 are cars and 1/8 are motorcycles. What fraction of the vehicles are not cars or motorcycles?
*Tuesday, January 13, 2015 at 10:19pm*

**math**

If the width of the image is 5 inches and the width of the preimage was x. What is the scale factor and center of dilation at the origin
*Tuesday, January 13, 2015 at 10:16pm*

**Math**

Jeffrey biked to the store at 12 miles an hour but took his time on the way home going 8 miles an hour. If it took him 20 minutes to get to the store, how many minutes did it take him to get back?
*Tuesday, January 13, 2015 at 10:12pm*

**Math**

Example of a real-world relationship where there is no clear independent or dependent variable.
*Tuesday, January 13, 2015 at 10:12pm*

**Math**

Given f(x)=-2-3x-x^2 , find f(1+k)
*Tuesday, January 13, 2015 at 10:11pm*

**Math **

Elizabeth took 13 minutes less than twice as long as Heather to solve the puzzle if their total time together was 23 minutes who took less time to solve the puzzle? How much less?
*Tuesday, January 13, 2015 at 10:11pm*

**Math**

The 80 8th graders took a trip. The boys numbered 16 fewer than twice the number of girls. How many of the eighth graders are girls?
*Tuesday, January 13, 2015 at 10:09pm*

**math**

For a carnival game, a cube is rolled.Each of its six faces has a different color. To win,you must select the color rolled.Find the probability of playing the carnival game twice and winning both times. B.suppose for the game,you choose red and your friend picks blue. What is ...
*Tuesday, January 13, 2015 at 10:06pm*

**Math**

A flagpole casts a shadow of 23.5 feet long.at the same time of day, Ana, who is 5.5 feet tall, casts a shadow that is 7.5 feet long. How tall in feet is the flagpole?
*Tuesday, January 13, 2015 at 9:24pm*

**Math**

ling has 4m pounds of flour. she buys another 2 packages of flour, each weighing m pounds. how much pounds does ling have in terms of m
*Tuesday, January 13, 2015 at 9:04pm*

**Math**

It takes Jaiden 5 and 3/4 hours to do her homework each week. It takes her 2 and 3/4 hours to complete her science and 1 and 1/2 hours to complete her math homework. How long does it take her to complete Social Studies homework? Use the numbers and symbols, listed below, to ...
*Tuesday, January 13, 2015 at 8:57pm*

**Algebra- Middle**

My math question ask is 1/3(x-9) = 2x+7 greater than or less than 4/3(x+4)= -4x. The problem (1) answer = 6. Problem (2) answer = -1. Therefore problem (2) is less than problem (1). Are the answer to the equations correct. Sincerely
*Tuesday, January 13, 2015 at 8:34pm*

**math**

Problem: A ball is dropped from the top of a building that is 250 feet tall. The height h of the ball in feet after t seconds is modeled by the function h = -16t2 +250. How long will it take for the ball to reach the ground? Round your answer to the nearest tenth if necessary.
*Tuesday, January 13, 2015 at 8:31pm*

**Math**

On a winter's day, 9 degrees Fahrenheit is th highest temperature recorded. Which inequality represents the temperature, t, in degrees Fahrenheit, at any time on this day?
*Tuesday, January 13, 2015 at 8:09pm*

**algebra**

My math problem is -2(2+3)-2k = -2-4(2+2) My answer is k=20 is this answer correct.
*Tuesday, January 13, 2015 at 8:06pm*

**5th grade math**

Julian wants to put a border around two sides of his rectangular shaped garden. he has a 12 foot piece of lumber that will be cut into 1/3 foot pieces. how many 1/3 foot pieces can Julian cut from the lumber? 12 divided by 1/3
*Tuesday, January 13, 2015 at 8:02pm*

**Math**

My math question is 1. 2x6squared - 26/2 72-13 = 59 2. 1/3(x-9) = 2x+7 is -11 Am I correct. Thanks
*Tuesday, January 13, 2015 at 7:54pm*

**Math**

Math question is combining like terms then simplify. 3 3 6b - 2b+2b+2b -b 3 My answer is 4b -b
*Tuesday, January 13, 2015 at 7:44pm*

**Math**

I'm stuck on this problem about percentages, I don't know what to do 8 9/25 as a percentage
*Tuesday, January 13, 2015 at 7:36pm*

**math please help ASAP**

There is a plane on top of a triangle with angles of 40 degrees and 80 degrees. The 40 degree angle is on the bottom left and the side opposite is Y. The 80 degrees angle is on the bottom right and the side opposite is X. So... What is X and what is Y?
*Tuesday, January 13, 2015 at 7:30pm*

**Algebra**

The question in my math book is 1/3(x-9) = 2x +7 My answer is x = 7 Is this a correct answer.
*Tuesday, January 13, 2015 at 7:27pm*

**math**

Make the sum of the numbers across equal the sum of the numbers down. 7 5 1 9 3
*Tuesday, January 13, 2015 at 7:24pm*

**Math**

You answered 85% of the questions on the quiz correctly. What fraction of the questions did you answer correctly?
*Tuesday, January 13, 2015 at 7:23pm*

**MATH**

describe how the graphes of y=/x/ and y=/x/-15 are related A:the graphs have the same shape.The y-intersept of y=/x/ is 0, and the x-intercept of the second graph is -15 B: the graphs have the same y-intercept. the second graph is steeper then y=/x/ C:the two graphs are the ...
*Tuesday, January 13, 2015 at 7:16pm*

**Math**

My math problem is combining like terms then simply. 3 3 6b - 2b + 2b + 2b -b Answer is (b)
*Tuesday, January 13, 2015 at 7:15pm*

**Math MIddle**

2 2x6 - 26/2 My answer is 72-13=59
*Tuesday, January 13, 2015 at 7:09pm*

**Math**

Q. Russell was scheduled to leave on his vacation when a major snowstorm came through and canceled three-fourth of the flights out of the airport. There were 496 flights scheduled for that day. How many flights were able to leave the airport? - A. Do I divide 496 with 3 than ...
*Tuesday, January 13, 2015 at 7:07pm*

**math**

You are installing a new deck around your pool. The pool is rectangular with the dimensions 8m by 4m. The deck will surround the pool and will have a width by 2m. How much security fencing is required around the deck.
*Tuesday, January 13, 2015 at 7:03pm*

**math**

There is a plane on top of a triangle with angles of 40 degrees and 80 degrees. The 40 degree angle is on the bottom left and the side opposite is Y. The 80 degrees angle is on the bottom right and the side opposite is X. So... What is X and what is Y?
*Tuesday, January 13, 2015 at 7:00pm*

**math**

Jill has a total of 12 1/2 hours of football practice after school five days a week. a. How many hours of practice will he have for 15 school days? I think the answer is 37 1/2 hours. b. How many hours of practice will he have for 22 school days? I think that the answer is 55 ...
*Tuesday, January 13, 2015 at 6:59pm*

**Math**

What is the area of a quadrilateral with sides 24 and 40 and a shared angle of 135 degrees ? Thank you
*Tuesday, January 13, 2015 at 6:57pm*

**math**

According to the 2003 U.S. Census, approximately 129 million americans spend 3.4% of a 24-hour day commuting. How many minutes a day does a person in this group spend commuting?
*Tuesday, January 13, 2015 at 6:23pm*

**math**

Jamal made a list of fractions and asked Will to find the fraction written in simplest form. Which fraction should Will choose? 1/8, 3/89, 9/18, 6/10?
*Tuesday, January 13, 2015 at 6:22pm*

**Math**

Line "a" passes through points with coordinates (-3,5) and (0,0) and a line "b" passes through points with coordinates (3,5) and (0,0). Explain how you would determine whether lines a and b are parallel perpendicular or neither
*Tuesday, January 13, 2015 at 6:12pm*

**Math**

Jay's term paper is 18 pages long. If Madison's paper is 175% of the length of Jay's paper, find the length of Madison's paper.
*Tuesday, January 13, 2015 at 5:58pm*

**Math**

How to find the perpendicular line of y=1/3x-2
*Tuesday, January 13, 2015 at 5:53pm*

**Math**

Samuel has read 5/6 of his assignment. Judy has read 10/12. Of her assignment. Who has read more and why?
*Tuesday, January 13, 2015 at 5:53pm*

**math**

The electricity that powers our appliances is converted from many sources of energy. About 5/10 is made from coal, about 2/10 from natural gas, and about 2/10 from nuclear power.About how much of our electricity comes from sources other than coal, natural gas, or nuclear power?
*Tuesday, January 13, 2015 at 5:38pm*

**math**

Mr. Jenkins is going to buy museum tickets for a class trip. The museum director quotes him the following prices: • 20 tickets cost a total of $250. • 30 tickets cost a total of $375. • 50 tickets cost a total of $625. a. Based on these prices, is the cost of ...
*Tuesday, January 13, 2015 at 5:35pm*

**Math**

what is the slope of the line that passes through the points (1,3) and (5,-2) -5/4 - -5/4* -4/5 - -4/5 please help me someone thank you!
*Tuesday, January 13, 2015 at 5:25pm*

**math**

how do you find the area of 7.3+13=?
*Tuesday, January 13, 2015 at 5:09pm*

**Math**

Find the perimeter of a rectangle that has a length of 24 feet and a width of 16 feet. Use the formula P=2L +2w
*Tuesday, January 13, 2015 at 4:54pm*

**Math**

Me. And Mrs. Jefferson have a total of $5170 in the bank. At the end of the month, mr. Jefferson deposits $450 into his account, and news Jefferson deposits $626 into her account. They now have an equal amount of money in their accounts. How much money did each of them have at...
*Tuesday, January 13, 2015 at 4:47pm*

**Math**

Alan rode his bike 2.6 miles from home to the park . He rode 6.03 miles to the park. Then he rode back home along the original route. How many miles did Alan ride in all? Is this correct 13.83 miles?
*Tuesday, January 13, 2015 at 4:43pm*

**MATH HELP**

six neighbors share 4 pies equally. how much of a pie does each get? three brothers share 2 sandwiches equally. how much of a sandwich does each brother get?
*Tuesday, January 13, 2015 at 4:42pm*

**Math**

A rectangle has a length of 10 3/16 inches and a width oh 6 7/8 inches. What is the perimeter of the rectangle?
*Tuesday, January 13, 2015 at 4:41pm*

**Finite Math**

The quantity demanded x of a certain brand of DVD player is 3000/week when the unit price p is $485. For each decrease in unit price of $20 below $485, the quantity demanded increases by 250 units. The suppliers will not market any DVD players if the unit price is $350 or ...
*Tuesday, January 13, 2015 at 4:40pm*

**Math**

Juan bought two new tires for his bike. He also had the bike tuned up. The total bill was $65. How much did Juan spend on the 2 tires? My daughter thinks just divide by 2 and they are 32.50
*Tuesday, January 13, 2015 at 3:48pm*

**math**

which equation is the equation of a line that passes through (-10 3) and is perpendicular to y=5x-7 y=5x+53 y=-1/5x-7 y=-1/5x+1 y=1/5x+5 pls help? thanks
*Tuesday, January 13, 2015 at 3:44pm*

**math**

Shannon says my apartment number is a prime number. Which could be Shannons apartment number? 15 31 or 44 explain answer
*Tuesday, January 13, 2015 at 3:35pm*

**math - pls check!!!**

Write an equation in point-slope form for the line that passes through one of the following pairs of points (you may choose the pair you want to work with). Then, use the same set of points to write the equation in standard form and again in slope-intercept form. (5, 1) and (-...
*Tuesday, January 13, 2015 at 2:49pm*

**math**

What is the next number in the pattern 4, 9, 25, 49, 121, 169, ___
*Tuesday, January 13, 2015 at 1:24pm*

**Math - Ratio**

A map scale is 1:10,000. Find the actual distance in centimetres represented on a map by 5cm. Convert your answer to metres and kilometres.
*Tuesday, January 13, 2015 at 1:08pm*

**Math - Trigonometry**

You are riding the ferris wheel at the Montgomery County Fair. The wheel has a diameter of 36 feet and travels at a constant rate of 3 revolutions per minute. A car at its lowest is 4 feet above the ground. Write a sine function to describe the relationship between time and ...
*Tuesday, January 13, 2015 at 12:50pm*

**Math**

1400= 2/5x X= 7000 I took 1400 times 5
*Tuesday, January 13, 2015 at 12:18pm*

**Math**

Find the lateral area of the cone. Use 3.14 fo pi and round result to the nearest whole unit. radius: 15cm Side unit: 28cm Please help!! A) 1,319 cm squared B) 2,639 cm squared C) 707 cm squared D) 2,026 cm squared is the answer B?
*Tuesday, January 13, 2015 at 11:32am*

**math**

A motorist does the first part of the journey at an average speed of 54 km/h. He then increases his speed to 60 km/h for the rest of the journey. if he travels 225 km in 4 hours, what is the distance traveled for the first part of his journey????
*Tuesday, January 13, 2015 at 11:22am*

**Math**

David has a rectangular backyard and built a right triangle sandbox in the backyard. The cost of the sand is $5.50 per square foot and the border of the sandbox is $3.00 per linear foot. What was the cost of the materials of the sandbox?
*Tuesday, January 13, 2015 at 9:59am*

**math**

a 33 long rod is to be divided into three parts, each of which is progressively longer than the next part by 2 cm. how long is each part? solution pls.
*Tuesday, January 13, 2015 at 9:22am*

**math**

A piece of wooden rod 31 cm long is to be cut into three parts, two of which are to be of equal length. the length of each of the two equal part is 5 cm longer than third part. find their lengths. solution pls.
*Tuesday, January 13, 2015 at 9:18am*

**math**

If you flip a coin twice, what is the probability that a head or a tail will land up on the first flip. Express your answers as a percent.
*Tuesday, January 13, 2015 at 9:15am*

**math**

the side of an equilateral triangle measures 5 cm more than the side of a square. if both their perimeters are the same, what are their sides?
*Tuesday, January 13, 2015 at 9:12am*

**math **

find the measure of an angle if it is 6 degree less than twice its complement with solution pls.
*Tuesday, January 13, 2015 at 9:08am*

**math**

a rectangu7loar field is to be enclosed with exactly 240 meters of fencing materials. if the length is 8 meters more than the width, find the dimensions of the field with solution pls.
*Tuesday, January 13, 2015 at 8:56am*

**math**

each side of equilateral triangle is 5 cm shorter than the side of square. the sum of the perimeters of the two figures is 251 cm. how long is each side of the triangle? solution pls.
*Tuesday, January 13, 2015 at 8:53am*

**math**

the length of a rectangular mirror is 12 cm longer than its width. find its dimensional if its perimeter is 60cm.
*Tuesday, January 13, 2015 at 8:19am*

**math**

A piece of wire 34 cm long is cut into two parts. One part is to twice as long as other. how long is each part? solution pls..
*Tuesday, January 13, 2015 at 8:14am*

**math,trigonometry**

how do i state the law of sines and cosin in words ??
*Tuesday, January 13, 2015 at 7:50am*

**math**

Bo asked Luke to guess what month and day of the week he was born. If all things are considered equal, what is the probability that Luke guessed the month and the day of the week correctly.
*Tuesday, January 13, 2015 at 6:14am*

**math**

A test of 60 minutes contains questions on mathematics and english only. the time taken to solve a mathematics question is twice the time taken to answer an english question and the ratio of time taken to solve all mathematics questions to time taken to answer all english ...
*Tuesday, January 13, 2015 at 1:56am*

**math**

Mr ram has five sons ajay,balu,charan,easwar and ganesh. He had some chocolates with him which he distributed in the following manner. Twice the number of chocolates recieved by ajay, thrice the number of chocolates recieved by charan and four times the number of chocolates ...
*Tuesday, January 13, 2015 at 1:13am*

**Math**

How to simplify (x-3)/(2x) - (4x + 3)/4?
*Tuesday, January 13, 2015 at 12:59am*

**Math**

Michelle has a starting balance on a gift card for $300. She buys several dresses at $40 a piece. After her purchases she has $140 left on the gift card. How many dresses did she buy?
*Monday, January 12, 2015 at 11:58pm*

**Math**

At a tournament, 2 different games went on for a total of 93 mins. If 1 game took 13 mins longer than the other, how long did it take to complete each game.
*Monday, January 12, 2015 at 11:39pm*

**Math**

artaud noticed that if he takes the opposite of his age and adds 40 he gets the number 28. how old is artaud?
*Monday, January 12, 2015 at 11:25pm*

**Math**

A total of 10,000 is invested into two funds paying 7.5% and 9% simple interest. The combined annual income for the two funds is $849. Determine how much is invested at each rate
*Monday, January 12, 2015 at 10:56pm*

**math**

The main span of a suspension bridge is the roadway between the bridge's towers. The main span of the Walt Whitman Bridge in Philadelphia is 2000 feet long. This is 600 feet longer than two-fifths of the length of the main span of the George Washington Bridge in New York ...
*Monday, January 12, 2015 at 10:47pm*

**Math**

(-y^2)^2= ?? Is it -y^4? A negative answer??
*Monday, January 12, 2015 at 10:30pm*

**math**

If two number cubes are rolled what is the probability of getting a 1 on both cubes?
*Monday, January 12, 2015 at 10:07pm*

**math**

A cuboid measures 6cm long, 5cm wide and 4cm high. What is the total length of the edges in centimeters?
*Monday, January 12, 2015 at 10:06pm*

**math**

You plan to visit two different zoos but cannot decide which two to visit. On a piece of paper,you write the name of each zoo in the table. Then you select the names of two zoos at random. Are your selections independent or dependent events. Explain. B. What is P (Smithsonian...
*Monday, January 12, 2015 at 10:02pm*

**MATH**

1. The population of a city increases by 4000 people each year. In 2025, the population is projected to be 450,000 people. What is an equation that gives the city's population p (in thousands of people) x years after 2010? A) p=4x+450 B)p-450=4(x-5) C)p-15=4(x-450) D) p=4x...
*Monday, January 12, 2015 at 10:01pm*

**math**

San Diego left San Francisco on Tuesday at 6.30 p.m. and took 8 hours 45 minutes to reach his home. On what day and at what time in a 24 hour system did he reach home?
*Monday, January 12, 2015 at 9:56pm*

**math**

John is now two years older than Martha. If Martha's age is represented by x, what will be their total ages after 10 years?
*Monday, January 12, 2015 at 9:36pm*

**Math **

A rectangle is 26 meters long and 18 meters wide.What is the length of the diagonal of the rectangle to the nearest meter? equation: A2 + B2= C2 I don't know where to put the numbers, but I think the answer may be 32. Thank you for any help!
*Monday, January 12, 2015 at 9:22pm*

**math**

At a school prize giving day the number of men was half of women. The number of children was three times that of women. The number of women who attended was 3x. What was the sum of the men and children?
*Monday, January 12, 2015 at 9:05pm*

**math**

Karen collects local and foreign coins. of the coins in her collection, 1/4 are foreign coins. Of the foreign coins,2/5 are from mexico What fraction of the collections are foreign coins that are not from mexico?
*Monday, January 12, 2015 at 8:54pm*

**math**

allow 2 summers of working, Samuel has decided to invest his earnings. SAMUELS BANK OFFERS TWO CDS, a preferred CD $10,000 minimum at 1% interest, or a standard CD with $7000 minimum at 2%interest earned annually. Samuel has $8000 to invest. how many years will Samuel need to ...
*Monday, January 12, 2015 at 8:53pm*

**Math **

For every 1/2 mile that daylan jogs he walks 3/4 mile. What unit rate gives the number of miles daylan jogs for every mile she walks
*Monday, January 12, 2015 at 8:21pm*

**math**

3/7, 5/6, 4/5 least to greatest
*Monday, January 12, 2015 at 8:19pm*

**math/algebra**

Mr. Jenkins is going to buy museum tickets for a class trip. The museum director quotes him the following prices: • 20 tickets cost a total of $250. • 30 tickets cost a total of $375. • 50 tickets cost a total of $625. a. Based on these prices, is the cost of ...
*Monday, January 12, 2015 at 8:18pm*

**Math**

Trail Max is sold and 1 pound bags Mary will buy some trail mix and repackage it so that each of the 15 members of the biking club gets one 2/5 pound bag how many 1 pound bags of Trail mix should mary buy to have enough without leftovers
*Monday, January 12, 2015 at 8:10pm*

**math**

A checkerboard is 10 inches long on each side.What is the length of the diagonal from one corner to another? I know, I will need to use the equation... A2+B2=C2....but I don't know where to put the numbers. Thank you for the help!
*Monday, January 12, 2015 at 8:06pm*

**Math stem question**

The main span of a suspension bridge is the roadway between the bridge's towers. The main span of the Walt Whitman Bridge in Philadelphia is 2000 feet long. This is 600 feet longer than two-fifths of the length of the main span of the George Washington Bridge in New York ...
*Monday, January 12, 2015 at 7:59pm*

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