Sunday

March 1, 2015

March 1, 2015

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**math**

3x+4=19 X=5 5+C/9=31 C=-324 11=2Y-15 Y=13
*Tuesday, February 24, 2015 at 10:13pm*

**Math**

19>-n/5+9
*Tuesday, February 24, 2015 at 10:02pm*

**math**

A coin bank contains $2.80 in dimes and quarters. The bank contains the same number of each coin. How many of each coin does the bank contain. I have to write an expression.
*Tuesday, February 24, 2015 at 9:56pm*

**math**

The ratio is 2:7>their mom gives each of them the 15 marbles and now David has twice as many marbles as Charlie.How many marbles does each boy have
*Tuesday, February 24, 2015 at 9:40pm*

**math**

A rectangle has an area of 48 square feet and a length of 10 feet. What is its width?
*Tuesday, February 24, 2015 at 9:36pm*

**math**

A length of string that is 22 feet long is being cut into piece that are 1/3 foot long. How many pieces will there be?
*Tuesday, February 24, 2015 at 9:16pm*

**math**

A computer store charges a $40 service fee plus $35 for each hour it takes to repair a computer. Write an expression that gives the total cost of a repair that takes h hours. 40+35h A fitness club charges a $100 activation fee and $33 for each month. Write an expression for ...
*Tuesday, February 24, 2015 at 9:14pm*

**math**

a box contains 3 red marbles, 4 white marbles and 5 yellow marbles.find the probability that a red marble and then a yellow marble to be pick up on two successives drawing then there is a replacement of the marbles
*Tuesday, February 24, 2015 at 9:11pm*

**Math**

6+9r-4(3r-7)
*Tuesday, February 24, 2015 at 8:41pm*

**math**

Answers (not puzzle, math answers) to what do you call it when someone pays back a quick loan. I know the answer is a sudden debt pay off i need help writing them out(math part).
*Tuesday, February 24, 2015 at 8:38pm*

**math**

-32 is less than or equal to 24-2f
*Tuesday, February 24, 2015 at 8:36pm*

**math**

A store sells one model of bicycle for $250. a. Write an expression for the amount of money the store receives if it sells b bicycles. b. How much would the store make if it sells 5 bicycles.
*Tuesday, February 24, 2015 at 8:30pm*

**math**

2y-3(-2y-4y+5)
*Tuesday, February 24, 2015 at 8:23pm*

**math**

Brian cut an extra large round pizza into 8 pieces. Seven of th pieces were eaten. What angle measures of pizza is left?
*Tuesday, February 24, 2015 at 8:17pm*

**math**

75=m/3+10
*Tuesday, February 24, 2015 at 8:16pm*

**math**

Consider the Standard Normal curve: (a) Find the area between z = -0.45 and z = 1.45 (b) Find the value of z such that the area to the right of z is 1.5%.
*Tuesday, February 24, 2015 at 8:05pm*

**Math**

Describe how to rename an improper fraction as a mixed number. Use an example to explain. I don't get the "renaming" part. Does it mean to explain how to convert it?
*Tuesday, February 24, 2015 at 7:43pm*

**math**

The perimeter of a rectangular window is 634 inches. If the length of the window is 205 inches, what is the width of the window? Is the answer 112 inches?
*Tuesday, February 24, 2015 at 7:13pm*

**Math**

Look for the angle (θ) between the vectors. Remember to round your answer to the nearest tenth. a.) u=<3,2> v= <4,0> b.) u = 2i - 3j v = i - 2j
*Tuesday, February 24, 2015 at 6:43pm*

**math**

The accompanying tree diagram represents a two-stage experiment. (Let x = 0.3, y = 0.7, r = 0.55, s = 0.45, t = 0.55, and w = 0.45.) (a) Find P(A) · P(D | A). Correct: Your answer is correct. (b) Find P(B) · P(D | B). Incorrect: Your answer is incorrect. (c) Find...
*Tuesday, February 24, 2015 at 6:34pm*

**maths**

mrs. brittle is planning a party for all students who get a level 3 or 4 on math test.using a total of $112.00 she plans to get a pizza that costs $12.00 each and drinks that $0.50 each. if she purchases four times as many as pizzas how many of each should she buy ?
*Tuesday, February 24, 2015 at 6:20pm*

**maths**

mrs. brittle is planning a party for all students who get a level 3 or 4 on math test.using a total of $112.00 she plans to get a pizza that costs $12.00 each and drinks that $0.50 each. if she purchases four times as many as pizzas how many of each should she buy ?
*Tuesday, February 24, 2015 at 6:19pm*

**MATH I HATE problem solving~ms sue and others plz **

Mateo played the same card game that Jill played. (other story problem red cards r - and yellow cards r +) He drew some cards. After he drew 7 red cards, he gave back 2 yellow cards. His final score was -3. What was his score before he drew the 7 red cards?
*Tuesday, February 24, 2015 at 5:50pm*

**MATH**

from 6:30 am to 4:30 pm on Monday, the temperature rose 12 degreesC. From 4:30 pm on Monday to 5:45 am on Tuesday, the temperature dropped 7 degreesC. The temperature at 5:45 am on Tuesday was -2 degreesC. What was the temperature at 6:30 am on Monday? plz i need ur help this ...
*Tuesday, February 24, 2015 at 5:36pm*

**math**

How would i simplify this: (x-1)(x+2)-(x-3)^2 I keel getting -3 -11, but the right answer is 7x - 11
*Tuesday, February 24, 2015 at 5:22pm*

**math**

11/21 or 9/17. which one is greater and what is the work/common denominaters
*Tuesday, February 24, 2015 at 5:14pm*

**MATH AGAIN~Ms. Sue **

from 4:00 P.M. to 3:00 A.M., the temperature dropped 6 degrees Fahrenheit. At 3:00 A.M.,the temperature was -4 degrees F. What was the temperature at 4:00 P.M.??? Ms. Sue i trust u more plz answer this thank u
*Tuesday, February 24, 2015 at 5:05pm*

**Math - Algebra 1**

You deposit $9000 in a savings account that earns 3.6% annual interest compounded monthly. You also save $40 per month in a safe at home. Write a function C(t) = b(t) + h(t) where b(t) represents the balance of your savings account and h(t) represents the amount in your safe ...
*Tuesday, February 24, 2015 at 5:03pm*

**Math**

Which of the following makes the sentence true? 7t + 26=61 (3,5,7,9)
*Tuesday, February 24, 2015 at 4:46pm*

**MATH**

What does MORE THAN mean does it mean + or */times? a. + b. */times
*Tuesday, February 24, 2015 at 4:42pm*

**Math**

Irene counted 12 brown houses in her neighborhood. The 12 houses represent 16% of her neighborhood. How many houses are in her neighborhood.
*Tuesday, February 24, 2015 at 4:40pm*

**MATH**

What does 0 plus 0.7 minus 0.1111111118 =
*Tuesday, February 24, 2015 at 4:35pm*

**Math**

A rental car company charges a fixed fee of $15.00 plus $.12 per mile. Write an equation to find the total cost, y, for any number of miles, x
*Tuesday, February 24, 2015 at 4:30pm*

**math**

what is -33 plus y equals -39 minus +87
*Tuesday, February 24, 2015 at 4:19pm*

**Math**

Hello! I need help with this question. I know that I'm using the Law of Sines, but I'm confused on how to solve. I have to also round my answers to the nearest tenth for degrees and to the nearest hundredth for sides. Thanks! Given: A = 60 degrees a = 9 c = 10 Find: b...
*Tuesday, February 24, 2015 at 3:46pm*

**Math**

So I'm just having a complete mind block. I found my answer which is 13.72. It says to round to the nearest 10th. So I have two options here I guess haha. 13.7 or 14. I can't decide which though. Could someone please help?
*Tuesday, February 24, 2015 at 3:28pm*

**Computers**

1) What is the purpose of computer simulations? A. to provide virtual hands-on experience when actual hands-on experience is not possible*** B. to provide an online version of a printed text C. to provide clip art about the subject being studied D. to provide a real life hands...
*Tuesday, February 24, 2015 at 1:19pm*

**Math/ Compouded semiannually ?'s**

Jessica plans to purchase a car in one year at a cost of $30,000. How much should be invested in an account paying 10% compounded semiannually to have the funds needed. a. $27,210.90 b. $3,512.06 c. $24,793.50 d. $27,272.70 The Lee family plans to buy a new house in 2 years ...
*Tuesday, February 24, 2015 at 12:11pm*

**math**

An airplane travels with a speed of 145 mph in calm air. the wind is blowing with a velocity of 23 mph from N72degreesE. If the plane is headed in a direction N63W, find the magnitude of the speed and the direction of the airplane with reference to the ground. In what ...
*Tuesday, February 24, 2015 at 12:07pm*

**math**

Kim and Kent are on opposite sides of a canal, pulling a barge with tow ropes. Kim exerts a force of 50N at 20 degrees to the canal and Kent pulls at an angle of 15 degrees with just enough force so that the resultant force vector is directly along the canal. Find the number ...
*Tuesday, February 24, 2015 at 12:01pm*

**Math homework **

Alex can read 8 pages in 20 minutes. How long will it take him to read 20 pages?
*Tuesday, February 24, 2015 at 11:07am*

**math**

(1,1) and (13,3) (0,4) and (14,0) What are the coordinates for the intersection of the two lines?
*Tuesday, February 24, 2015 at 10:26am*

**math**

An oval track is made by erecting semi circles on each end of a 58 m by 116 m rectangle. Find the length of the track and the area enclosed by the track.
*Tuesday, February 24, 2015 at 7:57am*

**business math**

A local Barnes and Noble paid a $79.44 net price for each calculus textbook. The publisher offered a 20% trade discount. What was the publisher’s list price?
*Tuesday, February 24, 2015 at 6:43am*

**math**

Use the information below to write and simplify an expression to find the total weight of the medals won by the top medal-winning nations in the 2012 London Olympic Games. The three types of medals have different weights. U.S.A. Gold=46 Silver=29 Bronze=29 China Gold=38 Silver...
*Tuesday, February 24, 2015 at 5:56am*

**math**

William earns $13 an hour working at a movie theater. Last week he worked h hours at the concession stand and three times as many hours at the ticket counter. Write and simplify an expression for the amount of money William earned last week. THANK YOU!
*Tuesday, February 24, 2015 at 5:43am*

**math**

Combine like terms to get equivalent expression: 0.5(x^4 - 3)+12 ...inside parenthesis is x to the power of 4 minus 3. THANK YOU!
*Tuesday, February 24, 2015 at 5:30am*

**Math**

Why is zero not in the doamin of the logarithmic functions y= log3 x and y = log5 x?
*Tuesday, February 24, 2015 at 5:14am*

**statistics**

If np is more or equal to 5 and nq is more or equal to 5, estimate P(fewer than 6) with n = 14 and p = 0.5 by using the normal distribution as an approximation to the binomial distribution; if np < 5 or nq < 5, then state that the normal approximation is not suitable. ...
*Tuesday, February 24, 2015 at 4:35am*

**math**

hakiim invested 15000 he put part of it in a term deposit that paid 4% per annum and the remainder in a treasury bill that paing 5% per annum after one year the total interest was 690 how much did hakiim invest at each rate
*Tuesday, February 24, 2015 at 2:48am*

**math**

The ratio of Juma’s and Akinyi's earnings was 5:3. Juma’s earnings rose to shilling 8400 after an increase of 12%. Calculate the percentage increase in Akinyi’s earning given that the sum of their new earnings was shilling 14100. (b) Juma and Akinyi ...
*Tuesday, February 24, 2015 at 1:50am*

**math**

Solve the equation: 2cos2θ = 1 for 0° ≤ θ ≤ 360. 2θ = cos-1(1/2) 2θ = 60° θ= 30,210 330
*Tuesday, February 24, 2015 at 1:47am*

**math**

An angle of 1.8 radians at the center of the circle subtends an arc of length 23.4cm. Find: (a) The radius of the circle (b) The area of the sector enclosed by the arc and the radii.
*Tuesday, February 24, 2015 at 1:31am*

**math**

A solid metal sphere of radius 4.2cm was melted and molten material used to make a cube. Find to 3 significant figures the length of the side of the cube.
*Tuesday, February 24, 2015 at 1:29am*

**math**

9-n/5=19
*Tuesday, February 24, 2015 at 12:47am*

**math**

Is this right 6(5y-4) 30y-24 Need help with this one -3+2(6z-3+4)
*Tuesday, February 24, 2015 at 12:44am*

**math**

I have to write an equality....plz help Three friends washed cars together and shared their total earnings equally. They earned at least $150 one weekend. How much did each friend earn!
*Tuesday, February 24, 2015 at 12:37am*

**math**

A hiking club charges an initial fee of $60 and then $12 for each hiking trip. Write an expression to model the total cost and then evaluate the expression for 4 hikes.
*Tuesday, February 24, 2015 at 12:26am*

**Math**

2+2=? Help?
*Tuesday, February 24, 2015 at 12:12am*

**math**

you take a print measuring 14cm by 10cm from an old family photo album into a copy shop. what would be the measurement if the print was enlarged by a scale factor of 2.5?
*Monday, February 23, 2015 at 11:34pm*

**Vectors Math**

Use a specific example to prove that the cross product is also not associative. That is, use three specific vectors in 3-sapce to show that a×( b × c ) is not equal to ( a ×b ) × c.
*Monday, February 23, 2015 at 11:20pm*

**MATH**

what is the rule of the function table if the input is 1,8,5,10 and the output is 4,6,1,5
*Monday, February 23, 2015 at 11:12pm*

**Finite Math**

The price of a new car is $36,000. Assume that an individual makes a down payment of 25% toward the purchase of the car and secures financing for the balance at the rate of 10%/year compounded monthly. (Round your answers to the nearest cent.) What monthly payment will she be ...
*Monday, February 23, 2015 at 11:09pm*

**math**

Tanya guessed there were 65 beans in a jar. Her guess was off by 20. Bryan guessed there were 35 beans in the jar. He was off by 10. How many beans are in the jar? And how would I show my work?
*Monday, February 23, 2015 at 10:55pm*

**Math**

How many years old is a person if her age now is equal to her age in 3 years x 3, less 3 times her age 3 years ago?
*Monday, February 23, 2015 at 10:45pm*

**3rd grade math**

There are 24 students in Ms. Messing's class. Six more students walk to school than ride their bikes. The number of students that ride their bikes is the same as the number of students that are driven to school. How many students walk to school? Please only use addition ...
*Monday, February 23, 2015 at 10:27pm*

**Math**

Hi, so I am supposed to calculate the volum of my prism as if it were a prism. I know I'm supposed to to do Volum=1/3* area of the base* height. But I get confused can you please help me. These are the measurements of my prism. Length=5cm Width=17cm Height=22cm. Please ...
*Monday, February 23, 2015 at 10:23pm*

**Math**

Felisha worked at the library for three months.she earned $4,500.00 and must pay total of 15% in taxes,which includes federal withholding, Medicare, and social security taxes.What is her net pay? Show or tell how you got the answer A) $3,825.00 B) $3,875.00 C) $4,825.00 D) $5,...
*Monday, February 23, 2015 at 10:22pm*

**Math**

A girl's club is selling hats to raise money. They ordered 500 hats that cost$5.15 each. They will sell the hats for $18.50 each. All the hats were sold. How do you find the amount of money the club made after expenses?
*Monday, February 23, 2015 at 10:12pm*

**Math**

Native Americans made baskets like this one in the early 1900's. If two sides of the triangle shown on the basket measure 1/4 in., and the third side measures 3/8 in., what is the perimeter of the triangle?
*Monday, February 23, 2015 at 9:59pm*

**5th grade math**

Marcus is building a rectangular box for his kitten to sleep in. He wants the area of the bottom of the box to be 360 square inches and the length of one side to be 1 3/5 the length of the other side. What should the dimensions of the bottom of the bed be?
*Monday, February 23, 2015 at 9:49pm*

**Math**

Draw a parallelogram with an area of 48 sq cm with a decimal factor oft the length ,width or both
*Monday, February 23, 2015 at 9:41pm*

**math **

hahn had $25 left in her purse after shopping and spending 20%of her money.how much did she leave to go shopping
*Monday, February 23, 2015 at 9:27pm*

**math**

jackie kept $75 out of the $80 she found on the streets of nyc what percentage did she use
*Monday, February 23, 2015 at 9:22pm*

**math**

A rectangular park has an area of 2/3 square mile. The length of the park is 2 2/3 the width of the park. What is the width of the park? I am confused on how to do this. I know lw=a A= 2/3 sq mi l= 2 2/3w but I do not understand how to find the width :/
*Monday, February 23, 2015 at 9:01pm*

**math**

ramon spent 60% of his $437 paycheck gifts for his friends .how much did he spend
*Monday, February 23, 2015 at 8:55pm*

**math**

Given that log y = log (10^n) solve for n.
*Monday, February 23, 2015 at 8:52pm*

**math **

17 is what percent of 51
*Monday, February 23, 2015 at 8:49pm*

**math **

22 is what percent of 88
*Monday, February 23, 2015 at 8:48pm*

**math **

what is 42% of 87
*Monday, February 23, 2015 at 8:47pm*

**math **

peter spent 20% of his money. he has $40 left in his pocket . how much did he go out with.
*Monday, February 23, 2015 at 8:37pm*

**math**

Todd had $44 in his wallet. he spent 30% of his money. how much money does he have left
*Monday, February 23, 2015 at 8:34pm*

**Math**

Thank you Steve, sorry for the confusion. This is a chart with x's in the numbers (like a bin). There aren't any x's in 5 or 7. Would I exclude them and only use, 0, 1, 2, 3, 4, 6, and 8? Then my median would be 3. Correct? Thanks
*Monday, February 23, 2015 at 8:21pm*

**math**

How can i simplify this furthur: 5x(x-3)/(x-1)(5x-15)
*Monday, February 23, 2015 at 8:20pm*

**math**

sal spent $6 out of $12. what percent of his money did he use
*Monday, February 23, 2015 at 8:17pm*

**Math**

I have a table with x and y. x = 0, 1, 2, and 3. y=2xsquared. My answers are 0 = 0, 1 = 4, 2 = 16, and 3 = 36. Am I right? Thanks.
*Monday, February 23, 2015 at 8:04pm*

**Math**

divide $8.91 by 6 and round the quotient to the nearest cent.
*Monday, February 23, 2015 at 7:46pm*

**Math**

I have to find the median of 0, 1, 2, 3, 4, 5, 6, 7, 8. There is no data in 5 or 7. Would the median still be 4? Thanks for your help
*Monday, February 23, 2015 at 7:39pm*

**Math**

If 8 students eat apples and 12 students eat bananas, how many students eat apples or bananas?
*Monday, February 23, 2015 at 7:34pm*

**Math**

A store has 21 bikes and scooters. If there are a total of 54 wheels, how many of each are there?
*Monday, February 23, 2015 at 7:18pm*

**Math**

If Zachary takes 3 steps for every 2 steps Richie takes how nany steps will Zachary take if Richie takes 18 steps
*Monday, February 23, 2015 at 7:06pm*

**math concepts**

Matthew sits at his desk unable to figure out the answer to a division problem. He reaches into his desk and pulls out a calculator. What is the correct response for Matthew's teacher to have? A. "Put that calculator away, you can't cheat on your work." B. &...
*Monday, February 23, 2015 at 6:59pm*

**Math 222**

Please help me solve and understand this.**MY PLUS AND EQUAL KEY IS NOT WORKING** F equals mv^2/r
*Monday, February 23, 2015 at 6:54pm*

**Math**

Eric and frank want to equally share 3/4
*Monday, February 23, 2015 at 6:46pm*

**Math**

Which of the following is the measure of an acute angle? A. 180 degrees B. 135 degrees C. 90 degrees D. 28 degrees**** It's D right?
*Monday, February 23, 2015 at 6:34pm*

**math**

Juanita wants to give bags of stickers to her friends. she wants to give the same number of stickers to each friend. she's not sure if she needs 4 bags or 6 bags of stickers. How many stickers could she buy so there are no stickers left over.
*Monday, February 23, 2015 at 6:32pm*

**Math**

Which of the following is a measure of an obtuse angle? A. 40 degrees B. 100 degrees C. 90 degrees*** D. 180 degrees I am most certain it is C?
*Monday, February 23, 2015 at 6:25pm*

**Math**

What type of angle do construction workers use when building to make sure the walls and floors of a building are perpendicular? A. acute B. obtuse C. right D. straight*** I think it is D
*Monday, February 23, 2015 at 6:22pm*

**math concepts**

Sarah understands that if there are 11 ones, the first 10 move over to the tens column as one unit (i.e., one group of 10). What concept does this understanding represent? A. Renaming B. Regrouping C. Borrowing D. Place value my answer a.
*Monday, February 23, 2015 at 6:07pm*

**Math**

A rectangular prism has a width of 92 ft and a volume of 240 ft3. Find the volume of a similar prism with a width of 46 ft. Round to the nearest tenth, if necessary. 30 ft3 40 ft3 60 ft3 120 ft3 can someone please help me. I'm having trouble working this out.
*Monday, February 23, 2015 at 5:54pm*

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