Saturday

September 20, 2014

September 20, 2014

Total # Posts: 43

**math **

a mother wants to $9000 for her son's future education. She invested a portion of the money in a bank certificate(CD account) which earns 4% and the reminder in a savings bond that earns 7%. If the total interest earned after one year is $540, how much money was invested ...
*September 3, 2012*

**chemistry**

Dr Bob i know the density of a neutron is 1.00727638 but do not know how to multiply it out. This supposed to be a beginner coarse.
*May 4, 2012*

**chemistry**

assuming that a neutron star has the same density as a neutron, calculate the mass in kilograms of a small piece of a neutron star the size of a spherical pebble with a radius of 0.11mm
*May 4, 2012*

**chemistry**

if the radius of a neutron is 1.0 x 10 minus 13cm calculate the density of a neutron in g/cm 3
*May 4, 2012*

**algebra 2**

I don't know how to do this the speed of train A is 18mph slower than the speed of train B train A travels 190 miles in the same time it takes train B to travel 280 miles find the speed of each train please help so i can pass my quiz.
*March 29, 2012*

**algebra 2**

to determine the number of deer in a game preserve a conservationist catches 330 deer tags them and lets them loose later 672 deers are cought 168 of them are tagged how many deer are in the preserve I don't now how to get the answer can someone work this for me please. ...
*March 29, 2012*

**algebra 2**

i need to find all numbers for which the rational expression is undefined p^3-9p ------ p^2-16 please help
*March 28, 2012*

**algebra 1b**

to determine the number of deer in a game preserve a conservationist catches 330 deer, tages them and lets them loose later 672 deers are cought 168 of them are tagged how many deer are in the preserve
*March 28, 2012*

**algebra**

hooke's law the distance d when a spring is stretched by a hanging object. if the distance is 14cm when the weight is 4kg what is the distance when the weight is 9kg The distance is
*December 15, 2011*

**algebra**

find the variation constate and an equation of variation where y varies inversely as x and y=1 whenx=6 what is the variation constant is
*December 15, 2011*

**algebra**

10cm2 of a normal specimen of human blood contains 1.2g of hemoglobin how many grams does 47cm3 of the same blood contain
*December 15, 2011*

**algebra**

the number N of aluminum cans used each year varies directly as the number of people p using the cans. if 58 people us 23,432 cans in one year, how many cans are used in a cith which has a population of 1,956,000
*December 14, 2011*

**algebra**

the office jet printer can copy maria's dissertation in 16min the laser jet printer can copy the same document in 8min if the two machines work together how long would they take to copy the dissertation
*December 14, 2011*

**algebra**

there are approximately 4lbs of muscle for every 5lbs of body weight of a certain animal for a 115-lbs animal, how much of the weight is muscle
*December 14, 2011*

**algebra**

explain how you would know if your answer will be a solution or rational expression
*December 14, 2011*

**algebra**

a sample of 144 firecrackers contained 8 duds how any duds would you expect in a sample of 2016 firecracker
*December 14, 2011*

**algebra**

a sample of 144 firecrackers contained 8 duds how many duds would you expect in a sample of 2016 firecracker.
*December 14, 2011*

**algebra**

a long distance trucker traveled 64miles in one direction during a snow strom. the return trip in rainy weather was accomplished at double the speed and took 2 hours less time. find the speed going.
*December 13, 2011*

**algebra**

the speed of a passenger train is 20mph faster than the speed of a freight train. the passenger train travels 300 miles in the same time it takes the freight train to travel 200miles find the speed of each train.
*December 13, 2011*

**algebra**

the office jet printer can copy maria's dissertation in 16 min. the jet printer can copy the same document is 8 min if the two machines work together how long would they take to copy the dissertation
*December 13, 2011*

**algebra**

jack usually mows his lawn in 4 hours mariltn can mow the same yard in 7 hours how much time would it take for them to mow the lawn together
*December 13, 2011*

**algebra**

10cm2 of a normal specimen of human blood contains 1.2g og hemoglobin how many grams does 47cm3 of the same blood contain
*December 13, 2011*

**algebra**

a sample of 144 firecrackers contained 8 duds how many duds would you expect in a sample of 2016 firecracker.
*December 13, 2011*

**algebra**

the stopping distance d of a car after the brakes are applied varies directly as the square of the speed r if a car travelling 80mph can stop in 360ft, how many feet will it take the same car to stop when it is travelling 70mph
*December 13, 2011*

**algebra**

the number of kilograms of water in a human body varies directly as the mass of the body an 87kg person contains 58kg of water how many kilograms of water are in a 72-kg person
*December 13, 2011*

**algebra**

how high is a tree that casts a 30ft shodow at the same time a 12ft pole casts a shodow which is 6ft long
*December 13, 2011*

**algebra**

find the variation constant and an equation of variation where y varies directly as x and y=35 when x=5 the variation constant is k=
*December 13, 2011*

**algebra**

how high is a tree that casts a 30ft shodow at the same time a 12ft pole casts a shodow which is 6ft long
*December 13, 2011*

**algebra**

there are approximately 4lb of muscle for every 5lbs of body weight of a certain animal for a 115-lb animal how much of the weight is muscle
*December 13, 2011*

**algebra**

a particular hybrid car travels approximately 288mi on 6 gal of gas. find the amount of gas required for a 912-mi trip
*December 13, 2011*

**math**

what is the area of a triangle if it has a base of 6in and a height of 3in ?
*January 24, 2011*

**math**

if w = 12.34, what is the value of the expression below 421.9 + 6w
*January 24, 2011*

**math**

A.use the distributive property to write an expression that is equivalent -3(x + - 8)
*January 24, 2011*

**math**

11.64 each
*January 24, 2011*

**math**

what is my question you mean
*January 24, 2011*

**math**

The total cost of for 24 students'admission to a museum was $92.40. What was the cost per student?
*January 24, 2011*

**math**

Wasn't sure but I had the same answer thanks
*January 24, 2011*

**math**

rockfish is on sale for $3.29 a pound. how much a piece that weighs 0.75 pound cost?
*January 24, 2011*

**math**

A.use the distributive property to write an expression that is equivalent -3(x + - 8) if the coefficient of the variable is increased by 10, what would the new expression be after you apply the distributive property?
*January 24, 2011*

**math**

Thats how its written on the paper Sr. I couldn't display the rectangle. so yeah!
*January 24, 2011*

**math**

the length of this rectangle is 3 cm greater than its width ,as represented in this figure below . the total perimeter is greater than 24 cm. rectangle under bottom* __________ __________ w+3 A. write the inequality that could be solved to find w,the width of the rectangle
*January 24, 2011*

**math**

shaniquya went to the carnival with her friends. the total cost in dollars, c, of attending the carnival is given by the equation: 5(t-10)-2t=c where t represents the number of tickets purchased. A. if the cost, c, is $10, how many tickets did she purchase?
*January 24, 2011*

**Psychology**

We (3) have to lead half hour class discussion on introduction to Psych., ask 3 questions, make a case study. We don't know where to start. It's only introduction?? Help!! tx
*January 13, 2008*

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