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January 31, 2015

January 31, 2015

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**math**

If both numerator and denominator of a fraction are increased by one, the fraction formed is 2/3. if both numerator and denominator are decreased by two, the fraction formed is 3/5. what is the fraction formed, if both numerator and denominator are increased by four? Please ...
*Thursday, November 27, 2014 at 7:56am*

**math**

find twonumbers such that the sum of twice the first and thric the second is 92 and four times the exceeds seven times the second by 2
*Thursday, November 27, 2014 at 4:49am*

**math**

a lady has only 20 paisa coins and 25 paisa coins in her purse if she has 50 coins in totalling rupees 11.50 how many coins of each kind does she have
*Thursday, November 27, 2014 at 3:54am*

**math**

What is 1/2%, I say 1/2% = 0.5%, but my mom says its 50%, am I correct.
*Wednesday, November 26, 2014 at 9:04pm*

**Math**

A Sony 55" television set is selling for $1,499.99 with a savings of $1,500.00. Calculate the percent markdown after rebate for the product
*Wednesday, November 26, 2014 at 7:44pm*

**Math**

Carousel Toys has rompers, wooden rocking horses for toddlers, on a 30% markdown sale for $72.09. What was the original price before markdown? Round to nearest cent
*Wednesday, November 26, 2014 at 6:56pm*

**math**

9 of the 30 children in a class had brown eyes what fraction of the children have brown eyes
*Wednesday, November 26, 2014 at 5:58pm*

**Bus. Math**

The Soft Step Floor Co. Purchases carpeting for $5.12 per square yard and marks it up 55% based on the selling price. What is the selling price per square yard? Round to the nearest cent
*Wednesday, November 26, 2014 at 5:53pm*

**math**

Show how to make one addend the next ten number. complete the new addition sentence. 6) 18+3=___ ___+___=___ 7) 27+24=___ ___+___=___
*Wednesday, November 26, 2014 at 5:27pm*

**Math**

What is the first step in solving the equation 3/4 divided by 2/3
*Wednesday, November 26, 2014 at 5:09pm*

**Math**

Laura has $80 saved for a new laptop. This is 20% of the total amount she needs for the laptop. How much does the new laptop cost?
*Wednesday, November 26, 2014 at 4:24pm*

**Math**

Peter has money in two savings accounts. One rate is 9% and the other is 11%. If he has $400 more in the 11% account and the total interest is $117, how much is invested in each savings account?
*Wednesday, November 26, 2014 at 3:48pm*

**math**

Scenario 1) You and your friend enjoy riding your bicycles. Today is a beautiful sunny day, so the two of you are taking a long ride out in the country side. Leaving your home in Sunshine, you ride 6 miles due west to the town of Happyville, where you turn south and ride 8 ...
*Wednesday, November 26, 2014 at 2:47pm*

**Math--1 question**

Find the mean, median, mode, and range of the data: 32, 34, 30, 35, 33, 31, 54. If necessary, round to the nearest tenth. Show your work.
*Wednesday, November 26, 2014 at 2:32pm*

**Math**

A ball is thrown straight up from a bridge over a river and falls into the water. The height, h, in meters, of the ball above the water t seconds after being thrown is approximately modeled by the relation h=-5t^2+10t+35. Can you please help me ! Show your work. a) What is the...
*Wednesday, November 26, 2014 at 12:42pm*

**math!!**

5^6 * 5^3
*Wednesday, November 26, 2014 at 11:54am*

**math**

conver the numeral to a numeral in base 10 1101 basetwo can some one plz help .
*Wednesday, November 26, 2014 at 11:44am*

**math**

8,18,28,38,48 what is the next term? i came up with 10 am i correct? is this consider arithmetic or geometric?
*Wednesday, November 26, 2014 at 11:41am*

**math**

the yearbook club is having a bake sale to raise money for the senior class. LArge cupcakes are sold for 1.25 and small cupcakes are .75. If 105 cupcakes were sold for a total amount of 109.75, how many large cupcakes did the yearbook club sell?
*Wednesday, November 26, 2014 at 11:31am*

**Stats Math 3**

Suppose a simple random sample of size n=150 is obtained from a population whose size is N=20,000 and whose population proportion with a specified characteristic is p=0.8. Please answer questions (1) through (5) below. (1) Describe the sampling distribution of p^ (choose the ...
*Wednesday, November 26, 2014 at 7:11am*

**Stats Math 2**

Exit polling is a popular technique used to determine the outcome of an election prior to results being tallied. Suppose a referendum to increase funding for education is on a ballot in a large town (voting population over 100,000). An exit poll of 300 voters finds that 144 ...
*Wednesday, November 26, 2014 at 7:07am*

**STATS Math**

Suppose a simple random sample of size n=150 is obtained from a population whose size is N=20,000 and whose population proportion with a specified characteristic is p=0.8. Please answer questions (1) through (5) below. (1) describe the sampling ditriribution of p^ (choose the ...
*Wednesday, November 26, 2014 at 7:03am*

**Math**

Three equivalent ratios for 5/6
*Wednesday, November 26, 2014 at 6:57am*

**math**

of 10 girls in a class, 3 speak French.If two girls are chosen at random, what is the probability that both speak french
*Wednesday, November 26, 2014 at 3:55am*

**Math**

A bag contains 10 white balls and 6 yellow balls. We need to add 112 balls to the bag and keep the ratio the same. How many of each do we need to add. - What's the correct formula to use?
*Tuesday, November 25, 2014 at 10:13pm*

**Math Help!**

Out of 75 students, 15 are on the student council. What percent are on the student council? A.20% B.80% C.40% D.60% Is the answer D?
*Tuesday, November 25, 2014 at 9:58pm*

**Math Help!**

On a 40-question test, Peggy answers 34 questions correctly. What percent of the questions does she answer correctly? A. 85% B. 0.75 C. 1.17% D. 8.5% Is the answer A?
*Tuesday, November 25, 2014 at 9:53pm*

**Math Help!**

Write a percent equation that can be used to solve the following problem: 25 is what percent of 350? A. n= 25 x 350 B. 350 =p x 25 C. 0.25= p x 350 D. none of these Is the answer D?
*Tuesday, November 25, 2014 at 9:48pm*

**Math Help!**

Write a percent equation that can be used to solve the following problem:820 is 20% of what number? A. n=0.2x 820 B. 820=0.2x n C. 0.2= nx 820 D. none of these Is the answer A?
*Tuesday, November 25, 2014 at 9:45pm*

**Math Help!**

Identify the part,whole,and percent in the following statement: Find 15% of 750 A. part=750,whole=n,percent=15 B. part=15, whole=750,percent=p C. Part=n,whole=750,percent=15 D.none of these Is the answer C?
*Tuesday, November 25, 2014 at 9:39pm*

**Math**

A trees shadow is 32 feet long how tall is the tree?
*Tuesday, November 25, 2014 at 8:29pm*

**Math**

Currently you have $80 and your sister has $145. You decide to save $6 of your allowen e each week, while your sister spends her whole allowance plus $7 a week. How long will it be before you have as much money as your sister?
*Tuesday, November 25, 2014 at 8:08pm*

**Math**

What fraction equals 1/2
*Tuesday, November 25, 2014 at 7:32pm*

**math**

create a situation to describe the rule y=8x+20
*Tuesday, November 25, 2014 at 7:11pm*

**6th grade Math**

Rafael asked 85 students what kind of pet they liked the most. Exactly 35% of the students said they liked dogs best. What was the total number of students who said they liked dogs best? Please show work!!
*Tuesday, November 25, 2014 at 7:07pm*

**Math **

Louis paid $42 for a dozen magazines with her annual and subscription to her favorite sport magazine. What is the unit cost for each magazine?(How many magazines did she subscribe to) Please show work.
*Tuesday, November 25, 2014 at 6:15pm*

**math show work please**

1/(X+3)+4/(x+5)= 2/(x^2+8x+15) a. the solution set is b. the solution set is all real numbers c. the solution set is empty
*Tuesday, November 25, 2014 at 5:58pm*

**Math**

7b - 2 = 1b + 10
*Tuesday, November 25, 2014 at 5:57pm*

**math show work please**

1-11/x+30/x^2=0 A.the solution set is ? B.The solution set is the set of real numbers or C. the solution set is an empty set
*Tuesday, November 25, 2014 at 5:56pm*

**math**

sqrt(x) * 7sqrt(x)
*Tuesday, November 25, 2014 at 5:39pm*

**math**

a hollow shaft has a cross sectional area of 8.68 cm square if its inside diameter is 0.75 cm, calculate its outside diameter.
*Tuesday, November 25, 2014 at 4:36pm*

**math**

how i make triangular prism,the dimensions are 6 unit base and 6 unit height,but the entire prism has height of 15 unit
*Tuesday, November 25, 2014 at 4:21pm*

**Math **

Solve using the annihilator method Y"-8y'+20y=5xe^(4x) sin (2x)
*Tuesday, November 25, 2014 at 3:54pm*

**math**

multiply -2(p-q)
*Tuesday, November 25, 2014 at 3:25pm*

**math**

find the prime factorization of 35^3 *55*9^11
*Tuesday, November 25, 2014 at 3:13pm*

**MATH**

Rick has a box of coins .The box currently contains 51 coins, consisting of pennies, dimes and quarters. The numbers of pennies is equal to the numbers of dimes and the total value is $5.73. How many of each denominations of coins does he have? the number of pennies which is ...
*Tuesday, November 25, 2014 at 3:12pm*

**Math**

A square cage is built with 20 ft of wire fencing. How long is each side?
*Tuesday, November 25, 2014 at 3:10pm*

**1 Math question**

Estimate $6.56 + $13.02 using front-end estimation. about $19.60 about $18.60 about $20.10 *** about $17.10
*Tuesday, November 25, 2014 at 2:37pm*

**Math! Need The Help!**

Which is the best buy? A. $12.40 for 6 boxes of tissues B. $10.58 for 5 boxes of tissues C. $14.11 for 9 boxes of tissues D. $15.47 for 8 boxes of tissues
*Tuesday, November 25, 2014 at 2:37pm*

**Math Help! ASAP!**

2. Write a ratio for the situation in three ways comparing the first quantity to the second quantity. In union City, about one in every three homes has two cars A. 5 to 2, 5:2, 5/2 B. 1 to 3, 1:3, 1/3 C. 5 to 3, 5:3, 5/3 D. 3 to 2, 3:2, 3/2 I picked D. I dont know if its ...
*Tuesday, November 25, 2014 at 2:19pm*

**I need help in 6th math**

Elizabeth has 1 7/10 as many plants as Rosalie has in her garden. If Elizabeth has 51 plants, how many plants does Rosalie have in her garden? Would it be 56?
*Tuesday, November 25, 2014 at 2:18pm*

**Math**

Log2base10=0.301 and log3base10= 0.477. Evaluate log45base10
*Tuesday, November 25, 2014 at 2:02pm*

**Math**

Early pay: Pay $60 before memorial day: swim any number of days Write an equation in slope-intercept form so that x is the number of days and y is the cost.
*Tuesday, November 25, 2014 at 1:34pm*

**math **

multiply and simplify 5^6 * 5^3
*Tuesday, November 25, 2014 at 1:30pm*

**math!!**

a high school has a student reduction and lost 1/10 of its students. If 198 of its students were left after the reduction. How many students were there to start with.
*Tuesday, November 25, 2014 at 1:25pm*

**math **

find a value for x so that 28/12 = -7/x x=?
*Tuesday, November 25, 2014 at 1:22pm*

**Math... Stuck... A little help?**

x cube plus kx plus 9=0 I took it as: x^3+kx+9=0 I answered: If so......... x^3+kx+9=0 Subtract 9 from both sides (Somenoe correct me if I'm wrong, please) which looks like: x^3+kx+9-9=0-9 Now the best part.... finding variables x^3+kx=9 x^3+(k•x)=9 Hmmm... x^3= (x&#...
*Tuesday, November 25, 2014 at 1:15pm*

**math**

the number of professors in a collage is P and the number of students is S and there are 15 times as many students as professors. write the answer as an algerbra equation.
*Tuesday, November 25, 2014 at 1:08pm*

**Math. (Check Answers) STUCK**

HI, I'm stuck on two questions(: Round the number to the thousandths place. 97093.113469 Is it 97093.113 < -- ? 97093.112 97093.114 97000 Without multiplying, determine the sign of the product. (19)(-2)(37)(-0.8)(112) Postive Negative <-- ? The product is zero
*Tuesday, November 25, 2014 at 12:30pm*

**math**

x cube plus kx plus 9=0 give me answer
*Tuesday, November 25, 2014 at 12:23pm*

**Math**

1. What value for x makes the sentence true? 7x = 1 0 6 3 2
*Tuesday, November 25, 2014 at 11:42am*

**easy math **

-5.4 ÷ 0.9 = -6.0 < --- ? this one or -0.6 0.6 6.0
*Tuesday, November 25, 2014 at 11:26am*

**math**

a 154 lb person burns 420calories per hour riding an exercise bicycle at a rate of 15 mi/hr write a function rule to represent the total calories burned over time by that person.
*Tuesday, November 25, 2014 at 10:10am*

**math**

John bought a total of 30 white and brown pens for a total of $32. The cost of each white pen is 70 cents more than the cost of each Brown pen. Which would be the possible value of the cost of each Brown pen( in cents)? Please help me in forming a equation.
*Tuesday, November 25, 2014 at 6:26am*

**math**

Simplify completely quantity 6 x squared minus 54 plus 84 over quantity 8 x squared minus 40 x plus 48 divided by quantity x squared plus x minus 56 over quantity 2 x squared plus 12 x minus 32
*Tuesday, November 25, 2014 at 6:19am*

**math**

The cost of printing the first fifteen hundred copies of a book is $1500. It costs y dollars to print each subsequent copy. The cost of printing the first 7500 copies of the book is $7080. Find Y. Please explain how to solve it.
*Tuesday, November 25, 2014 at 5:38am*

**business math **

Molly Ellen, bookkeeper for Keystone Company, forgot to send in the payroll taxes due on April 15. She sent the payment November 8. The IRS sent her a penalty charge of 8.80% simple interest on the unpaid taxes of $3,600. Calculate the penalty. (Remember that the government ...
*Tuesday, November 25, 2014 at 1:03am*

**integrated math**

A 150 yard pipe is cut to provide drainage for two fiekds. If the length of one piece us 3 yards less than twice the length of the second piece, what are the lengths of the two pieces?
*Tuesday, November 25, 2014 at 12:26am*

**math **

Determine the value of k for which the direction vectors of the lines x-1/k = y-2/2 = z+1/k-1 and x+3/-2 = z/1, y=-1 are perpendicular.
*Monday, November 24, 2014 at 10:33pm*

**Math with business apps**

How much should be invested at 6% compounded monthly so that the investment will be worth $20,000 in six years?
*Monday, November 24, 2014 at 9:43pm*

**Math with business apps**

You invest $5000 at 3% compounded monthly for 15 years. How much interest will you earn?
*Monday, November 24, 2014 at 9:42pm*

**Math with business apps**

Tom invested $7,000 at 6.5% interest compounded monthly. How much will be in this account after 18 months?
*Monday, November 24, 2014 at 9:40pm*

**Math 3371**

In a certain year, 26% of all teenagers in the United States had checking accounts. Your bank, TeenChex Inc., is interested in targeting teenagers who do not already have a checking account. (a) If TeenChex selects a random sample of 3,000 teenagers, what number of teenagers ...
*Monday, November 24, 2014 at 9:36pm*

**MATH!!**

Joe and Susan invested $1500 at Bank of America in 2000, at 4% compounded quarterly. In the year 2005 they moved to another city and took the total money from their investment added $500 and invested in at Bank Bravo, at 5% compounded quarterly. a) What is the value of this ...
*Monday, November 24, 2014 at 9:07pm*

**MATH!**

Barbara invested $12,300 at the Midtown Credit Union at 6% compounded monthly for 7 years. What is the effective rate of this investment?
*Monday, November 24, 2014 at 9:05pm*

**Math**

chris cuts half a rectangular lawn, 40m by 30m, by mowing strips of equal width around the perimeter. Jerri cuts the small rectangle left. How wide a stripe does Chris cut so they share the work equally
*Monday, November 24, 2014 at 8:48pm*

**Math**

Student budgeted a $25 a month for phone service. If the telephone company charges $18 a month for basic service and $.05 a minute for each long distance call, how many minutes can be spent on long distance calls each month?
*Monday, November 24, 2014 at 8:45pm*

**Algebra math Question**

Find the dimensions of the rectangle meeting the specified conditions. The perimeter is 352 feet and the length is 4 1/2 times the width. width ft length ft
*Monday, November 24, 2014 at 8:43pm*

**Algebra math Question**

Find the dimensions of the rectangle meeting the specified conditions. The perimeter is 20.4 millimeters and the length is 2.4 times the width. (Round your answers to one decimal place.) width mm length mm
*Monday, November 24, 2014 at 8:29pm*

**Math - ratio**

Mr. Rahim had the same amount of money in his three bank accounts at first. He deposited $44 into account b and $ 80 into account c. In the end, the ratio of the amount of money in ac!@#$%^& a to the amount of money in account c was 2:7. How much money was there in account b ...
*Monday, November 24, 2014 at 8:17pm*

**math**

36-9/{(0.24*5)+(0.66*5)}
*Monday, November 24, 2014 at 8:07pm*

**Math**

A worker uses 4gray tiles for every 5blue tile That he uses .if he uses 60gray tiles how many blue tiles does he use
*Monday, November 24, 2014 at 8:01pm*

**math problem (please help)**

What are the dimensions of a rectangular tract of land if its perimeter is 70 kilometers and its area is 300 square kilometers? km (smaller value) akm (larger value)
*Monday, November 24, 2014 at 7:58pm*

**math**

A cone is made from the figure shown by joining the straight edges and securing them with tape, calculate the angle of inclination, to the nearest tenth of a degree, for the side of the cone.
*Monday, November 24, 2014 at 7:55pm*

**math!!**

mike and sam begin saving money at the same time. mike plans to save $3 a month and sam plans to save $8 a month. After how many months will sam have $25 more than mike?
*Monday, November 24, 2014 at 7:32pm*

**Math I need help ASAP! I'm getting timed**

Which ratios form a proportion? 1. 4/12 , 6/8 2. 16/12 , 3/4* 3. 3/2 , 15/14 4. 10/16 , 5/8 Which ratio forms a proportion with 9/15? 1. 6/10 2. 16/21 3. 36/50 4. 45/70 A textbook weighs 2.5 pounds. How many kilograms does the textbook weighs? Round your answer to the nearest ...
*Monday, November 24, 2014 at 7:05pm*

**math**

Ms.Johnson gives twice as much daily homework as Mr. Beach. Mr.Beach gives out 10 minutes less than Mrs.Rodriguez. if Mrs.Rodriguez gives 35 minutes of homework,what is the total amount of homework given by the three teachers? ---- So do you just half it so,Mr.Beach gives 5,...
*Monday, November 24, 2014 at 7:01pm*

**MATH**

Janet dreams to go on vacation in three years. How much should she invest now so that she will have $15,000 by that time if the account earns 1 3/8% compounded quarterly?
*Monday, November 24, 2014 at 6:58pm*

**MATH**

{56.0/25}+1-100=
*Monday, November 24, 2014 at 6:50pm*

**math calculus**

if i,j,k are the standard unit basic vectors, in 3 space, determine the value of k dot(j-3k)+(i-4k) dot (i-4k)-8 |i cross -k| (Simplify without using components)
*Monday, November 24, 2014 at 6:48pm*

**Math**

You invest $5,000 at 3% monthly for 15 years. How much interest will you earn?
*Monday, November 24, 2014 at 6:43pm*

**Math**

Tom Invested $7,000 at 6.5% interest compounded monthly. How much will be in this account after 18 months?
*Monday, November 24, 2014 at 6:31pm*

**math**

change the following mixed numbers to a fraction in the forma/b were a and b are integers 3 5/6 ?
*Monday, November 24, 2014 at 6:15pm*

**math**

arrange in order smallest to largest 0.8315, 0.75 ,0.7024 is this right 0.75 0.7024 0.8315
*Monday, November 24, 2014 at 6:06pm*

**math **

The ratio of boys to girls on the bus is 20/15
*Monday, November 24, 2014 at 6:04pm*

**MATH**

In a fraternity with 38 members , 18 take math, 5 take both math and literature and 8 take neither math or literature. how many take literature but not math? I came up with 16 is that correct or am i lost ?
*Monday, November 24, 2014 at 6:03pm*

**Math**

As a savings plan for college, when their son Bill was born, the Johnson's deposited $10,000 in an account paying 4% compounded quarterly. How much is this account when Bill is 18 years old?
*Monday, November 24, 2014 at 6:01pm*

**Math Help!**

Mrs. Miller sells a house for $179,000. If she earns a commission of 6%, how much money does she earn? Write a porportion and show your work. My answer 179,000/100=x/6 107400=100x 10,740=x Am I right? Thank you
*Monday, November 24, 2014 at 5:15pm*

**math**

Jane had $7 and her sister had $2. Their parents gave each of them an equal amount of money. Then, Jane had twice as much money as her sister. How much money did their parents give each of them
*Monday, November 24, 2014 at 5:05pm*

**Math Help!**

30% of 60 is what number? A. 15 B. 30 C. 18 D. 40 Is the answer C? Thank you
*Monday, November 24, 2014 at 5:04pm*

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