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October 23rd, 2008, 07:12 AM   #1
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Can you solve that problems?

[[color=#FF0000]b]Use of variables and expressiions[/color]
Business and finance the simple interest earned when a principal P is invested at a rate r for a time t is calculated by the principal by the rate the time. write an expression for the interest earned.

pt/l






Science and medicine the kinetic energy of praticle of mass m is found by taking one half of the product of the mass and the square of the velocity V
Write an expression for the kinetic energy of a particle.
m=1/2



[color=#FF0000]IN TERMS OF NOTION[/color]
Number problem two numbers have a sum of 35 if one number is x express the other number in terms of x
x=35?


[color=#FF0000]Use of expressions evaluating expressions[/color]
Technology the formula for the total resistance in parallel cricuit is RT=R1R2/R1+R2
find the total resistace if R1=9 ohms and R2=15 ohms

9 15/9+15=





Geometry the perimeter of a rectangle of lenght L and width W is given by the formula P=2l+2w find the perimeter when L=10 inches {in}
and w =5 in
p=2(10)+2(5)20+10=30



Business and finance the simple interest I on a principal of P dollars at interest rate r for time t, in years is given by=1 part. find the simple interest on a pricipal of 6,000 at 4%for 3 years ( note 4%=0.04)



Science and medicine the formula that relates Celsius and Fahrenheit temperatures is F=9/5+32 If the temperature is 10 C WHAT IS fahrenheit temperature?




Business and finance a local telephone company offers a long distance telephone plan that charges $5.25 per month and $0.08 per minute of calling time. the expression 0.08t+5.25 represents the monthly long distance bill for a customer who makes t minutes min of long distance calling on this plan find the monthly bill for a customer who makes 173 min of longdistance calls on this plan.





Science and medicine the speed of a model car as it slows down is given by v=20-4t where v is the speed in meters per second m/s and t is the time in secof s during which the car has slowed find the speed of the car 1.5 s after it has begun to slow
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October 23rd, 2008, 08:31 AM   #2
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Re: Can you solve that problems?

Please help me

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October 23rd, 2008, 12:49 PM   #3
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Re: Can you solve that problems?

You need a complete course of study, not just a little help. Really, you should consult with your teacher or a tutor. Simply doing these will show you nothing. You need someone right there explaining things as they go along.
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October 24th, 2008, 04:05 AM   #4
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Re: Can you solve that problems?

ok can you change that words into numbers please
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October 24th, 2008, 08:16 AM   #5
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Re: Can you solve that problems?

That won't help you.

E.G. Science and medicine the kinetic energy of praticle of mass m is found by taking one half of the product of the mass and the square of the velocity V
Write an expression for the kinetic energy of a particle.
m=1/2
[color=#FF0000]
KE = (1/2)mv^2[/color]

Compare that with what you have written. As I said, you need a complete course of study/ a teacher/a tutor, not just our written solutions to these problems.
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October 24th, 2008, 08:20 AM   #6
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Quote:
Originally Posted by Rany Tandoom
. . . the simple interest earned when a principal P is invested at a rate r for a time t is . . .
Prt

Quote:
Originally Posted by Rany Tandoom
. . . the kinetic energy of particle of mass m is found by taking one half of the product of the mass and the square of the velocity V.
The kinetic energy of the particle is given by

Quote:
Originally Posted by Rany Tandoom
. . . two numbers have a sum of 35; if one number is x, express the other number in terms of x.
The other is

Quote:
Originally Posted by Rany Tandoom
. . . the formula for the total resistance in parallel circuit is RT=R1R2/R1+R2;
find the total resistance if R1=9 ohms and R2=15 ohms.


Quote:
Originally Posted by Rany Tandoom
. . . the perimeter of a rectangle of lenght L and width W is given by the formula Find the perimeter when L = 10 inches {in} and W = 5 in.


Quote:
Originally Posted by Rany Tandoom
. . . the simple interest I on a principal of P dollars at interest rate r for time t, in years is given by I = Prt. Find the simple interest on a principal of $6,000 at 4% for 3 years (note 4%=0.04).
I = $6,000(0.04)(3) = $720.

Quote:
Originally Posted by Rany Tandoom
. . . the formula that relates Celsius and Fahrenheit temperatures is F=(9/5)C+32. If the temperature is what is the Fahrenheit temperature?
F = (9/5)10 + 32 = 50.

Quote:
Originally Posted by Rany Tandoom
. . . a local telephone company offers a long distance telephone plan that charges $5.25 per month and $0.08 per minute of calling time. The expression 0.08t + 5.25 represents the monthly long distance bill for a customer who makes t minutes (min) of long distance calling on this plan. Find the monthly bill for a customer who makes 173 min of long distance calls on this plan.
You need to work out 0.08(173) + 5.25, i.e., 13.84 + 5.25. The answer is therefore $19.09.

Quote:
Originally Posted by Rany Tandoom
. . . the speed of a model car as it slows down is given by v = 20 - 4t, where v is the speed in meters per second (m/s) and t is the time in seconds during which the car has slowed. Find the speed of the car 1.5 s after it has begun to slow.
You need to work out 20 - 4(1.5), which is 20 - 6, i.e., 14. The speed of the car will be 14 m/s.
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October 24th, 2008, 12:27 PM   #7
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Re: Can you solve that problems?

Thank you very much
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