Sunday

April 19, 2015

April 19, 2015

**Branches of Math**

**Recent Math Questions**

**Math**

which ordered pair is the solution of the following system of equations? y=2x-3 x+y=3 1) (1,2) 2)(2,1) 3)(3,0) 4)(3,3) MY work: y=2x-3 x+(2x-3)=3 3x-3=3 +3 +3 3x/3=6/3 x=2 x+y=3 2+y=3 -2 -2 y=1 so I got (2,1) which would be answer 2 Is this correct? Thanks for checking my work
*Friday, January 10, 2014 at 8:25pm*

**Math **

d/20+1=d/24+ 1 1/4 solve.
*Friday, January 10, 2014 at 7:53pm*

**Math**

Manuela is having mugs made for a fundraiser. The cup company will make them for $4.50 each with no set-up charges. Write and solve an equation to find how many mugs Manuela can have made for the two company prices to be the same. *** Please help :)******
*Friday, January 10, 2014 at 7:21pm*

**math**

the scale on a map is 1:2500, a pond on a map has a perimeter of 12cm, how far have you actually walked
*Friday, January 10, 2014 at 6:25pm*

**Math**

if a b and c are constants and (x+2)(x+b)= x^2+cx+6, what is c
*Friday, January 10, 2014 at 6:04pm*

**business math**

. Compute the amount of compound interest earned in 1 year for an investment of $1,000,000 with a nominal interest rate of 8% compounded quarterly. Compute the Annual Percentage Yield (APY) for the investment in the previous question. (Round APY to the nearest hundredths of a ...
*Friday, January 10, 2014 at 5:58pm*

**math**

how do I graph- y=-3x-6
*Friday, January 10, 2014 at 4:02pm*

**MATH Fractions**

Can someone help? Jeff rode his bike around the bije trail that was 1/3 of a mile long. he rode around the trail 9 times. right a fraction grader than 1 for the distance. how many miles did jeff ride?
*Friday, January 10, 2014 at 3:56pm*

**Help please math**

Solve using substitution. y = x – 2 x + y = 10 7x + 2y = - 8 8y = 4x Solve using elimination. 2x + 3y = 12 2x – y = 4 5x – 2y = - 19 2x + 3y = 0
*Friday, January 10, 2014 at 3:14pm*

**Math question**

How is an inequality different from an equation? Give a real-world scenario in where,you would write an inequality rather than an equation.
*Friday, January 10, 2014 at 2:51pm*

**Math help**

Solve using substitution 3x - 9y = 3 6x - 3y = -24 Solve using elimination y - 1/2x = 6 2x + 6y = 19
*Friday, January 10, 2014 at 2:35pm*

**math**

Y=-3x-6 Slope- x-intercept- y-intercept How do I graph this?
*Friday, January 10, 2014 at 2:31pm*

**Math**

With the stars (*) next 2 the #'s are my answers! ! ! 1) Find the percent of increase. ~ 50 to 70 20% 30% 40% ***** 50% 2) Find the percent of decrease. Round your answer to the nearest tenth of a percent where necessary. ~ 75 to 60 20% 30% 40% 50% ****** 3) Find the ...
*Friday, January 10, 2014 at 2:30pm*

**math**

If the radius of a circle is doubled, by what factor does the circumference increase?
*Friday, January 10, 2014 at 2:03pm*

**math**

If the side of a square increases by a factor of 3, by what factor does the area of the square increase?
*Friday, January 10, 2014 at 2:00pm*

**MATH**

If a square of side length x is cut in half, what is the perimeter of one of the resultant halves?
*Friday, January 10, 2014 at 1:58pm*

**MATH**

Find the interest earned by an account with $1,200 of simple interest of 4% for 3 years. Find the percent markup. Round to the nearest whole percent. store's cost: $100 selling price: $160 Find the percent of increase. 50 to 70 Find the percent of decrease. Round your ...
*Friday, January 10, 2014 at 1:58pm*

**Math**

Solve using substitution 3x - 9y = 3 6x - 3y = -24 Solve using elimination y - 1/2x = 6 2x + 6y = 19
*Friday, January 10, 2014 at 1:07pm*

**Math**

a man has a roll of 200m copper wire, he wires on room using 17m, and the next room using 83m of copper wire. How many meters is left on the roll after he does the two rooms?
*Friday, January 10, 2014 at 11:42am*

**math**

if the adverage cost per salary employee increases by $4,000 in the kitchen dept.What is the new adverage cost per employee in the dept
*Friday, January 10, 2014 at 8:07am*

**Math**

What is the out put for: Input Output 4 0 5 2 6 4 7 6 12 ? explain the rule please
*Friday, January 10, 2014 at 2:57am*

**Math**

What is the out put for: Input Output 4 0 5 2 6 4 7 6 12 ? explain the rule please
*Friday, January 10, 2014 at 2:53am*

**Math**

1/3 of the 6 dozen fruits in a fruit seller's cart are apples.If 1/4 of all the fruits are oranges and the rest of the fruits are bananas,find how many dozen of bananas are there in a fruit seller's cart?
*Friday, January 10, 2014 at 2:32am*

**math**

1.) m - 7 < 6 m < =1 m > 1 m < 13 m -13 2.) p + 12 > 9 p>21 p>3 p>-21 p>-3 3.) translate the following statement into an inequality. five less than a number is at least nine.
*Friday, January 10, 2014 at 2:09am*

**Math**

estimate each product or quotient 1/3 x 29
*Thursday, January 9, 2014 at 11:06pm*

**Math**

Can someone help me with these two problems? >.< 1. 3-x=4-3x And 2. x/4-8=16-3/4x
*Thursday, January 9, 2014 at 11:00pm*

**Math**

Express fraction 9/4 as the sum of two or three equal parts. Rewrite the problem as a multiplication equation.
*Thursday, January 9, 2014 at 10:32pm*

**Math**

I have four sides. I have two 70 degree angles and two 110 degree angles. What shape am I?
*Thursday, January 9, 2014 at 10:07pm*

**math**

a player made 20 freethrows in first half which was 80% of attemted that half. how many were attempted that half
*Thursday, January 9, 2014 at 10:05pm*

**math**

The cable supporting a ski lift rises 2 feet for each 5 feet of horizontal length. The top of the cable is fastened 1320 feet above the cable’s lowest point. Find the lengths b and c, and find the measure of the angle theta. 1320 is not the hypotenuse.
*Thursday, January 9, 2014 at 9:16pm*

**MATH**

A shirt cost $7.80. What is the price of the item after a 10% increase with sales tax? (Sales Tax: 7.5%)
*Thursday, January 9, 2014 at 8:29pm*

**math**

The points (-10,5) and (4,5) are two vertices of a rectangle. Find two other points that make a rectangle with a perimeter of 44 units.
*Thursday, January 9, 2014 at 8:22pm*

**math**

a community center has 3 tennis teams and 5 basketball teams.no one is on both teams.how many athletes are there?
*Thursday, January 9, 2014 at 8:21pm*

**Math **

Why dividing by zero is undefined?
*Thursday, January 9, 2014 at 8:05pm*

**another math**

At a distance of 34 feet from the base of a flag pole, the angle of elevation to the top of a flag is 48.6°. The flag itself is 5.1 feet tall. The angle of elevation to the bottom of the flag is 44.6°. The pole extends 1 foot above the flag. Find the height of the pole.
*Thursday, January 9, 2014 at 8:01pm*

**Math**

Write the number that is four places in front of 62 14 9 114
*Thursday, January 9, 2014 at 7:43pm*

**math**

what is th value of 4!
*Thursday, January 9, 2014 at 7:31pm*

**Math**

The cable supporting a ski lift rises 2 feet for each 5 feet of horizontal length. The top of the cable is fastened 1320 feet above the cable’s lowest point. Find the lengths b and c, and find the measure of the angle theta.
*Thursday, January 9, 2014 at 7:16pm*

**math**

nadia has taken 3 exams and her average score so far is 80.If she gets 100,a perfect score on the remaining 2 exams what will her new average be ?
*Thursday, January 9, 2014 at 7:09pm*

**4th grade math**

When the sale ended, there were 10 hardcover books, 26 paperback books and 6 CDs that didn't sell. The students decided to donate them to 3 area children hospital. If the items were divided equally, how many books and CDs will each hospital receive?
*Thursday, January 9, 2014 at 7:09pm*

**4th grade math**

Marcia collected a number of used DVDs for teh sale. There were 12 action movies, 7 comedies, and 8 animated films. she decided to put them on sale at 3 for $5. how many groups of 3 DVDs went on sale? How much money did they bring in?
*Thursday, January 9, 2014 at 7:07pm*

**math**

Melissa has 10 coins in her pocket. 2 quarters 3 dimes 4 nickel 1 penny What is the theoretical probability of pulling a quarter out of your pocket, putting it back, then pulling out a penn? My answer is 1/50 Also what is the theoretical probability of pulling a nickel out of ...
*Thursday, January 9, 2014 at 7:07pm*

**4th grade math**

there were 106 paperbacks books on sale. Benita came up with a good way to sell them. she placed 10 books each in bags and sold each bag for $2. How many bags of books did she make and how many books were left over?
*Thursday, January 9, 2014 at 7:05pm*

**4th grade math**

Bobby read 20 pages of a book one week. he read 3 times as many pages the following week. how many pages did be read in the 2 weeks
*Thursday, January 9, 2014 at 7:03pm*

**math**

betsy travel on a bus for 21 miles to school. if betsy travels for a full week (7 days). how many total miles did she travel ? Use a drawing and distributive property to solve. I got the answer iam asking for the what drawing should I show. pls help thank you
*Thursday, January 9, 2014 at 6:57pm*

**Anyone please help(math)**

Which number is a solution of the inequality? g>6.4 a. 7 b. 6 c. 6.4 d. -7 Which number is a solution of the inequality? g+3>6 a. 3 b. 4 c. -3 d. -4 Which number is a solution of the inequality? 12<y(8-y) a. 0 b. 1 c. 2 d. 3
*Thursday, January 9, 2014 at 6:56pm*

**math**

betsy travel on a bus for 21 miles to school. if betsy travels for a full week (7 days). how many total miles did she travel ? Use a drawing and distributive property to solve.
*Thursday, January 9, 2014 at 6:38pm*

**Math**

4x+16=x(x)-2x
*Thursday, January 9, 2014 at 6:36pm*

**math**

betsy travel on a bus for 21 miles to school. if betsy travels for a full week. how many total miles did she travel ? Use a drawing and distributive property to solve.
*Thursday, January 9, 2014 at 6:17pm*

**math**

is any multiple of 8 an even number or not
*Thursday, January 9, 2014 at 6:17pm*

**math**

This year's school trip is 9 times as many miles away from school as last year's trip. This year's trip is 27 miles away from school. How many miles from school was last year's trip. Write an equation and a comparison sentence to solve.
*Thursday, January 9, 2014 at 6:15pm*

**math**

betsy travel on a bus for 21 miles to school. if betsy travels for a full week. how many total miles did she travel ? Use a drawing and distributive property to solve.
*Thursday, January 9, 2014 at 6:11pm*

**math**

guess my rule with letters?help
*Thursday, January 9, 2014 at 6:08pm*

**Math**

Antoine paid $7.47 for 3 pounds of grapes. Write the cost of the grapes as a unit rate. Carla's family drove 420 miles in 8 hours. Write their average speed as a unit rate. Please help me!
*Thursday, January 9, 2014 at 6:01pm*

**Math**

How do I find the distance from one coordinate to another?
*Thursday, January 9, 2014 at 5:59pm*

**Math**

I need help with this problem. Please help 60/12 = x/8 x = ?
*Thursday, January 9, 2014 at 5:24pm*

**math**

omar has taken 4 exams and his average score so far is a 79.If he gets 100,a perfect score,on the remaining two exams,what will his new average be ?
*Thursday, January 9, 2014 at 5:10pm*

**Math help Please**

2. How do the graphs of y = 1/x and y = 3/x – 4 compare? (1 point) Compared to the graph of y = 1/x, the graph of y = 3/x – 4 is a vertical stretch by a factor of 3 and a translation of 4 units left. Compared to the graph of y = 1/x, the graph of y = 3/x – 4 is ...
*Thursday, January 9, 2014 at 5:09pm*

**Math**

What does it mean by, "The sum of three consecutive odd integers is 93."
*Thursday, January 9, 2014 at 4:36pm*

**math**

how can i make a model to solve this problem? Javia ran 8 laps around a track to run a total of 1 mile on Monday. How many laps will she need to run on Tuesday to run 3/8 of a mile?
*Thursday, January 9, 2014 at 4:06pm*

**Math**

When it says, "Paulo has a certain amount of money. If he spends six dollars, then he has 1/4 of the original amount left." So would the equation be n-6=1/4?
*Thursday, January 9, 2014 at 4:03pm*

**Math**

A woman went for a 48km drive in her car, partly in town in the country. She drove at an average of 40km/hr in town and an average speed of 50km/hr in the country. If the drive took her one hour altogether then how long did she drive in the country?
*Thursday, January 9, 2014 at 3:39pm*

**math**

a light year is the distance light travels in one year. one light year is about 5.9x10^12 mi. If it takes light 3 months to travel from one star to another, about how far apart are the stars? 5.9x10^12/12*3 I got 1.5x10^12 mi Is this correct?
*Thursday, January 9, 2014 at 2:53pm*

**math- commutative property**

My daughter had this question for Hw and wasn't sure the correct answer. the expression was (4 7/8 +3 3/4)+5 1/8 which shows another way to write the expression using only the commutative property of addition A) 4 7/8+(3 3/4 +5 1/8) B)(5 1/8 +4 7/8) +3 3/4 C) 3 3/4 +4 7/8...
*Thursday, January 9, 2014 at 1:21pm*

**Math**

A rectangle is inscribed in a semi circle of radius 2, let x represent half the length of the rectangle. Write an expression for the area of the rectangle in terms of x. Well I know area=length X width. That's about all I know what to do though
*Thursday, January 9, 2014 at 11:03am*

**Math-Algebra**

The numerator of a fraction is 3 less than the denominator. If 5 is added to the numerator and the denominator, the value of the resulting fraction becomes 3/4. What is the original fraction?
*Thursday, January 9, 2014 at 8:44am*

**Math - Algebra**

Marcus saved 20 coins consisting of 25 and 1 coins. How many of each kind does he have is the coins amount to 10.25?
*Thursday, January 9, 2014 at 8:41am*

**Math**

Alma subscribes to a website for processing pictures. The subscription is $5.95 per month and 4-by-6 inch prints are$0.19 each. How many prints does Alma purchase if the charge fir January is $15.83?
*Thursday, January 9, 2014 at 7:43am*

**Math**

Find all real numbers x such that x^2 -8>0. Write your final answer in interval notation. I really just need a starter step. I remember these questions, but I'm not sure how to start. Please help!
*Thursday, January 9, 2014 at 12:01am*

**Math**

Caitlin has a $10 gift certificate to a music store. She has chosen a number of CDs from the $7 bargain bin.If the cost of the CDs is $32 after the gift certificate is credited how many CDs did she buy?
*Wednesday, January 8, 2014 at 11:51pm*

**Math**

Help! I dont know how to find the complement of a 30 degree angle! Please help me!
*Wednesday, January 8, 2014 at 11:13pm*

**math**

MOVIE CLUB Members of a movie rental club pay $15 annual membership fee and $2 for new release movies. Non Members pay $3 for new release movies. a. Write a system of linear equations that represent this situation. b. When is it beneficial to have a membership?
*Wednesday, January 8, 2014 at 11:11pm*

**Math**

Which function rule can be used to represent the area of a triangle with a base b 8 in. longer than twice the height h in terms of the height?
*Wednesday, January 8, 2014 at 10:50pm*

**Math**

Tell whether each sequence is arithmetic. Justify your answer. If the sequence is arithmetic, write a function rule to represent it. 15. 128, 64, 32, 16... 16. 3, 3.25, 3.5, 3.75..
*Wednesday, January 8, 2014 at 10:48pm*

**Math**

Find the second, fourth and eleventh terms of sequence described by each rule. 13. A(n)=2+(n-1)(-2.5) 14. A(n)=-9+(n-1)(3) I need help please, i am bad at mathh
*Wednesday, January 8, 2014 at 10:35pm*

**Math**

The first two terms in a geometric series is 12. The sum of the first three terms of the same series is 62. Determine the first four terms of the series.
*Wednesday, January 8, 2014 at 10:24pm*

**math**

A friend opens a savings account by depositing $1000. He deposits an additional $75 into the account each month. a. What is a rule that represents the amount of money in the account as an arithmetic sequence? b. How much money is in the account after 18 months? Show your work.
*Wednesday, January 8, 2014 at 10:23pm*

**math**

A friend opens a savings account by depositing $1000. He deposits an additional $75 into the account each month. a. What is a rule that represents the amount of money in the account as an arithmetic sequence? b. How much money is in the account after 18 months? Show your work.
*Wednesday, January 8, 2014 at 10:23pm*

**Math.**

The first term of a geometric series is 4 and the sum of the first three terms of the series is 64. Find the sum of the first eight terms of the series.
*Wednesday, January 8, 2014 at 10:22pm*

**Math**

A friend opens a savings account by depositing $1000. He deposits an additional $75 into the account each month. a. What is a rule that represents the amount of money in the account as an arithmetic sequence? b. How much money is in the account after 18 months? Show your work.
*Wednesday, January 8, 2014 at 10:08pm*

**Math**

Can you simplify a4 b + a2b3 please thank you.
*Wednesday, January 8, 2014 at 9:53pm*

**Math**

An elevator starts on the 100th floor of a building. It descends 4 floors every 10 seconds. At what floor will the elevator be 60 seconds after it starts? a.) 60th floor. b.) 66th floor. c.)72nd floor. d.)76th floor. my answer is ( c ).
*Wednesday, January 8, 2014 at 9:47pm*

**Chemistry/Math**

The density of water is 1 g/cm^3. What is the mass of 7.500 liters of water reported in kilograms? I got 7.5kg. Is this correct?
*Wednesday, January 8, 2014 at 9:32pm*

**Business Math**

What is the compound interest on the previous investment?
*Wednesday, January 8, 2014 at 9:20pm*

**Math problem**

You have $60.00 in your wallet and want to buy some new CDs. If the CDs are $11.00 each, what number of CDs, x, can you buy? Write and solve an inequality. Can you explain this problem step by step? Trying to help my cousin solve this....:/
*Wednesday, January 8, 2014 at 9:09pm*

**math**

2 ones, 48 tenths and 5 hundreds =
*Wednesday, January 8, 2014 at 9:08pm*

**Math**

Write an equation in slope-intercept form, point-slope, or standard form for the line with the given information. Explain why you chose the form you used. a. Passes through (-1, 4) and (-5, 2)
*Wednesday, January 8, 2014 at 8:54pm*

**MATH**

5.7 + 33/100 + 61/1000 =
*Wednesday, January 8, 2014 at 8:53pm*

**Math **

Equation that represents a rotation of the linear parent function??
*Wednesday, January 8, 2014 at 8:41pm*

**Math**

The base of a parallelogram is 10 inches.The height is 2 inches more than half the base.Find the area.
*Wednesday, January 8, 2014 at 8:38pm*

**math **

Can someone check my answers: write out each problem with repeated addition. 3*0= 0*13= 20*0= I got 0+0+0 0+0+0+0+0+0+0+0+0+0+0+0+0 0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0
*Wednesday, January 8, 2014 at 8:37pm*

**Math**

What is the slope and y- intercept for PARENT LINEAR FUNCTION?
*Wednesday, January 8, 2014 at 8:37pm*

**Math help**

Write the slope intercept form of the equation of the given points. Through: (-4,3) and (-4,1) Would it be y=3??
*Wednesday, January 8, 2014 at 8:33pm*

**math**

2 ones, 48 tenths and 5 hundreds =
*Wednesday, January 8, 2014 at 8:31pm*

**Math urgent! :( plz help**

3. Which of the following equations has an infinite number of solutions? 3x - 3 + -4x 2y+ 4 -y = 16 7x + 5 = 4x + 5 + 3x 6y -2 =2 (y-1) Write the inequality and solve for the following problem: The result of 6 subtracted from a number n is at least 2 n - 2>6; n > 8 n-6&...
*Wednesday, January 8, 2014 at 7:55pm*

**5th grade math**

A coin is tossed twice. What is the probability of tossing 2 tails? What is the probability of tossing 1 tail & 1 head? can you please show me how to do this problem?
*Wednesday, January 8, 2014 at 7:50pm*

**Math**

Me, again... Please help me. Thank you. Assume a plane is flying directly north at 200 mph, but there is a wind blowing west at 23 mph. Part I: Express both the velocity of the plane and the velocity of the wind as vectors, using proper notation to represent each direction of ...
*Wednesday, January 8, 2014 at 7:48pm*

**Math**

Please help me.... Two cars are starting from positions that are 20 miles apart. They are both headed for the same intersection, as depicted in the diagram below. Car A is traveling at 30 mph, and Car B is traveling at 45 mph. Which car will reach the intersection first? 1. ...
*Wednesday, January 8, 2014 at 7:23pm*

**MATH**

Find the exact value of sin(1/2arcsin(-7/25))
*Wednesday, January 8, 2014 at 7:09pm*

**math**

5x8=(5x2)+(5x_)=40
*Wednesday, January 8, 2014 at 7:09pm*