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Math Review Unit 1

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  • What is a direct proportion? What does it mean?
    When two values increase or decrease at the same rate
  • If someone say "five squared is ten", why are they wrong?
    Because five squared means 5 time 5 which is 25. They simply multiplied 5 and 2 which is wrong
  • Find and fix the mistake: If 15% of our daily sugar intake is 10g, that means our daily sugar intake limit is 50g.
    The daily sugar intake limit is actually about 66%
  • Expain the Product Rule in exponents when the base numbers are different but the exponents are the same. Provide an example
    You multiply the bases and keep the exponents, answers may vary
  • In the statement: 17% of 100 is 17, what is the 100?
    Base Percentage
  • Describe the Quotient Rule in exponents when the bases numbers are different and the exponents are the same. Provide an example
    Divide the base numbers and keep the exponents, answers may vary
  • With Inverse Proportions, do we look for the unit rate or the constant?
    The constant
  • In the statement: 17% of 100 is 17, what is the 17%?
    Percent
  • What is simple interest?
    Interest that is only based on the principal amount
  • When we deal with Direct Proportions, do we look for the unit rate or the constant?
    Unit rate
  • What do you do when you have a Power of a Power in exponents? Provide an example.
    Multiply the exponents, answers may vary
  • Describe the Product Rule in exponents when the base numbers are the same but the exponents are different. Provide an example
    Keep the base and add the exponents, answers may vary
  • What is an Inverse Proportion? What does it mean?
    When one value increases, the other value descreases.
  • Is this an example of a Direct or Inverse Proportion?: 10 apples are $10, how much are 15 apples? What is the answer?
    Direct Proportion, $15
  • Is this an example of a Direct or Inverse Proportion?: It takes 4 kids 12 hours to complete a project. How long would it take 8 kids to do the same job, working at the same rate? What is the answer?
    Inverse Proportion, 6 hours
  • In the statement: 17% of 100 is 17, what is the 17?
    Percent Value
  • What is compound interest?
    Interest that is calculated based on the initial amount as well as the accumulated interest
  • Describe the Quotient Rule in exponents when the base numbers are the same and the exponents are different. Provide an example
    Keep the base number and subtract the exponents, answers may vary