A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing


  • one year ago

One milliliter of blood contains approximately 5 million red blood cells, and one pint is about 473 milliliters. Create and solve an equation that can be used to find approximately how many red blood cells are in a pint of blood. Use scientific notation for the first box of the equation. + 5 × 109 2.4 × 109 473 × 5 × 106 9.73 × 109 4.73 – ÷ 9.73 × 106 2.4 × 106

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Hi catwomen12 --- don't know if you've got this one done yet. You might consider unit analysis: there's 1 ml blood per 5x10^6 red blood cells; view this as the fraction \[ \frac{1\text{ml blood}}{5\times 10^6 \text{ml red blood cells}}\] Then, since 1 pt = 473 ml, the fraction \[\frac{1 \text{pt}}{473 \text{ ml blood}}\] is just the number 1!! (Numerator and denominator are the same.) If you multiply these two fractions together, you're really just *re-naming" the first fraction (since you're multiplying it by one); what cancels out? What's left?

  2. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...


  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.