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Math problem i need the solution 1.a car travel 845 km in 2 hours what was its average speed?

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I also got 422.5km/h..

how i got it...formula is

AVE SPEED = TOTAL DISTANCE / TOTAL TIME

Posted on Sep 10, 2009

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422.5 Km./Hr.

Posted on Nov 27, 2008

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So I got this H.W question, can you see if you can put it into an equation, and solve it? How fast is each boat traveling in knots? The tall ships speed multiplied by 10 hours equals the distan


First translate the various statements of the problem into equations. then try to solve the equations. It won't do much good if I just gave you the answers.

Sep 27, 2014 | Mathsoft StudyWorks! Middle School Deluxe...

1 Answer

Give some example of math equation?


The following are examples of expressions:
2
x
3 + 7
2 × y + 5
2 + 6 × (4 - 2)
z + 3 × (8 - z)
Example:
Roland weighs 70 kilograms, and Mark weighs k kilograms. Write an expression for their combined weight. The combined weight in kilograms of these two people is the sum of their weights, which is 70 + k.
Example:
A car travels down the freeway at 55 kilometers per hour. Write an expression for the distance the car will have traveled after h hours. Distance equals rate times time, so the distance traveled is equal to 55 × h..
Example:
There are 2000 liters of water in a swimming pool. Water is filling the pool at the rate of 100 liters per minute. Write an expression for the amount of water, in liters, in the swimming pool after m minutes. The amount of water added to the pool after m minutes will be 100 liters per minute times m, or 100 × m. Since we started with 2000 liters of water in the pool, we add this to the amount of water added to the pool to get the expression 100 × m + 2000.
To evaluate an expression at some number means we replace a variable in an expression with the number, and simplify the expression.
Example:
Evaluate the expression 4 × z + 12 when z = 15.
We replace each occurrence of z with the number 15, and simplify using the usual rules: parentheses first, then exponents, multiplication and division, then addition and subtraction.
4 × z + 12 becomes
4 × 15 + 12 =
60 + 12 =
72
Example:
Evaluate the expression (1 + z) × 2 + 12 ÷ 3 - z when z = 4.
We replace each occurrence of z with the number 4, and simplify using the usual rules: parentheses first, then exponents, multiplication and division, then addition and subtraction.
(1 + z) × 2 + 12 ÷ 3 - z becomes
(1 + 4) × 2 + 12 ÷ 3 - 4 =
5 × 2 + 12 ÷ 3 - 4 =
10 + 4 - 4 =
10.

hope that help you

Jun 22, 2011 | LeapFrog Turbo Twist Math Cartridge 5th...

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With the same push, would a heavy car travel further, less far or the same as a light car?


Basic formula: F = M * A
where:
F = force
M = mass
A = acceleration

Keep 'F' constant, and increase 'M', and 'A' will be reduced.

So, lower acceleration means less travel.

Mar 26, 2010 | The Learning Company Achieve! Math &...

2 Answers

If a call takes 2 minutes in length how many calls can be made in 7.5 hours and how did you get to that number, my math is rusty


Its simple, 60 minutes in an hour / 2 minutes length = 30 calls per hour.
30 calls per hour X 7.5 hours = 225 CALLS
225 CALLS 

Feb 10, 2010 | Bagatrix Basic Math Solved! 2005 (305101)...

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Two clocks are set at 6am one clock gains 30 seconds every hour and the second clock loses 1 minute every hour. at what time will the faster clock be 30 minutes ahead of the second clock


Compute the difference in clock-speeds, namely 90 seconds per hour.
Convert the units of time: 30 minutes becomes 180 seconds.
So, divide 180 by 90 to get '2', namely 2 hours after the 6 o'clock "start" time, which makes it 8 PM.











P.S. There is at least one error in the above solution. If you truly understand the solution, make the necessary correction, and submit the corrected "homework" to your teacher.

Jan 07, 2010 | M2K Garfield: It's All About Math Math...

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Ms. Driva Reck drove from her home to the service station at 48 km/h. She returned home by bicycle at 16 km/h. The entire trip took 4 hours. How far was the service station from Ms. Reck's home?


Ms. Reck's trip on her bike took 3 times longer (48/16ths) so the service station was 48 km from her home. It took her one hour (1x48km)= 48km) to get there and 3 hours to get home (3x16=48km) for a total of 4 hours...

Nov 22, 2009 | The Learning Company Achieve! Math &...

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