Sunday

May 24, 2015

May 24, 2015

**Math**

3.Josh has a huge marble collection. He counts 280 marbles that are red, and he estimates that this is about 10% of his collection. A.Write and solve a proportion to estimate the total number of marbles Josh has.
*Thursday, April 16, 2015 at 9:07pm*

**Math**

Ian gets $9 for each hour he works and $10for each day he works. To find out how much he makes in a day, he made the equation y=9x+10x, where x is the number of hours he works. Explain why Ian's equation will not tell him how much he makes in a day.
*Thursday, April 16, 2015 at 9:03pm*

**Math**

Determine whether this sequence is arithmetic or geometric. Find the next three terms. 81, 27, 9, 3, . . . A. arithmetic, 0, –3, –6 B. geometric, 0, –3, –6 C. geometric, 1,1/3 , 1/9 D. The sequence is neither geometric nor arithmetic. Is the answer C? Thank...
*Thursday, April 16, 2015 at 8:58pm*

**Math **

Mia took a test with 60 multiple-choice questions. Her teacher told her she got 88% correct. A.Write and solve a proportion to figure out how many questions she got correct.
*Thursday, April 16, 2015 at 8:45pm*

**math word problem**

You are in a car. The car begins your journey by traveling 3 miles south in a straight path. The car then travels 9 miles east in a straight path and then turns and travels another 9 miles south in a straight path to end the journey. What is the straight-line distance between ...
*Thursday, April 16, 2015 at 8:30pm*

**Math**

Determine whether each sequence is arithmetic or geometric. Find the next three terms. -4,8,-16,32... A. Arithmetic, 64,128,256 B. Geometric, -64,128,-256 C. Geometric, -48,64,-80 D. The sequence is neither arithmetic nor geometric sequence. B? Thank you
*Thursday, April 16, 2015 at 8:23pm*

**math**

If you take 13 boxes to postoffice and each weigh 2/3 of pound what is total weight
*Thursday, April 16, 2015 at 8:20pm*

**Math**

1.A restaurant surveys 60 of its customers about their new menu. 48 of the customers that take the survey prefer the new menu. A.Which value is unknown in this problem: the part, percent, or whole? B.Write and solve the proportion to find the percent of the customers that ...
*Thursday, April 16, 2015 at 8:16pm*

**4th grade math**

the area of a rectangular rug is 24 square feet. The perimeter is 28 feet. What are the dimensions of the rug?
*Thursday, April 16, 2015 at 8:12pm*

** math**

LeanNE walks at an average speed of 3 1/3 mph. How far does she walk in 2hrs 15 minutes? 10/3 × 9/4 == 90/12 would equal 7 1/2 miles
*Thursday, April 16, 2015 at 8:04pm*

**Math**

Determine whether each sequence is arithmetic of geometric. Find the next three terms. 14,19,24,29.... A. Geometric,34,39,44 B. Arithmetic,32,36,41 C. Arithmetic, 34,39,44 D. This sequence is neither arithmetic or geometric. Is the answer C? Thank you
*Thursday, April 16, 2015 at 7:45pm*

**Math**

Eddie measured his aquarium using a small fish food box. The box has a base area of 6 inches and a height of 4 inches. Eddie found that the volume of his aquarium is 3,456 cubic inches. How many boxes of fish food could fit in the aquarium?
*Thursday, April 16, 2015 at 7:35pm*

**math**

hamid has 2 qt container of grape juice tell two ways that hamid can divide the grape juice into 5 containers
*Thursday, April 16, 2015 at 7:29pm*

**Math**

The length of a blue ribbon is two-thirds the length of the red ribbon.The blue ribbon is 30 cms long.Write an equation you can use to find the length of r the red ribbon
*Thursday, April 16, 2015 at 7:25pm*

**math word problems**

Q. Marissa had a doctors appointment last Friday. the bill for her visit came to $345. Her family's health insurance will pay 80% of the bill. What is the dollar figure that Marissa's family will have to pay?? - A. Do I divide...?
*Thursday, April 16, 2015 at 7:16pm*

**Math**

Dakota says the point on the number line shown here is 4/5. His teacher says that he is reading the number line incorrectly. What is Dakota's error? What is the correct fraction?
*Thursday, April 16, 2015 at 7:00pm*

**math**

Suppose there are 2 pieces of the cake left over,but you don't know how many pieces were in the whole cake. Explain how you could find the number of pieces in the whole cake if Taylor told you 1/6 of the cake was left. You may show your work in a drawing.
*Thursday, April 16, 2015 at 6:55pm*

**Math**

Lin earns $12 an hour. She wants to buy a new MP3 player. She is considering models that cost at least $84. Writ an inequality that describes how many hours Lin needs to work to be able to buy the player. Explain the answer.
*Thursday, April 16, 2015 at 6:35pm*

**math 8th!**

point A (-2,3) lies on a line with a slope of 2. Describe how to find two points on the line on either side of A.
*Thursday, April 16, 2015 at 6:28pm*

**Math.**

Which roof is steeper: a roof with a rise of 12 and run of 7 or a roof with a rise of 8 and a run of 4?
*Thursday, April 16, 2015 at 6:22pm*

**Math question**

to prepare for a presentation Pete colored one half of a poster Rebecca colored third of the poster what fraction still needs to be colored
*Thursday, April 16, 2015 at 5:49pm*

**Math **

A construction crew wants to hoist a heavy beam so that it is standing up straight. They tie a rope to the beam, secure the base, and pull the rope through a pulley to raise one end of the beam from the ground. When the beam makes an angle of 40 degrees with the ground, the ...
*Thursday, April 16, 2015 at 5:06pm*

**MATH**

Suppose that you work at the Peacock Blue store for 40 hours over five days at a rate of $9.25/hour. You then quit your job. Deductions are FICA (7.65%), federal withholding (12%), and state withholding (8%). Your expenses are transportation at $5.25/day, lunch at $3.85/day, ...
*Thursday, April 16, 2015 at 5:02pm*

**Math **

Can you explain why the scatter plot shows a negative Z value when the Histogram starts at zero.
*Thursday, April 16, 2015 at 4:38pm*

**math**

given the equation -3x +2y =4, Write another equation that will form a linear system with: one solution, no solution and infinite solution. infinite solution: (-3x +2y =) * 3 -> -9x +6y =12 y=3/2x+4 -9x +6y =12 I think we have to multiple the first equation by non-zero ...
*Thursday, April 16, 2015 at 2:27pm*

**Math**

How to sketch ven diagram with 3 events
*Thursday, April 16, 2015 at 1:51pm*

**math**

I need the answers really quick before my time is out HELP PLZZ 3. determine which ordered pair is a solution of y = 2x – 3? A.(-2,7) B.(0,3) c.(-4,-11) d.(5,-7) 4.on which of the following lines does (7,1) lie? A. y-5x=4 b. y=x-10 c. y=-4x+3 D. y=-x=8 6.find the slope of...
*Thursday, April 16, 2015 at 12:53pm*

**Math**

if m<1= 43°, what is m<4? (<= angle sign) can i please get an explanation? im lost
*Thursday, April 16, 2015 at 12:38pm*

**MATH**

Suppose that you work at the Peacock Blue store for 40 hours over five days at a rate of $9.25/hour. You then quit your job. Deductions are FICA (7.65%), federal withholding (12%), and state withholding (8%). Your expenses are transportation at $5.25/day, lunch at $3.85/day, ...
*Thursday, April 16, 2015 at 12:15pm*

**math**

Determine which ordered pair is not a solution of y=-5x-4. (10,-52) (7,-39) (-7,31) (8,-44) I think it is (7,-39)
*Thursday, April 16, 2015 at 12:01pm*

**math**

show that : cos(360*+x)-tan(180*-x)sin(360*-2x)cos(-x) divided by sin(90*+x)=cos2x
*Thursday, April 16, 2015 at 11:42am*

**math **

Evaluate: cos390*-tan150*sin300*cos(-30)/sin120*
*Thursday, April 16, 2015 at 11:31am*

**math**

show that : cos(360*+x)-tan(150*-x)sin(360*-2x)cos(-x)/ sin(90*+x)=cos2x
*Thursday, April 16, 2015 at 11:24am*

**MATH HELP**

What number comes next in the Fibonacci sequence: 0, 1, 1, 2, 3, 5 A)5 B)7 C)8 D)13 IS it b or c
*Thursday, April 16, 2015 at 10:55am*

**math**

The amount of Jen’s monthly phone bill is normally distributed with a mean of $50 and a standard deviation of $10. Find the 25th percentile. A. About $46.30 B. About $43.30 C. About $43.40 D. about $43.20 I came up with $43.26 which its not a choice. Please help!!
*Thursday, April 16, 2015 at 7:31am*

**math plz help Irving**

How many ways can 4 students be chosen from a class of 12 to represent their class at a banquet? A.495 B.990 C.5,940 D.11,880 Is the answer C?
*Thursday, April 16, 2015 at 1:01am*

**math plz help**

The contents of a jar holds 4 red marbles, 7 blue marbles, and 5 green marbles from which you select marbles at random. What is the probability of selecting a red marble, replacing it, and then selecting a blue marble? Show your your work. Is it 4/16 for picking red then 7/16 ...
*Thursday, April 16, 2015 at 12:14am*

**Math**

What do you learn from these stage directions? [The faintest trace of a smile on her lips] A. Julia is suddenly very happy. B. Julia knows something mistress don't know. C. Julia has made an important decision. D. Julia is thinking about someone she loves. Could the answer...
*Thursday, April 16, 2015 at 12:08am*

**math**

Imagine a flat-bottomed cylinderal container with a circular cross section of radius 4 in. a marble with radius 0<r<4 inches is placed in the bottom of the can. what is the radius of the bottom that requires the most water to cover it.
*Thursday, April 16, 2015 at 12:01am*

**math plz help**

A box contains 95 pink rubber bands and 90 brown rubber bands. You select a rubber band at random from the box. Find each probability. Write the probability as a fraction in simplest form. A. Find the theoretical probability of selecting a pink rubber band. Would it be 95/185=...
*Wednesday, April 15, 2015 at 11:56pm*

**math -check**

given the equation -3x +2y =4, Write another equation that will form a linear system with: one solution, no solution and infinite solution. Graph the linear using graphing calculator and write your window setting in the format x: Xmin, xmax, Xscl. Y: Ymin, Ymax, Yscl Please ...
*Wednesday, April 15, 2015 at 11:24pm*

**Math**

If you have a spinner with six spaces each with a letter P,U,I,O,E,N and you spin the spinner twice what is the P(vowel, then P)? A.1/3 B.1/9 C.5/6 D.5/12 Is the answer D?
*Wednesday, April 15, 2015 at 10:43pm*

**6th grade math**

2 line segments intersect to form an angle that has a measure of 50.7 degrees. What is the measure in degrees of an angle that is supplementary to this angle?
*Wednesday, April 15, 2015 at 10:41pm*

**Math (ASAP)**

Write out the first 4 terms of the following sequence that is define recursively. a1=32 ak+1=1/2ak
*Wednesday, April 15, 2015 at 10:10pm*

**math**

the distribution having p.d.f. f(x)=exp(a-x) x>0 Let x1=min{x1,x2,...,xn}and zn=n(x1-a), find the limiting distribution of zn
*Wednesday, April 15, 2015 at 9:52pm*

**math**

The diameters of pencils produced by a certain machine are normally distributed with a mean of 0.30 inches and a standard deviation of 0.01 inches. In a random sample of 460 pencils, approximately how many would you expect to have a diameter less than 0.293 inches? A. 123 B. ...
*Wednesday, April 15, 2015 at 9:46pm*

**Math**

Take a four digit number (abcd) and repeat it to make an eight digit number (abcdabcd). This eight-digit number always has at least three different prime factors, unless you start with a certain four-digit number. Which number is it?
*Wednesday, April 15, 2015 at 9:44pm*

**Math**

Prove that 140 * 141 * 142 * ... * 159 * 160 is divisible by 4321.
*Wednesday, April 15, 2015 at 9:43pm*

**Math**

The time it takes to complete a given trip varies inversely as the speed traveled. If it takes Tim 10 hours tro travel from Cleveland to Albany at 42 mi/h, how long will it take him to make the trip at 60 mi/h?
*Wednesday, April 15, 2015 at 9:39pm*

**Math **

how to multiply1111X101 in base 2 binary
*Wednesday, April 15, 2015 at 9:36pm*

**math **

Imagine a flat-bottomed cylinderal container with a circular cross section of radius 4 in. a marble with radius 0<r<4 inches is placed in the bottom of the can. what is the radius of the bottom that requires the most water to cover it. (include first or second derivative...
*Wednesday, April 15, 2015 at 9:33pm*

**math**

The amount of Jen’s monthly phone bill is normally distributed with a mean of $50 and a standard deviation of $10. Find the 25th percentile. A. About $46.30 B. About $43.30 C. About $43.40 D. about $43.20 I came up with $43.26 which its not a choice. Please help!!
*Wednesday, April 15, 2015 at 9:31pm*

**Math**

I am a closed shape made of 6 line segments. I have2 angles less than a right angle and no right angles. What shape am I draw an example
*Wednesday, April 15, 2015 at 9:24pm*

**math**

the distribution having p.d.f. f(x)=(exp(x)*a^x)/x! x=0,1,2,... a>=0 find the maximum liklihood estimator of a
*Wednesday, April 15, 2015 at 9:18pm*

**Math**

Time varies inversely as the rate of travel. If Jennifer drove 13 hours at an average rate of 54 miles per hour, how long would thr trip take at a rate of 65 miles per hour
*Wednesday, April 15, 2015 at 9:16pm*

**Math**

Mass, m, is varies inversely as acceleration, a. The constant of variation is force,f. Write an equation to express this relationship.
*Wednesday, April 15, 2015 at 9:11pm*

**math**

4.In Amy’s English class, 30% of the students play an instrument. She does not know how many in the whole school play an instrument, but there are 500 students in the school. A.Solve the proportion 30/100=n/500 to estimate the total number of students in the school who ...
*Wednesday, April 15, 2015 at 9:08pm*

**math**

write an addition equation the equation must have a 1 a 2 a 3 digit added and use all of these digits 662-228-8000
*Wednesday, April 15, 2015 at 9:07pm*

**Math**

A truck carries cartons packed with boxes. The boxes were 22 inches long on each edge. If 4 boxes completely fill the carton, what is the volume of carton in cubic feet?
*Wednesday, April 15, 2015 at 9:02pm*

**Math**

3.Max says there were 6 students wearing shorts in his math class. He is not sure how many people were in the class, total, but he thinks about one third of them were wearing shorts. A. What percent is closest to 1/3 ? Explain. B.Write and solve a proportion below, to estimate...
*Wednesday, April 15, 2015 at 8:44pm*

**math**

The batting averages of the first three batters in the Eureka College women’s softball team lineup are .310, .301, and .277. If the first three batters are considered as the “lead-off group”, what is the batting average of the group? A. .301 B. .296 C. There is ...
*Wednesday, April 15, 2015 at 8:41pm*

**Math**

What is 21.21% rounded to two decimal places?
*Wednesday, April 15, 2015 at 8:33pm*

**Math**

Take a four digit number (abcd) and repeat it to make an eight digit number (abcdabcd). This eight-digit number always has at least three different prime factors, unless you start with a certain four-digit number. Which number is it?
*Wednesday, April 15, 2015 at 8:23pm*

**Math (ASAP)**

Write out the first 4 terms of the following sequence that is define recursively. a1=32 ak+1=1/2ak
*Wednesday, April 15, 2015 at 8:22pm*

**Math**

Prove that 140 * 141 * 142 * ... * 159 * 160 is divisible by 4321.
*Wednesday, April 15, 2015 at 8:21pm*

**math word problems**

Q. Mark's doctor appointment was 35 minutes after Tyson 's appointment, Tyson appointment was 20 minutes after Timothy's appointment. Timothy arrived 8 minutes before his appointment but 17 minutes after Raul's appointment which started at 9:30 am. At what time...
*Wednesday, April 15, 2015 at 7:44pm*

**Math**

1.Jake has 10 t-shirts and 5 collared shirts. What is his ratio of t-shirts to collared shirts? this answer is 5/ 10 what i can't figure out is the second part of this 2. If Jake buys 3 new shirts, how many of them would you expect to be to be t-shirts, and how many would ...
*Wednesday, April 15, 2015 at 7:37pm*

**math**

Kenji, a pet store employee, wants to fit two fish tanks on one table. One fish tank is 4 feet wide and the other fish tank is 2/5 of a foot wide. When placed next to each other, what is the total width of the two fish tanks? Simplify your answer and write it as a proper ...
*Wednesday, April 15, 2015 at 7:29pm*

**math**

Mark's doctors appointment was 35 minutes after Tyson 's appointment. Tysons appointment was 20 minutes after Timothy's appointment. Timothy arrived 8 minutes before his appointment. But 17 minutes after Raul's appointment. Which started at 9:30 am. At what ...
*Wednesday, April 15, 2015 at 7:28pm*

**Math**

Kenji, a pet store employee, wants to fit two fish tanks on one table. One fish tank is 4 feet wide and the other fish tank is 2/5 of a foot wide. When placed next to each other, what is the total width of the two fish tanks? Simplify your answer and write it as a proper ...
*Wednesday, April 15, 2015 at 7:28pm*

**math plz help**

A bag contains 5 green marbles,8 red marbles,11 orange marbles, 7 brown marbles, and 12 blue marbles. You choose a marble, replace it, and choose again. What is P(red, then blue)? A.20/43 B.40/43 C.20/1849 D.96/1849 Is the answer A?? Thank you in advance
*Wednesday, April 15, 2015 at 7:26pm*

**math**

A large game die is a cube measuring 1.2” in length. The die is a solid made from liquid plastic. If a game comes with 6 such dice, how many cubic inches of liquid plastic were needed to make the 6 dice?
*Wednesday, April 15, 2015 at 7:06pm*

**math**

Larry and Willa are each reading the same book.Larry has read 2/3 of the book.Willa read 4/6 of the book,so she read more.Is Willa correct?Explain
*Wednesday, April 15, 2015 at 6:31pm*

**math**

area 432 square ft. width is 3/4 of length, what is length
*Wednesday, April 15, 2015 at 6:24pm*

**Math**

Ellen, Fern, and Kyle are all drinking milk from the same size cartons in the cafeteria. Ellen's carton is 3/7 full. Ferns carton is 3/10 full. Kevin's carton is 3/4 full. Who has the least milk left in their carton? Explain how you know?
*Wednesday, April 15, 2015 at 6:09pm*

**Math**

The variable y varies inversely as x : y is 1 2/3 when x is -3/5. Find y when x is 3/7
*Wednesday, April 15, 2015 at 5:58pm*

**Math**

The time it takes to clean the house varies inversely with the number of people cleaning. If it takes 1 person 4 hours to clean the house, how long will it take 3 people? 12 hours
*Wednesday, April 15, 2015 at 5:54pm*

**Math**

The volume of a gas varies inversely as applied pressure if the pressure acting on a 45m^3 of gas is lowered from 3 atmospheres to 2 atmospheres what new volume does the gas occupy
*Wednesday, April 15, 2015 at 5:52pm*

**Math**

A suitcase has a mass of 12,000 grams. What is the mass in kilograms? I say 12
*Wednesday, April 15, 2015 at 3:58pm*

**math**

How many grams equal 7 kg?
*Wednesday, April 15, 2015 at 3:42pm*

**math**

The life span of a DVD player produced by one major company is known to be normally distributed with a mean of 6.2 years. If 4.01% of these DVD players have a life span of more than 8 years, what is the standard deviation of the DVD player’s life span?
*Wednesday, April 15, 2015 at 2:54pm*

**math**

Test scores on a university admissions test are normally distributed, with a mean of 500 and a standard deviation of 100. a. What is the probability that a randomly selected applicant scores between 425 and 575? b. What is the probability that a randomly selected applicant ...
*Wednesday, April 15, 2015 at 2:53pm*

**math**

What is the probability that a randomly selected applicant scores between 425 and 575? a. What is the probability that a randomly selected applicant scores between 425 and 575? b. What is the probability that a randomly selected applicant scores 625 or more?
*Wednesday, April 15, 2015 at 2:50pm*

**even moar math**

You own 5 pairs of jeans and want to take 2 of them with you on vacation. In how many ways can you choose 2 pairs of jeans? - 10 ways - 15 ways - 4 ways - 20 ways **
*Wednesday, April 15, 2015 at 2:50pm*

**More math**

Simplify 9C4. - 126 *** - 15,120 - 5 - 3,024
*Wednesday, April 15, 2015 at 2:17pm*

**Math**

Simplify 6P2. - 30 - 15 *** - 12 - 720
*Wednesday, April 15, 2015 at 2:16pm*

**Simple math.**

Simplify 5! -5 -15 * -120 -125
*Wednesday, April 15, 2015 at 2:15pm*

**Math**

If a man runs for an hour and a half at 8 miles an hour due south; and then he continues south on a bus traveling at 55 miles an hour, for 24 minutes. How far did he travel?
*Wednesday, April 15, 2015 at 12:39pm*

**Math**

Without graphing, tell whether the line containing (6.-3) and (0,-8) is horizontal, vertical or neither. I believe it horizontal
*Wednesday, April 15, 2015 at 11:24am*

**math **

1. Name a pair of complementary angles. (1 point) angle sign1 and angle sign4 angle sign1 and angle sign2 .. angle sign3 and angle sign4 angle sign1 and angle sign6 2. If mangle sign1 = 37°, what is the measure of angle sign4? (1 point) 53° 43° 37° .. 27° 3...
*Wednesday, April 15, 2015 at 11:17am*

**Math**

can positive and negative X axis or positive and negative y axis have different scales? I mean that is it possible for positive and negative sides of a particular axis(X or Y) to have different scales if numbers to be plotted on one side large and small on the opposite side?...
*Wednesday, April 15, 2015 at 11:15am*

**math**

The value of the independent variable in a function is always __?__ the value of the independent variable A greater than B dependent on C equal to D less than
*Wednesday, April 15, 2015 at 10:52am*

**math**

Renee is a sales associate at a store. She earns $80 a week plus a 15% commission on her sales. Last week, she sold $200 worth of items. What is the total amount Renee earned for the week? How much did she earn from commission?
*Wednesday, April 15, 2015 at 10:51am*

**math**

Task is to construct two brick columns of the dimensions shown on which an iron gate will eventually be hung. Because the bricks measure 8" long by 3 1/2" wide by 2 1/2" high, you decide to build each column by laying the bottom row of bricks as shown.
*Wednesday, April 15, 2015 at 10:45am*

**6th Grade Math**

Hi, can someone please give me a few examples of how people use functions in the real world and explain them too? Thank You :)
*Wednesday, April 15, 2015 at 10:11am*

**math**

bruno is measuring water for an experiment. he fills a 2 litre container and a half liter container. how much water does bruno use altogether? give your answer in millilitres.
*Wednesday, April 15, 2015 at 10:09am*

**Math**

Determine which ordered pair is a solution of y=x2 -2. (-2,6) (5,21) (-1,-1) (-5,24)
*Wednesday, April 15, 2015 at 8:40am*

**math**

find the length of an arc of a circle of radius 5.6 cm which subtends an angle of 60 degrees at the centre of the circle.(take pie as 22 divided by 7.)
*Wednesday, April 15, 2015 at 7:56am*

**math**

suppose a hat containing 100 balls consists of 20blue ball,30yellow balls,30red balls and 20green balls.a sample of 5 balls is drawn from the hat one by one without replacement.what is the probability that there will be 2blue balls in the sample
*Wednesday, April 15, 2015 at 7:06am*

**math**

Given the equation - 3x +2y =4. Write another linear equation that will form a linear system with exactly one solution? I usually try to answer b4 i ask question But this time i'm really stuck. plz help ?
*Wednesday, April 15, 2015 at 1:56am*