Branches of Math
Recent Math Questions
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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! 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
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... 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+(kx)=9 Hmmm... x^3= (x...
Tuesday, November 25, 2014 at 1:15pm
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
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
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
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
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
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
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
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
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
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
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 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
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
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
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
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
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
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
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
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
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