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Solving Equations!

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Solving Equations! Use these 3 steps when solving ALL equations in here! Let s use an example equation: What is the density of an object if its mass is 10 grams and ... – PowerPoint PPT presentation

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Title: Solving Equations!


1
Solving Equations!
  • Use these 3 steps when solving ALL equations in
    here!

2
Lets use an example equation
  • What is the density of an object if its mass is
    10 grams and its volume is 5 cubic centimeters?
  • What should we do to solve this?
  • WHEN SOLVING EQUATIONS IN EARTH SCIENCE, THERE
    ARE 3 STEPS THAT YOU MUST FOLLOW!!
  • Lets try it!

3
STEP 1! Write the equation!
  • EXAMPLE What is the density of an object if its
    mass is 10 grams (g) and its volume is 5 cubic
    centimeters (cc)?
  • In this case, we need the DENSITY formula
  • Find the equation on the 1st page of your ESRT
  • Density mass/volume
  • D m/v

4
STEP 2 Substitute in your numbers!!
  • EXAMPLE What is the density of an object if its
    mass is 10 grams and its volume is 5 cc?
  • Now we plug in numbers from the equation
  • D m/v (from step1)
  • D 10g/5cc
  • Whew! OK, ready for the last step?

5
STEP 3 Solve the Equation!
  • EXAMPLE What is the density of an object if its
    mass is 10g and its volume is 5cc?
  • NO NAKED NUMBERS!! Always include units.
  • Also, circle your final answer
  • D m/v (from step1)
  • D 10g/5cc (from Step 2)
  • Whats 10g/5cc
  • You got it 2, but 2 what?
  • Yes, 2 g/cc
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