01/03/16

The sum of 3 consecutive numbers is -12 what are the 3 numbers
How do I find the 3 numbers
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01/02/16

Find the sides of the shapes
A regular octagon, a square and an equilateral triangle all have equal sides. If the sum of the perimeters of the square and triangle is no more than 28 cm less than twice the perimeter of the... more
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01/02/16

what is the percentage of 84-14=70
If you have 84 and subtract 14 it equals 70 so what would the percentage be ?  
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01/01/16

a bird can travel 90 miles and hour an train travels 60 miles and hour
a bird can travel 90 miles and hour an train travels 60 miles and hour if the bird and train leave at the same time 90 miles apart and the bird fly to the train and goes back the the station how do... more
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12/30/15

Mr. R went kayaking in a river. Paddling at a constant rate against the current for 20 km from Town A to Town B took him 4 hours. The return trip with the curre
Mr. R went kayaking in a river. Paddling at a constant rate against the current for 20 km from Town A to Town B took him 4 hours. The return trip with the current took 2.5 hours. Rate of current... more
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12/28/15

Please help!
A right circular cone is embedded inside a sphere such that the rim of the base and the vertex of the cone are on the surface of the sphere. Given that the cone has a height of 8 cm and a base... more
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12/28/15

the formula for finding the perimeter p of a rectangle with length l and width w is given. which formula shows how the length of a rectangle can be determined f
Please help me I don't understand. The options are: A. L = p/2 - 2w B. L = p - 2w/2 C. L = p/2 + w D. L = p -2/ 2w
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12/28/15

Maths, surds
Hello, I would like to receive help with surds question:   '5√5 can be written in the form 5^k   Find the value of k.'   Thank you in advance.
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12/28/15

Maths (finding value)
Could I receive help with questions like below, because I have encountered with many of these and I don't know how to solve them.   'Solve n^2-n-90=0 to find the value of n'   Thank you in... more
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12/26/15

building height problem
The federal building is as much taller than the state building as the state building is taller than the city building. If federal building is 160 ft tall and city is 80 ft tall. How tall is state... more
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12/25/15

equation in standard form
The end points of a diameter of a circle are (-2,-3) and (-10,-9)   Write an equation of the circle in standard form.
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12/25/15

i drove from home to work at 30 mph. after work traffic was heavier and drove home at 25 mph. my driving time to and from work was 1 hour and 6 minutes. how far
do i live from work?
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12/22/15

Confusing algebra
Lubricating oil worth 28 cents/quart is to be mixed with oil worth 33 cents/quart to make up 45 quarts of a mixture to sell at 30 cents/quart. What volume of each grade should be taken
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12/22/15

Rational Expression Word Problem
a man takes 2/3 times as long to go 60 miles downstream in his boat as he does to return/ If the boat's speed is 25 mph in still water, find the speed of the current
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12/22/15

Math word problem
A boat travels at a constant speed of 20 miles per hour, relative to the water, as it makes a trip downstream and then returns. If the initial trip downstream takes the boat 30 minutes and the... more
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12/21/15

the sum of two numbers is 22. The difference is 6. what are the two numbers?
the sum of two numbers is 22. the difference is 6. what are those two numbers?  
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12/21/15

the sum of s
The sum of S of the forst n natural numbers 1,2,3,..., n, is given by the formula S= n/2 * (n+1) How many consecutive natural numbers starting with 1 produces the sum of 253?   n/2 = fraction, n... more
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12/20/15

Rate of work
Mower A can mow the village park in 3 hours and mower B can mow it in 2 hours. At 7 am Mower A began to mow the parkand was joined by Mower B at 7:30 am. At what time was the job completed?
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12/20/15

Evaluate and give the answer in scientific notation. Assume that the factors are approximations.
    [(6.4*10^-3)(8.2*10^5)]/(2.1*10^-2)
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12/20/15

One leg of a right triangle is 2 more than twice the other. The hypotenuse is 13 meters. Find the length of the two legs.
 Must use algebra to solve problem.
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12/20/15

If cosB=1/9, then what is the positive value of cos1/2B, in simplest radical form with a rational denominator?
If cosB=1/9, then what is the positive value of cos1/2B, in simplest radical form with a rational denominator?
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12/20/15

m<a = m<b and m<b = m<c
Conjecture
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12/19/15

The length of a rectangle is 8 feet longer than it is wide. If each side is increased 8 feet, then the area is multiplied by 4. What was the size of the origina
The length of a rectangle is 8 feet longer than it is wide. If each side is increased 8 feet, then the area is multiplied by 4. What was the size of the original rectangle?
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12/19/15

Each side of a square is increased 3 inches. When this happens, the area is multiplied by 9. How many inches in the side of the original square?
Each side of a square is increased 3 inches. When this happens, the area is multiplied by 9. How many inches in the side of the original square?
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12/19/15

If the perimeter of a rectangle is 26 cm and the area is 40 square cm, then what are the dimensions of the rectangle?
If the perimeter of a rectangle is 26 cm and the area is 40 square cm, then what are the dimensions of the rectangle?
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