08/06/16

is x=-7 a solution of the equation -9=3x +9?
thanks for helping me
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08/05/16

if you are 4/7 miles away from home and can walk 33/7 mph. how long will it take you to go home?
how long will it take you walk home?
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08/05/16

dividing fractions with x
(x^2 -1)/(x-1)    can I divide the X^2 by the x, and the -1 by the -1 to give me  x+1, or do I need to separate it into    x^2/(x-1)  and -1/(x-1)  to get    -x + -1/(x-1)
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08/05/16

How long (in minutes) will a 400-mile road trip take at 70 miles per hour? Round your answer to the nearest minute.
1 hour equal 60 minutes
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08/04/16

hard word problem
4. The equation S = 93log(d) + 65 relates the speed of the wind, S, in miles per hour near the center of a tornado to the distance that the tornado travels, d, in miles. A) If a tornado travels a... more
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08/04/16

Word problem
So my boyfriend and I are getting different answers when trying to solve a word problem. Tommy works 40 hours a week, at 15$ an hour. Tommy also works 6 hours a week at 22.50$ an hour. How much... more
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08/04/16

A bicyclist rides 55km in 1 Hour, 30 Minutes. What is his speed?
I know you have to convert 55km to meters.
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08/04/16

multiplying
6x9 (8x+7)
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08/04/16

What is the distance HP?
A uniform beam HK of length 10k and weighing 200N is supported at both ends. A man weighing 1000N stands at a point P on the beam. If the reactions at Holborn and K are respectively 800N and 400N.... more
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08/04/16

How can I find the midpoint of the line seven times joining the points R(3,1) and S(-4,2) ?
My new school has a summer packet and my old teacher never taught me it so it would be amazing if someone could please explain how to do it.
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08/04/16

A set of 3 numbers is the product of the 2nd and 3rd number is positive. 2nd number is 2 more than the first number and the 3rd number is 5 less than the 2nd no
you will show your whole solution with step by step and explain how you get it.
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08/03/16

jake ate 4.5 pounds of candy in one week. If he ate the same amount of candy everyday, how much candy did he eat each day? I am killin myself to get the answer
jake ate 4.5 pounds of candy in one week. If he ate the same amount of candy everyday, how much candy did he eat each day?
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08/02/16

I need help on trigonometry
A ship at sea, the Gladstone, spots two other ships, the Norman and the Voyager, and measures the angle between them to be 38°. The distance between the Gladstone and the Norman is 2640 yards. The... more
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08/02/16

can some one help me solve the math problem
 Suppose that an arrow was fired vertically upward from a crossbow at ground level and that it struck the ground 20 seconds later.  If air resistance may be neglected, find the initial velocity of... more
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08/02/16

Iron Man MPH Speed
Two passenger trains 200 miles apart are headed toward each other on the same track—one at 50 mph and the other at 70 mph. Ironman responds to the danger by flying back and forth between the... more
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08/02/16

Suppose that an arrow was fired vertically upward from a crossbow at ground level and that it struck the ground 20 seconds later. If air resistance may be negl
can anyone help solve this math word problem.
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08/02/16

Exponents and power quotient
[(3x)2(3x-2)/3x2]2 
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08/02/16

Exponents and power of quotient
(X-a/x)b
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08/02/16

I need help the correct formula for the problem below
how to figure out the distance between (-1.0) and(2.-4)
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08/02/16

Write a quadratic equation
Write a quadratic equation having the given numbers as solutions    -10 and -1
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08/02/16

Estimate it's temperature
A piece of metal is heated to 300 degrees Celsius and then placed in a cooling liquid at 50 degrees Celsius after 4 minutes, the metal has cooled 175 degrees Celsius estimate the temperature after... more
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08/02/16

Rate of increase using a differential equation
If a population doubles every 8 years and the rate of increase is proportional to the number of people find. a) the number of people in 10years b)how long it will take for the population to treble
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07/31/16

four years ago the fath age was three times the age of his son. the total
four years ago the father age was three times the age of his son. the total of ages of the father and the son after four years will be 64 years what is the fathers age at present please understand... more
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07/30/16

bacteria word problem
A bacteria culture starts with 560 bacteria and grows at a rate proportional to its size. After 3 hours there will be 1680 bacteria.(a) Express the population P after t hours as a function of... more
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07/28/16

Word problems involving tempature.
A longer problem that I'm having trouble figuring out.   Police arrive at a murder scene at 1: 00 AM and immediately record the body's temperature which was 90degrees F At 3:00 AM.Later, they... more
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