Tuesday

July 22, 2014

July 22, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**math**

A mechanical toy on a circular track goes forward 3 in. and then backward 2 in. How many moves does the toy take to complete on 15 in. revolution of the track?
*Thursday, May 8, 2014 at 4:12am*

**Math - Algebra**

Ti'a rectangular gaden has perimeter of 20 meters. She wants its area to be at least 24 square metesr. Find the interval for the possible length of Tia's garden.
*Thursday, May 8, 2014 at 3:02am*

**Math**

Last will of an eccentric lady reads: I bequest $1000 less then one half of my estate to my beloved red cat. I bequest $800 less then one third of my estate to my favorite striped cat. I bequest $600 less then one quarter of my estate to my darling black cat. All my money must...
*Thursday, May 8, 2014 at 3:00am*

**math**

(-2x)^-6
*Thursday, May 8, 2014 at 2:11am*

**math**

A▲b = 2a-3b then 2▲(-3)=
*Thursday, May 8, 2014 at 2:03am*

**math**

(a^4b^6)^0
*Thursday, May 8, 2014 at 1:58am*

**Math 2**

Lauren used 1 quart of milk to make ice cream. What is the closest to this amount of milk? Answers are either. 100 liters, 100 milliliter a, 1 milliliter, or 1 liter. Can you help answer which one is closest
*Thursday, May 8, 2014 at 12:28am*

**math**

the fabric mart had cost of goods sold at $844,000 for the year.the beginning inventory at cost was $305,500, and the ending inventory at cost amounted to $414,200. the inventory turn-over rate published as the industry standard for a business of this size is five times...what...
*Thursday, May 8, 2014 at 12:09am*

**Math **

There are three times as many people in the psychology class as in the art history class. there are 16 more people in the algebra class then the art history class The total enrollment of the three classes is 86. How many students are enrolled in each class?. I need a little ...
*Thursday, May 8, 2014 at 12:06am*

**math**

The fabric mart had costs of goods sold at $844,000 for the year
*Wednesday, May 7, 2014 at 11:35pm*

**math**

Vanessa typically works 8 hours per day in a normal 5 day work week. Last week however vanessa had to take 90 minutss off on tuesday 45 minutes off on Thursday and she left rwo and a half hours early on friday how many hours did vanessa work last week
*Wednesday, May 7, 2014 at 11:02pm*

**math**

Jen and jacob want to put a cement deck around their pool. if the cement cost $4.75 per square foot, how much is the cost of the deck? round to the nearest hundreth.
*Wednesday, May 7, 2014 at 10:52pm*

**Math 12**

In Lotto 649, find the probability that: a) You have all six correct numbers. b) You have three correct numbers.
*Wednesday, May 7, 2014 at 10:40pm*

**Math 12**

A bag contains 5 red, 3 green, and 6 marbles. If a child grabs three marbles, find P(at least 2 blue marbles).
*Wednesday, May 7, 2014 at 10:39pm*

**Math**

A box contains 95 pink rubber bands and 90 brown rubber bands. You select a rubber band at random from the box. Find each probability. Write the probability as a fraction in simplest form. a. Find the theoretical probability of selecting a pink rubber band. b. Find the ...
*Wednesday, May 7, 2014 at 10:31pm*

**Math**

Circle the angle(s) that could never be the smallest angle of a triangle. 8 degrees 47 degrees 88 degrees 91 degrees
*Wednesday, May 7, 2014 at 9:54pm*

**MATH**

One particle(atom) of gold weight 197 atomic mass units. One atomic mass unit is approximately 1.6601 x 10^-24 grams. How many particles of gold are there in 197 grams of gold? Use scientific notation where and when appropriate.
*Wednesday, May 7, 2014 at 9:48pm*

**Math**

Your uncle has 36 coins in nickels and quarters. The value of his nickels is 1/15 of the value of his quarters. Find the number of nickels. Please show progress in answer.
*Wednesday, May 7, 2014 at 9:46pm*

**MATH**

LIGHT TRAVES AT 186,300 MILES PER SECOND. IF IT TAKES 8.32 MINUTES FOR LIGHT TO TRAVEL TO EARTH FROM THE SUN, HOW FAR AWAY FROM EARTH IS THE SUN. WRITE YOUR ANSWER IN SCIENTIFIC NOTATION.
*Wednesday, May 7, 2014 at 9:44pm*

**Math**

Triangle ABC is an isosceles triangle with angle A= 40 degrees. Give three possible values for angle B
*Wednesday, May 7, 2014 at 9:15pm*

**Math 12**

Five cards are dealt from a shuffled deck of 52. Find the probability that: a) The hand has 3 spades and 2 hearts. b) The hand has 2 aces, 2 kings, and one other card.
*Wednesday, May 7, 2014 at 9:13pm*

**Math**

Circle the angle(s) that could never be the smallest angle of a triangle. 8 degrees 47 degrees 88 degrees 91 degrees
*Wednesday, May 7, 2014 at 9:13pm*

**Math 12**

One hundred tickets are sold for a raffle. Three prizes are awarded. What is the probability that Andy wins first prize, Brianna wins second, and Cam wins third? What is the probability that Andy, Brianna, and Cam are the three winners (not necessarily in that order)?
*Wednesday, May 7, 2014 at 9:12pm*

**MATH!!!!!!!**

If theres 225 students in my grade and the requirement to get into the principal list is top 5%, how many students are in the principal list?
*Wednesday, May 7, 2014 at 9:03pm*

**Math**

A man owns a rectangular piece of land. The land is divided into four rectangular pieces, known as Region A, Region B, Region C, and Region D. One day his daughter, Nancy, asked him, what is the area of our land? The father replied: I will only tell you that the area of Region...
*Wednesday, May 7, 2014 at 8:42pm*

**math**

Problem Solving and Explain. The 52 students from Babcock school were divided into 9 squads for the Coast Trip . There are 25 parents including teachers attending. If we need to purchase 2 cookies for each person to eat for 2 nights, how many dozen cookies will wee need to buy...
*Wednesday, May 7, 2014 at 7:16pm*

**math**

The length of the tropical year us 365.24220 days, as compared to the length of 365.2425 days used by the Gregorian calendar. How many years will it take for this difference to amount to 8 days? Round to the nearest year.
*Wednesday, May 7, 2014 at 6:59pm*

**Help w/ Math PLS**

If a, b, and c are three integers in geometric progression, prove that the number a^2+b^2+c^2 is exactly divisible by the number a+b+c.
*Wednesday, May 7, 2014 at 6:56pm*

**Math**

The teacher gave this pattern to the class: the first term is 5 and the rule is add 4, subtract 1. Each student says one number. The first student says 5. Victor is tenth in line. What number should Victor say?
*Wednesday, May 7, 2014 at 6:48pm*

**Math**

Problem: The 52 students from Babcock school were divided into 9 squads for the Coast Trip . There are 25 parents including teachers attending. If we need to purchase 2 cookies for each person to eat for 2 nights, how many dozen cookies will wee need to buy for the Coast Trip?
*Wednesday, May 7, 2014 at 6:39pm*

**Math**

The table shows the number of people switching to a new telecommunications company over a 7-day period in August. Day=number of people 1=10 2=17 3=37 4=79 5=106 6=231 7=500 Using this estimate how many people will switch on august 31st. * it's an exponential and ...
*Wednesday, May 7, 2014 at 6:28pm*

**Math**

How would I answer this question? 7 is subtracted from one-third of r.
*Wednesday, May 7, 2014 at 6:24pm*

**math**

What is necessary to accelerate a 25 kg mass at m/sec?
*Wednesday, May 7, 2014 at 6:18pm*

**Math**

A carpenter has several boards of equal length. he cuts 3/5 of each board. After cutting the boards, the carpenter notices that he has enough pieces left over to make up the same length as 4 of the original boards. How many boards did the carpenter start with?
*Wednesday, May 7, 2014 at 6:16pm*

**math**

simplify 10p4 A. 210 B. 360 C. 5,040 D. 151,200 simplify 9c4 A. 126 B. 15,120 C. 5 D. 3,024
*Wednesday, May 7, 2014 at 6:09pm*

**math**

The length of the tropical year us 365.24220 days, as compared to the length of 365.2425 days used by the Gregorian calendar. How many years will it take for this difference to amount to 8 days? Round to the nearest year.
*Wednesday, May 7, 2014 at 6:06pm*

**math**

Bay Area Rental Cars charges $18 a day and $.14 per mile for renting a car. You rented a car for 4 days and drove 313 miles. Find your total cost for renting the car.
*Wednesday, May 7, 2014 at 6:03pm*

**math**

Chad buys peanuts in 2 pound bags. He repackages them into bags that hold 5/6 pound of peanuts. How many 2 pound bags of peanuts should Chad buy so that he can fill the 5/6 pound bags without having any peanuts left over?
*Wednesday, May 7, 2014 at 6:03pm*

**math**

mera painted equal sections of her bedroom wall to make a pattern. She painted 2/5 of the wall white and 1/2 of the wall lavender. Write an equivalent fraction for each using a common denominator.
*Wednesday, May 7, 2014 at 6:01pm*

**math**

A temperature measurement from earths stratosphere is taken as -70 degree Fahrenheit. The temperature on the earths surface below is found to be 41 degrees Fahrenheit. Find the difference between the surface temperature reading and the stratosphere temperature reading.
*Wednesday, May 7, 2014 at 6:00pm*

**math**

quadrilateral abcd is drawn in a plane so that ab=bc=cd and ac=bd=ad. what is the measure of angle abc
*Wednesday, May 7, 2014 at 5:56pm*

**math**

a basket contains the following pieces of fruit: 3 apples, 2 oranges, 2 bananas, 2 pears, and 5 peaches. Jameson picks a fruit at random and does not replace it. Then Brittany pricks a fruit at random. What is the probability that Jameson gets a banana and Brittany gets a pear...
*Wednesday, May 7, 2014 at 5:48pm*

**MATH PLEASE HELP MRS.SUE!**

What are the next three terms in the sequence? –1, 9, 19, 29, … (1 point) 38, 37, 32 40, 51, 62 39, 49, 59 38, 47, 56 2. Geoff planted dahlias in his garden. Dahlias have bulbs that divide and reproduce underground. In the first year, Geoff’s garden produced 6 ...
*Wednesday, May 7, 2014 at 5:40pm*

**math**

if you have a jar filled with candy and every time you take one candy out you put the wrapper back into the jar. the wrapper takes 10% of the volume of a piece of candy. How many times will you have to fill the jar before half the jar is filled with candy wrappers?
*Wednesday, May 7, 2014 at 5:37pm*

**math**

each of two urns contains green balls and red balls. urn I contains 8 green balls and 12 red balls. Urn II contains 5 green balls and 8 red balls. if a ball is drawn from each urn, what is P(red and red)? A. 79/65 B. 24/65 C. 20/33 D. 2/13
*Wednesday, May 7, 2014 at 5:29pm*

**math**

a bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. you choose a marble, replace it, and choose again. what is P(read, then blue)? A. 77/164 B. 19/41 C. 90/1681 D. 45/41
*Wednesday, May 7, 2014 at 5:16pm*

**Math Question Please Help**

Two more students like math than science Half the number of students who like science like history. The number of student who like reading equals the number who like math and science combined. Two students like History. How many children (12) like each subject
*Wednesday, May 7, 2014 at 5:10pm*

**Math homework help**

Use half angle identities to find exact value. Given tan theta = -sqrt 2 / 2 and theta lies in quadrant IV, find cos theta / 2.
*Wednesday, May 7, 2014 at 5:08pm*

**math**

Food Express is running a special promotion in which customers can win a free gallon of milk with their food purchase if there is a star on their receipt. So far, 129 of the first 138 customers have not received a star on their receipts. What is the experimental probability of...
*Wednesday, May 7, 2014 at 4:58pm*

**Math**

A glass held 2/5 cup of water, Carlo poured out 3/8 cup, how much is left?
*Wednesday, May 7, 2014 at 4:47pm*

**math**

Diane plans to drive 30 miles to her interview. If she averages 25 miles per hour, how long will it take her to get there? Answers: (A) 50 minutes (B) 55 minutes (C) 1 hour and 12 minutes (D) 1 hour and 20 minutes
*Wednesday, May 7, 2014 at 4:44pm*

**math**

a number cube is rolled 150 times. the number 3 comes up 43 times. hat is the experimental probability of rolling a 3? what is the theoretical probability of rolling a 3? A. 43/150 ; 1/6 B. 43/150 ; 1/50 C. 1/6 ; 43/150 D. 3/43 ; 1/6
*Wednesday, May 7, 2014 at 4:32pm*

**Math**

The columbia icefield is located between banff and jasper in Alberta. It covers an area of more than 300 km squared and has ice that is up to 365 m thick in some places. How can studying this icefield give scientist information on climate patterns
*Wednesday, May 7, 2014 at 4:02pm*

**Math**

What amount should be accepted as equivalent, 60 days before an obligation of $1480 is due, if money can earn 6 3/4%?
*Wednesday, May 7, 2014 at 3:54pm*

**math**

The ABC Toy Company is creating two similar pieces for a board game as shown below. Find the value of b that makes the two pieces similar.
*Wednesday, May 7, 2014 at 3:04pm*

**math**

1. A bag contains 9 tiles numbered 1 to 9. P(4) = 1/9. what type of probability is illustrated and why? (1 point) . experimental; the result is found by repeating an experiment. . experimental; the result is based on the number of possible outcomes.**** . theoretical; the ...
*Wednesday, May 7, 2014 at 2:52pm*

**MATH **

Please help me solve this problem. My grandfather has a big collection of silver dollars and 50 cents pieces. He promised to give one fourth of his collection to the first of his grandchildren, who can figure out the total value of his coins. The only clues he will give are ...
*Wednesday, May 7, 2014 at 2:04pm*

**Math**

In Magic Diamond use numbers 1-12. Each row must equal the same sum. # # # # # # # # # # # #
*Wednesday, May 7, 2014 at 1:41pm*

**math**

Solve the problem. An average library contains at least 50 and at most 250 books. How many library owners must be polled to be certain that at least two owners have the same number of books in their libraries?
*Wednesday, May 7, 2014 at 12:02pm*

**Math (Quadratic Equations)**

A field is bound on one side by a river. A farmer wants to enclose the other three sides of the field with fence in order to create a rectangular plot of land for his cows. If the farmer has 400m of fence to work with, determine the maximum possible area of the field and the ...
*Wednesday, May 7, 2014 at 11:40am*

**Math**

You have six $1 bills, eight $5 bills, two $10 bills, and four$20 dollar bills in your wallet. You select a bill at random. Without replacing the bill, you choose a second bill. What is P($1, then $10)? A. 77/190 B. 3/100 C.3/95 D.2/5
*Wednesday, May 7, 2014 at 11:03am*

**Math**

A bag contains 5 green marbles, 8 red marbles, 11 orange marbles, 7 brown marbles, and 12 blue marbles. you choose a marble, replace it, and choose again. what is P(red then blue.)
*Wednesday, May 7, 2014 at 10:57am*

**Math**

A primary researcher is paid 80,000, two associates each are paid 45,000 a year. Each associate is responsibility for supervising up to eight sites. PT-Research assistants(2) are each paid 6,000 and are only able to support three sites each. The center must budget 30% of the ...
*Wednesday, May 7, 2014 at 10:52am*

**math**

Use the graph below to answer the following question. 1. Find the slope. (1 point) 2 – –2 Use the graph below to answer the following question. 2. Find the slope of the line. Describe how one variable changes in relation to the ...
*Wednesday, May 7, 2014 at 9:30am*

**math**

Ricki Cohn Encyclopedia sales Commission rate: 11% Month’s sales: $2,550 What is the monthly commission
*Wednesday, May 7, 2014 at 9:18am*

**math help!!!**

stuck!! pls help/explain!!! 2. Do the values in the table represent a linear function? If so, what is the function rule? (1 point) x = -2, 0, 2, 4 y = -4, 0, 4, 8 The values do not show a linear function. Yes, they show a linear function; y = x + 4. Yes, they show a linear ...
*Wednesday, May 7, 2014 at 8:32am*

**Algebra**

For their homecoming parade the students of U-Math have created a colorful banner, 53 meters in length, that is made of two pieces of parachute material. The short piece is 19 meters shorter then the long piece. Find the Length of each piece. Length of the long piece = Length ...
*Wednesday, May 7, 2014 at 7:25am*

**math**

6(a-b) - 5(2a + 4b)
*Wednesday, May 7, 2014 at 7:14am*

**math**

A company feeds 15000 people per day for one month at a cost of 3.95 but the next month they will increase the number of people by 30%. what is the total?
*Wednesday, May 7, 2014 at 3:58am*

**Math Problem**

An organization rents a 500 square foot office at a cost of $10 per square foot per year. How much must they pay
*Wednesday, May 7, 2014 at 3:45am*

**Math**

1. Historically,40% of the adopted dogs rescued spend an average of 8 days in a kennel costing $10 a day. Puppies-100 Dogs-650
*Wednesday, May 7, 2014 at 3:43am*

**Math**

Jamal invested $5000.00 in an account that earns 2.50% simple interest per annum for a term of 10 years. A.) How much interest will he earn? B.) How much will his investment be worth at the end of the term?
*Wednesday, May 7, 2014 at 12:27am*

**math**

Math two/y=2 ___ ____
*Tuesday, May 6, 2014 at 11:52pm*

**Math 3**

A school cafeteria serves. 60,000 ounces of milk during a 3 school week period. If the same amount is served each day, how much milk does the cafeteria serve each day?
*Tuesday, May 6, 2014 at 11:49pm*

**Math 2**

Thomas is making punch for a party. He mixes two 32 ounce bottles of ginger ale with 3 16 ounce bottles of fruit punch. He wants to pour the punch into 8 ounce cups. How many cups can Thomas fill?
*Tuesday, May 6, 2014 at 11:47pm*

**Math**

When an engineer inspects a pipeline she notices a high water mark. How much space is there between the high water level and the top of the pipe, to the nearest hundredth. The diameter of the pipe is 1.2m and the horiztonal distance across the surface of the water is 80 cm.
*Tuesday, May 6, 2014 at 11:46pm*

**Math**

Add: 2/y^2 - 3x/y-x - 3/y
*Tuesday, May 6, 2014 at 11:46pm*

**Math**

which display is best to determine the relationship between the number of hours worked and the amount of money paid? A)histogram with intervals of 5 B)histogram with intervals of 3 C)line plot D)line graph I think it would be D
*Tuesday, May 6, 2014 at 11:31pm*

**Sam**

only 2/9 the university students wanted to become math teachers. if 2800 didn't want to become math teachers how many university students were there? So, 2/9 * WN = 2800? How would you work it out?
*Tuesday, May 6, 2014 at 11:21pm*

**Math**

Jared drew a scatter plot comparing the number of hours worked and the amount of money earned over the course of a week. He graphed the ordered pairs(number of hours, amount paid)for each day worked. Which of the three scatter plots below most likely represents the data? What ...
*Tuesday, May 6, 2014 at 11:18pm*

**math**

Write an equation of a line in standard form with a slope of -8 and passing through the point (-10, 2).
*Tuesday, May 6, 2014 at 11:15pm*

**math**

Jims records the number of cars his team sells in each month for a year. 4,6,8,6,7,3,5,3,9,8,7,9 What percent of the months does his team sell more than 6 cars?
*Tuesday, May 6, 2014 at 10:18pm*

**Math!!**

-3(-9) + (3 + 2(5)squared =
*Tuesday, May 6, 2014 at 10:16pm*

**math**

Jennifer works in a flower shop. On Saturday she started work at 8:45 a.m. She finished at 4:15 p.m. How many hours did Jennifer work after noon?
*Tuesday, May 6, 2014 at 10:00pm*

**math**

suppose the ratio of your income last year to your income this year is 3 to 2. explain what this means. give an example of the dollars earned last year and this year that fits the 3 to 2 ratio.
*Tuesday, May 6, 2014 at 9:58pm*

**Math**

If a, b, and c are three integers in geometric progression, prove that the number a^2+b^2+c^2 is exactly divisible by the number a+b+c.
*Tuesday, May 6, 2014 at 9:57pm*

**math**

find the best buy on spaghetti sauce. you have a coupon for $0.75 off brand x and a coupon for $0.25 off brand y. 28 ounces of brand x for $3.89 18 ounces of brand y for $1.89 13 ounces of brand z for $1.29
*Tuesday, May 6, 2014 at 9:27pm*

**Math**

If two dice are rolled, what is the probability that a total is showing more than four
*Tuesday, May 6, 2014 at 9:20pm*

**Math**

Calculate the interest and the total amount. a)a loan of $1750 at a 4.8% for over five years. b)an investment of 1500 at 3% per year over three years.
*Tuesday, May 6, 2014 at 9:17pm*

**Math**

If two fair dice are rolled, what is the probability that a total of five shows?
*Tuesday, May 6, 2014 at 9:11pm*

**math**

x+9=2
*Tuesday, May 6, 2014 at 9:06pm*

**math**

a boat travels 75 miles in 4 hours. at that rate, how long will it take to travel 120 miles?
*Tuesday, May 6, 2014 at 9:03pm*

**Math**

Samuel earns 0.2% interest each year on his savings account. If he has $3500 in his savings account for a year, how much interest will he have at the end of the year?
*Tuesday, May 6, 2014 at 9:03pm*

**math**

Pedro types 240 words in 5 minutes. How many words can he type in 12 minutes? please help.
*Tuesday, May 6, 2014 at 9:01pm*

**math**

trish bought 3,000 shares of stock for 59 dollars per share six months laters she sold 3,000 shares for 75 dollars per share if the commission 975 how much did she profit
*Tuesday, May 6, 2014 at 8:39pm*

**math**

Greg and Verena both work for the Spelling Company. Greg earns $18.60 per hour as an assembler, and Verena earns $12.20 per hour as a technician. Last week Greg worked es031-1.jpg hours and Verena worked es031-2.jpg hours. What was their combined earnings for the week?
*Tuesday, May 6, 2014 at 8:39pm*

**Math!!**

-3(-9) + (3 + 2(5)squared =
*Tuesday, May 6, 2014 at 8:22pm*

**math**

(3 + -9)squared =?
*Tuesday, May 6, 2014 at 8:19pm*

**math**

2(3)cubed - (-9 + 5)squared =?
*Tuesday, May 6, 2014 at 8:18pm*

**Math**

An additional to a house increases the floor area from 275m² to 300m². By what percent was the original floor area increased?
*Tuesday, May 6, 2014 at 8:00pm*

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