11/19/14

two pipes fills a 50 l the same tank, the first tank rate 15 l/ h and the other is 10 l/h. the first pipe runs alone for 100 min. how long does the whole take?
Pipe A fills a 5liter tank at a rate of 15liter per hour. Pipe B fills the same thank at a rate of 10 l/h. Pipe A runs alone for 100 minutes then the two of them together finish filling up the... more
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11/19/14

Jane's car travels 6 mph slower then Jon's. In the same time that Jon travels 12 miles, Jane travels 9.6 miles. Find the speed of each car.
Jane's car travels 6 mph slower then Jon's. In the same time that Jon travels 12 miles, Jane travels 9.6 miles. Find the speed of each car.
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11/19/14

The reciprocal of 4 plus the reciprocal of 12 is the reciprocal of what number?
The reciprocal of 4 plus the reciprocal of 12 is the reciprocal of what number?
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11/19/14

write a polynomial function of minimum degree with real coefficients whose zeros include those listed. write the polynomial in standard form.
3i and _/3
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11/19/14

shorten a x 3 x b
that's it.
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11/19/14

how do you write this rational number in simplest form for each decimal expansion??? help
         ---- 1). 0.15            ---- 2). 1.290
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11/19/14

A square piece of cheese covers 8 square inches of a plate. What is the approximate length of one side of the piece of cheese
I need this answer for homwork
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11/19/14

use properties of logarithms to expand the logarithmic expression
use properties of logarithms to expand the logarithmic expression as much as possible. evaluate logarithmic expressions.     In (e2 /3)
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11/18/14

how do you graph square roots ?? help:(I am so lost!!!
√10 √30 √50 √60
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11/18/14

How many children are there in a family where each girl has as many brothers as sisters....
How many children are there in a family where each girl has as many brothers as sisters, but each boy has twice as many sisters as brothers?    
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11/18/14

if (a,-8) is a solution to the equation a=4b-7, what is a?
is (a,-8) the equation to a=4b-7, what is a?
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11/18/14

Solve this Word Problem
Bryn paddled her canoe 10 miles upstream, and then paddled back to her starting point.  If the rate of the current was 3 mph and the entire trip took 3 1/2 hours, what was Bryn's rate?
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11/18/14

help please
Select The appriximate values of x that are solutions to f(x)=0, where f(x)= -5x^2 +  4x + 9
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11/18/14

jack is 24 years older than diane , In 2 years jack will be three times older than Diane , what is jacks current age ?
I need to you to help me answer this because i really dont get this , it is really hard to do.  
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11/18/14

Pleasee help.. I tried 5 timess !!!!! MATH WORD PROBLEM
Elsa drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 7 hours. When Elsa drove home, there was no traffic and the trip only took 4 hours. If her... more
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11/17/14

Algebra sequence
Find missing in numbers in sequence and out numbers?   in numbers:   1,5,13,29,E,F out numbers: 6,18,42,G,H
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11/17/14

Number sequence
Find number sequence and missing numbers in c & d?   in numbers: -4,2,9,-12,-31,19 out numbers: 14,-4,-25,38,c,d
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11/17/14

A gardener wants to make a rectangular enclosure using a wall1 side and 120 m of fencing for the other 3 sides.find the values of x that gives the greatest area
I need help please
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11/17/14

There were 100 kg. of berries. The moisture in the berries was 99%. Determine the total weight of he berries when the moisture becomes 98%
We haven't been over this subject yet. It's extra credit
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11/17/14

Word Problem PLEASE HELP
A car passes a landmark on a highway traveling at a constant rate of 45 kilometers per hour. One hour later, a second car passes the same landmark traveling in the same direction at 65 kilometers... more
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11/17/14

An aeroplane covers a certain distance at a speed of 240 km/h in 5 hours. To cover the same distance in 1 2/3 hours, it must travel a speed of
An aeroplane covers a certain distance at a speed of 240 km/h in 5 hours. To cover the same distance in 1 2/3 hours, it must travel a speed of
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11/17/14

an airplane /car speed ratio
An airplane traveled 2000 km in the same time that a car traveled 300 km. If the rate of the plane is 340 km/h greater than the rate of the car, find the rate of the car
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11/17/14

Parabola word problem
Find two or more numbers having a sum of 50 such that the sum of the square of one and three times the square of the other is a minimum.
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11/16/14

Two cards are selected at random from a standard deck of 52 cards. Find the probability that both of the cards are kings.
Also, find the probability that none of the cards are aces. And finally, find the probability that both of the cards are clubs.   Any help is greatly appreciated!  Thank you!
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11/16/14

The student council is sponsoring a carnival to raise money. tickets cost $5 for adults and $3 for students. The student council wants to raise $450.
Write an equation to find the number of each type of ticket they should sell.
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