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March 27, 2015

March 27, 2015

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**math**

Suppose you are managing an account in which you deposit Rs. 20,000 at the end of each year for 20 years. How much amount you have accumulated with the assumption that you earn 5% interest compounded annually.
*Saturday, December 7, 2013 at 5:56am*

**math**

Ali needs to borrow Rs 500,000 for three years. Which of the following option is more beneficial for him? (i) 3.2 % simple interest rate (ii) 1.6% compound interest rate when it is compounded semi annually
*Saturday, December 7, 2013 at 5:54am*

**Math**

Solve this substitution: 2x-5x=-8 -3x-2y=-26
*Saturday, December 7, 2013 at 12:15am*

**Math :)**

In a bag of 10 marbles, there are 5 blue marbles, 3 red marbles, and 2 white marbles. Complete the probability distribution table for drawing 1 marble out of the bag. Draw a: Probability Blue marble 5/10 Red marble 3/10 White marble 2/10 Total: 10 Am I doing this right? Thanks...
*Friday, December 6, 2013 at 7:43pm*

**Math**

I Need Help With Two Questions The First One Is Find The Distance Between Riverside And Milton If They Are 12 Cm Apart On A Map With A Scale Of 4 cm : 21 Km And The Second One Is Oak Grove And Salem Are 87 Mi From Each Other . How Far Apart Would The Cities Be On A Map That ...
*Friday, December 6, 2013 at 7:31pm*

**math**

Forces are applied to two ropes which are attached to the bumper of a stalled car. If F1 = 100 lbs at an angle of θ1 = 58 degrees, find the necessary magnitude and direction of force F2 so that the resultant force is 190 lbs in the direction shown.
*Friday, December 6, 2013 at 6:51pm*

**math**

Two squirrels are sitting on a rope as shown. The tension in segment BD is TBD = 6.3 lb at an angle of ϕ = 47 degrees. The tension in segment AB is TAB = 5.229 lb. Find the weight of the squirrel at B and the angle α.
*Friday, December 6, 2013 at 6:51pm*

**math**

A farmer's tractor has gotten stuck in a muddy pasture. To try to free the tractor, the farmer ties a rope to a tree and the front of her tractor, then pulls sideways in the middle of the rope with a force of F = 510 N. Angles of θ = 5 degrees are formed as shown. ...
*Friday, December 6, 2013 at 6:50pm*

**Math**

12. In a triangle ABC, AC = 36, BC = 48, and the medians BD and AE to sides AC and BC, respectively, are perpendicular. Find AB.
*Friday, December 6, 2013 at 6:36pm*

**Math**

In triangle MABC, D bisects side BC, G bisects side AB, and the points E and F trisect side AC. What is the area of the shaded polygon, if the area of MABC is 108?
*Friday, December 6, 2013 at 6:35pm*

**Math**

A bicycle has a 100 cm diameter wheel. If you ride on and around a circle with a 10 km diameter 12 times, how many revolutions does the wheel make?
*Friday, December 6, 2013 at 6:32pm*

**Math**

A 5 inch by 8 inch rectangle is enlarged to a similar rectangle whose smallest side measures 9 inches. What is the length in inches of the diagonal of the enlarged rectangle?
*Friday, December 6, 2013 at 6:31pm*

**Math**

What is the maximum number of points of intersection of two different lines and three different circles in the same plane?
*Friday, December 6, 2013 at 6:30pm*

**i need help math**

Ines became the manager of an electronics store. She decided to provide customers with a great holiday deal. A customer will be able to purchase 3 big screen televisions at the following price, the first one at the full price of $750, the second one will be discounted 45% and ...
*Friday, December 6, 2013 at 5:49pm*

**Math**

A builder has 8 lots available for sale. · Six lots are greater than one acre. · Two lots are less than one acre. What is the probability that the next three lots sold will be greater than one acre?
*Friday, December 6, 2013 at 5:13pm*

**Math**

In a shipment of alarm clocks, the probability that one alarm clock is defective is 0.04. Charlie selects three alarm clocks at random. If he puts each clock back with the rest of the shipment before selecting the next one, what is the probability that all three alarm clocks ...
*Friday, December 6, 2013 at 5:00pm*

**Math**

This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS). Please help! I'm so confused.
*Friday, December 6, 2013 at 2:41pm*

**math**

The probability of not picking a purple marble out of a bag of marbles is 2/5, if 2 purple marbles are taken out of the bag, reducing the number of purple marbles to 4, what will the new probability of picking a purple marble be?
*Friday, December 6, 2013 at 1:25pm*

**math**

has a vertex of (0,2) and points (1,8)find a,b,c
*Friday, December 6, 2013 at 1:13pm*

**math**

The length of a rectangle is three times its width. If the area of the rectangle is 48, what is its length?
*Friday, December 6, 2013 at 1:10pm*

**math**

If the circumference of a circle is 16 pi, what is its area ?
*Friday, December 6, 2013 at 1:00pm*

**math**

In triangle XYZ, the measure of angle Y is twice the measure of angle X, and the measure of angle Z is three times the measure of angle X, what is the measure of angle Y ?
*Friday, December 6, 2013 at 12:47pm*

**math**

if the point (3/5,4/5) corresponds to an angle È in the unit circle, what is tan È?
*Friday, December 6, 2013 at 11:11am*

**math**

Experimentally it is found that a 6 kg weight stretches a certain spring 6 cm. If the weight is pulled 4 cm below the equilibrium position and released: a. Set up the differential equation and associated conditions describing the motion. b. Find the position of the weight as a...
*Friday, December 6, 2013 at 11:11am*

**math**

Determne the number of days of the loan. Loan Date is Oct 20. Due Date is Dec 18. Whats the number of Days?
*Friday, December 6, 2013 at 7:53am*

**Business Math**

Principal is $1700, Rate is 12%, Days 33. What is the exact interest?
*Friday, December 6, 2013 at 7:50am*

**Math**

Recall that the equation for the horizontal distance h in feet of a projectile with initial velocity v0 and initial angle theta is given by h=v0^2/16 sin theta cos theta . a. Assume the initial velocity is 60 ft/second. What initial angle will you need to ensure that the ...
*Friday, December 6, 2013 at 1:45am*

**Math**

If I graph (-2,-1) and (1,2) on a graph, would I have y = x + 1 as the equation in slope-intercept form?
*Friday, December 6, 2013 at 1:03am*

**math**

In the addition problem at the bottom, the sum of the two digits represented by B and C is ?. Each time the same letter appears it represents the same digit) 2BA +C6D____ 8AD
*Thursday, December 5, 2013 at 10:18pm*

**math**

Sam needs 15 dozen gingerbread cookies. he bakes 2 dozen the first day, 4 dozens the next day, 6 dozens the day after that and this pattern continues. How many days does it take Sam to get his 15 gingerbread cookies if half of each batch gets eaten each night by his family and...
*Thursday, December 5, 2013 at 10:14pm*

**math**

In the addition problem at the bottom, the sum of the two digits represented by B and C is ?. Each time the same letter appears it represents the same digit.) help
*Thursday, December 5, 2013 at 10:10pm*

**math**

a number machine takes any number put into it, multiplies it by 3 and then subtracts 2. reuben put a number into the machine. he took the new number that came out and put that number back into the machine. He took the new number that came out and put that back into the machine...
*Thursday, December 5, 2013 at 10:06pm*

**math question grade 8!!**

shelby wants to paint the walls and ceiling of a rectangular room. (height:2.6cm, width:4.8cm, length:6.8cm) type of paint size of paint can cost wall paint 4L $24.95 1L $7.99 ceiling paint 4L $32.95 (one litre of paint covers 9.5 m) a) what is the least amount of paint shelby...
*Thursday, December 5, 2013 at 9:38pm*

**Math - Calculus I**

Optimization Problem: Find the dimensions of the right circular cylinder of greatest volume inscribed in a right circular cone of radius 10" and height 24"
*Thursday, December 5, 2013 at 9:36pm*

**Math**

It is estimated that are 21 deaths for every 10 million people who use airplanes. A company that sells flight insurance provides 100,000 in case of death in a plane crash. A policy can be purchased for $1. Calculate the expected value and thereby determine how much the ...
*Thursday, December 5, 2013 at 9:19pm*

**Math**

What is equivalent percent of 2/6? . What is equivalent percent of 4/6?
*Thursday, December 5, 2013 at 9:05pm*

**Math**

Find the next three values in the following sequence of numbers. -1,0,1,0,1,2,3,6,11,20,37
*Thursday, December 5, 2013 at 9:01pm*

**Math **

Find the greatest ten digit positive multiple of 12 using each digit once and only once .
*Thursday, December 5, 2013 at 9:00pm*

**Math**

Find six consecutive multiples of 6 whose sum is the least common multiple of 13 and 18.
*Thursday, December 5, 2013 at 8:58pm*

**math **

number sense what division sentence means the same as the following subtraction sentences? 12-4=8 8-4=4 4-4=0
*Thursday, December 5, 2013 at 8:44pm*

**Math**

What division sentence means the same as the following subtraction sentences? 12- 4 = 8 8-4=4 4-4=0
*Thursday, December 5, 2013 at 8:33pm*

**Math >.<**

Please check my answers! A(A box contains 2 yellow,3 red,2 blue,3 purple, and 4 pink marbles.Once a marble is selected, it is {{not}} replaced. Find each probability. 1.P(two purple marbles) my answer~ 1/91 2. P(two yellow marbles) my answer~ 2/4 or 1/7 These next ones I need...
*Thursday, December 5, 2013 at 8:12pm*

**Math-Trig**

1. To avoid a steep descent, an airplane flying at 10 000 m starts its descent 60km away from the airport. For the angle of descent to be constant, at what angle should the plane descend? 2. A flagpole that is 20m high casts a shadow that is 18m long. What is the angle of ...
*Thursday, December 5, 2013 at 8:09pm*

**6th grade math**

Can you check the following problems related to inequalities? 1) Sue has more than 5 cookies. Ans: x > 5 2) The temperature was less than 88 degrees last night. Ans: x < 88 3) I made $75 or more dollars babysitting. Ans: x >= 75? 4) I need to make a 70 or more on my ...
*Thursday, December 5, 2013 at 7:45pm*

**Math - Trig**

1. When you look down from the top of a building at an angle of 63degrees, you will see a man reading a newspaper. If the building is 50m high, how far is the man from the building? 2. A plane takes off at an angle of 15deg20'. How high will it have risen after it has ...
*Thursday, December 5, 2013 at 7:31pm*

**Math**

can somebody tutor me
*Thursday, December 5, 2013 at 7:22pm*

**Math Reasonableness**

Brendan bought 14 used records at a garage sale. He paid $0.75 for each record. How much did he play?
*Thursday, December 5, 2013 at 7:04pm*

**math**

"It takes Juwan exactly 35 minutes by car to get to his grandmother's. The nearest parking area is 4 minute walk from her apartment. One week he visited more often. He realized that he spent 5 hours and 12 minutes traveling to her apartment and then back home. How ...
*Thursday, December 5, 2013 at 6:48pm*

**Math**

Determine, with justi cation, the value of the remainder when 2^314 is divided by 91. (Hint: 91 = 13 * 7.)
*Thursday, December 5, 2013 at 6:10pm*

**Math**

Write and solve an equation to answer the question How many miles did Lacey walk if Chris collected $450 in pledges? 18(x)=450 x=25 How many miles did Chris walk 25
*Thursday, December 5, 2013 at 5:55pm*

**math**

Angela scored in the 90th percentile of her class math test. If 27 students scored the same as or lower than she did, how many students are in the class?
*Thursday, December 5, 2013 at 5:52pm*

**math**

In a game played with 50 letter tiles, 21 of the tiles are vowels. If a tile is drawn at random, what is the probability that it is a consonant.
*Thursday, December 5, 2013 at 5:20pm*

**Math**

After getting approval to do additional fundraising Chris and Lacey decided to participate in a walkathon to raise money for the shelter. Chris walked 5 miles less than twice the number of miles that Lacey walked. The students will collect $18 in pledges for every mile that ...
*Thursday, December 5, 2013 at 5:18pm*

**math**

A recipe for a fruit shake calls for 5 parts milk, 3 parts banana puree, and 2 parts strawberry juice. Find the quantity of each ingredient necessary to make an 8 ounce shake.
*Thursday, December 5, 2013 at 5:15pm*

**math**

A laptop that originally cost $1,200 is on sale for $950. Find the discount rate.
*Thursday, December 5, 2013 at 5:12pm*

**Ratios Math (Please Help)**

Please Help, And can you explain how you got the answer? 1. Write the ratio 15:25 as a fraction in simplest form. A) 3/5 B) 15/25 C) 30/50 D) 1/3 2.Which ratio is equivalent to 3/7? A) 6/10 B) 9/21 C) 12/35 D) 7/3
*Thursday, December 5, 2013 at 4:43pm*

**math**

10 to the 50th power
*Thursday, December 5, 2013 at 4:35pm*

**math ms sue please help, PLEASE!!!!**

the jones' are planning a vacation. the total cost is $2500. they are able to save 1/5 of the cost each month. how much will they save in three months?
*Thursday, December 5, 2013 at 4:14pm*

**Math work problem**

If a disease is transmitted from 1 individual to 2 more each week, and we began with 2 individuals being ill, how many weeks until at least 30 people are infected? Need help figuring this out Thanks!
*Thursday, December 5, 2013 at 4:07pm*

**math 4 grade i don't know i need help**

"Crazy John decided to pull a prank on his father and fill up his car with cotton balls making it seem like it was full of snow. He bought 48 packs of cotton balls for $3.65 each. If he used his CVS card and received 30% off his entire purchase and had to pay 8% tax. How...
*Thursday, December 5, 2013 at 3:58pm*

**Business Math**

Juan Ramirez sells suits in a major department store on weekends. He earns a commission of 5 percent on the first ten suits, and if he sells more than ten, he earns an additional 3 percent on the additional suits. Last weekend Juan sold thirteen $250.00 suits. What was his ...
*Thursday, December 5, 2013 at 1:30pm*

**Math**

How do you use a "quick picture" to find 5 x 2.7.
*Thursday, December 5, 2013 at 1:25pm*

**math**

how do I rename 10 as a fraction
*Thursday, December 5, 2013 at 11:32am*

**math words problem**

Williamston Daily is a new daily newspaper. When they first started printing three years ago they had 5600 home delivery subscribers. The number of subscribers increases by 71 every month. Write a linear model that represents the number of subscribers, B, for the number of ...
*Thursday, December 5, 2013 at 10:43am*

**Math**

(1) 4/5 Multipled by 5/7 in simplest form. My answer is 1.9 dont really know if its write show work. (2) -1 1/6 divided by 2/9= -5 1/4 need help showing work. (3)-6 2/5 divided by (-2 2/7) = 2 4/5 (4) 2 2/3 divided by (-4 1/4) = -11 1/3 i nedd help showing my work
*Thursday, December 5, 2013 at 8:22am*

**Math**

How do I find the excluded value for m^2-8+16/ 5m^2+ m
*Thursday, December 5, 2013 at 12:44am*

**math**

Two common names for streets are First Street and Main Street, with 12485 streets bearing one of these names. There are 2105 more streets named First Street than Main Street. How many streets bear each name?
*Wednesday, December 4, 2013 at 11:30pm*

**math**

Jeff uses 3 fifth size strips to model 3/5. He wants to use tenth size strips to model equivalent fraction. How many tenth size strips will he need? my answer is 6/10
*Wednesday, December 4, 2013 at 10:40pm*

**math**

Which equation describes the line that contains the points (-5, 2) and (3, 7)?
*Wednesday, December 4, 2013 at 10:33pm*

**math**

a park has 4 hiking trails. Trails A and B go from the lodge to the dock. Trail A is 1/2 mile long, and Trail B is 2/3 mile long. Trails C and D go from the dock to the park entrance. Trail C is 1/4 mile long and trail D is 1/3 mile long. Draw a picture of the possible trails...
*Wednesday, December 4, 2013 at 9:47pm*

**Math**

A department store sold 63 shirts one day. All short-sleeved shirts cost $15.00 each and all long-sleeved shirts cost $22.00 each. Total receipts for the day were $1,134.00 . How many of each kind of shirt were sold?
*Wednesday, December 4, 2013 at 9:25pm*

**math**

A cookie recipe calls for 2 1/4 cups of flour. If Gustavo wants to make 1 1/2 times the recipe, how much flour does he need? 2 1/4 + 1 1/2 9/4 + 3/2 * 2 9/4 + 6/4 = 15/4 = 3 3/4 Is correct?
*Wednesday, December 4, 2013 at 9:20pm*

**math**

a park has 4 hiking trails. Trails A and B go from the lodge to the dock. Trail A is 1/2 mile long, and Trail B is 2/3 mile long. Trails C and D go from the dock to the park entrance. Trail C is 1/4 mile long and trail D is 1/3 mile long. Draw a picture of the possible trails...
*Wednesday, December 4, 2013 at 8:56pm*

**math**

How tall is a stack of 16 nickels
*Wednesday, December 4, 2013 at 8:50pm*

**Math (PreCalculus)**

An earthquake was recorded which was 1584893 times more powerful than a reference level zero earthquake. What is the magnitude of this earthquake on the Richter scale? Intensity on the Richter scale is log(I/Io). Correct Answer is 6.268. But how to get that?
*Wednesday, December 4, 2013 at 8:39pm*

**math**

How many 1/4 pound burgers can be made from 2 1/2 pounds of beef?
*Wednesday, December 4, 2013 at 8:10pm*

**math**

Henry wishes to accumulate $4,500 in 2 years for a long vacation. Find the sinking fund payment he would need to make each month, at 6% compounded monthly
*Wednesday, December 4, 2013 at 8:06pm*

**math**

The cost of refreshments (in dollars) is a function, h, of the number of people served, n. If h(n)=100/9n, find the number of dollars it would cost for refreshments for 27 people.
*Wednesday, December 4, 2013 at 7:52pm*

**math **

Denny has 7/8 feet of lumber. To make one molding he needs 1/3 feet of lumber. How many moldings can he make?
*Wednesday, December 4, 2013 at 7:46pm*

**Math**

An earthquake was recorded which was 1584893 times more powerful than a reference level zero earthquake. What is the magnitude of this earthquake on the Richter scale? Intensity on the Richter scale is log(I/Io).
*Wednesday, December 4, 2013 at 7:37pm*

**Math**

I need help understanding inequalities - like a+2<-3 or d-1.9<-8.7
*Wednesday, December 4, 2013 at 7:32pm*

**math**

a receipe for a loaf of banana bread calls for 2 3/5 pds of bananas. how many pds of bananas are needed to make 4 loaves of banana bfread
*Wednesday, December 4, 2013 at 7:32pm*

**math**

maddy wrote 2/3 of her 300 word essay on Monday and 1/4 on Tuesday. What fraction of her essay has she completed?
*Wednesday, December 4, 2013 at 7:32pm*

**math**

What are the answers to the middle school math with pizzazz book e page 29?
*Wednesday, December 4, 2013 at 7:26pm*

**math mixed number**

One inch equals 2.45 cm. Express the number of centimeters in an inch as a mixed number 2.54/1×100/100 2 54/100
*Wednesday, December 4, 2013 at 7:24pm*

**math decimal**

write each fraction or mixed number as a decimal - 56/60 = .93 90/200 = 0.45
*Wednesday, December 4, 2013 at 7:13pm*

**Math**

If the L.A. Dodgers win about 21 games a month, about how many games would they win after three months?
*Wednesday, December 4, 2013 at 7:00pm*

**Math**

Find the equation of the curve that joins the following points. Hint: Use common differences. a. The zeros of the function are 3,-1,-5. The y-intercept is 15. Find the function. b. (1,1), (0,1), (2,-5), (-1,-5)
*Wednesday, December 4, 2013 at 6:45pm*

**Math**

2x-5y=3 and -4x+10=-6 is there a solution. Use any method to solve if possible
*Wednesday, December 4, 2013 at 6:41pm*

**Math check**

write the decimal as a fraction or a mixed number in simplest form 5.705 5.705/1× 1000/1000 5 705/1000
*Wednesday, December 4, 2013 at 6:36pm*

**sinking fund math**

in order to invest 236,281.61 at age 65 you need to start saving at the age of 25 How much money would we need to put away monthly into an ordinary annuity that earns 12% compounded monthly in order to get to our goal?
*Wednesday, December 4, 2013 at 6:32pm*

**Math check**

write the decimal as a fraction or a mixed number in simplest form 2.67 2.67/1× 100/100 = 267/100 267/100 = 2 67/100?
*Wednesday, December 4, 2013 at 6:25pm*

**math**

If you were moving at a speed of 0.00025 kilometers per hour, what is your speed in meters per minute?
*Wednesday, December 4, 2013 at 6:01pm*

**Math**

Ricardo spends $3.50 for lunch each day. Write and solve an equation to find how long it takes him to spend $21.00 3.50x=21.00 3.50(6)=21.00 6. A spiral toy that can bounce down a flight of stairs is made from 80 feet of wire. Write and solve an equation to find how many of ...
*Wednesday, December 4, 2013 at 5:57pm*

**Math**

3. Kay and SImon bought mugs at the gift shop. Simon bought 6 more mugs than Kay. Together they bought 32 mugs. Write an expression for each of them. Kay: x Simon: x + 6 Use an equation to find the number of mugs Kay bought and the number of mugs Simon bought x+6+x=32 ^combine...
*Wednesday, December 4, 2013 at 5:50pm*

**Math**

1. Lucita works at a fitness center and earns $5.50. per hour. She worked 3 hours on Friday and x hours on Saturday. Write an expression to represent her total wages earned. 5.50(3)+5.50x 2. You and your friend spend a total of $15 on lunch. Your friend's lunch cost $3 ...
*Wednesday, December 4, 2013 at 5:45pm*

**Math**

What is the slope and y intercept of the parent linear function? Is it just x and y?
*Wednesday, December 4, 2013 at 5:42pm*

**Math**

F(x)= -2x^2-4x+5
*Wednesday, December 4, 2013 at 5:40pm*

**Math**

Henry is building a front door. The height of the door is one foot more than twice its width. If the door is seven feet high, what is its width? Am I suppose to use proportions
*Wednesday, December 4, 2013 at 5:32pm*

**math not sure which formula to use**

Let’s suppose that we wish for an annuity to be set up so that we can take out $6000 every quarter for 15 years and this annuity will get 6% interest compounded quarterly...how much must we invest today for this to happen?
*Wednesday, December 4, 2013 at 5:22pm*

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