posted by .

I have to convert inches to 250 cm.My book states the expression to calculate this as 250 cm x 1in/2.54 cm. I followed through to divide, and got 98.425, which following the rules of significantdigits, would equal 98, right? 250 only has 2 sig digs, it'd have to be 98. But my book says its 98.4. How can this be?

  • Chem -

    I think your book is counting 250 cm as 250. cm. which makes 3 s.f. and that's how they obtained 98.4. You're right, however, that 250, written that way, has only two s.f.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. algabra

    A cylinder has a radius of 5 in. If the volume of the cylinder is 250 pie inches cubed, What is the height of the cylinder?
  2. math

    convert to lowest terms 676/1000 how do i do this divide by 2 338/500 divide by 2 169/250
  3. chemistry

    How many grams of NaCl should be added to 250 grams of water to make a 0.40 m solution?
  4. algebra help please

    The U.S. population in 1990 was approximately 250 million, and the average growth rate for the past 30 years gives a doubling time of 66 years. The above formula for the United States then becomes P (in millions) = 250 times 2( y-1990)/66 …
  5. English

    Please help me figure out what I got on my exams, am kind of worried!Please tell me if I am passing! Thank you! I got 113of 250 on my first exam. 113/250*100=.204304 is this right?
  6. math

    if you had 250 in your account, then deposited x dollars in the account, How do you write a expression that shows the new balance?
  7. Math (Please Help)

    3. A hot air balloon is at a height of 2,250 feet. It descends 150 feet each minute. Find it's height after six, eight, and ten minutes. Make a table to show the pattern of heights. Write an expression for the balloon's height at "m" …
  8. Pre-Calculus/Trigonometry

    Help please Tracy has a cell phone plan that provides 250 free minutes each month for a flat rate of $29. For any minutes over 250, Tracy is charged $0.35 per minute. Which of the following piecewise functions represents charges based …
  9. physics

    Calculate the work required to be done to stop a car of 250 kg moving at a speed of 18km/hr?
  10. Math

    Find the savings plan balance after 2 years with an APR of 9​% and monthly payments of ​$250 Can someone help me?

More Similar Questions