Study

Chapter 6 Review

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  • make this percent into a decimal: 3%
    0.03
  • How do you write a % as a decimal
    divide by 100
  • 50% of 100 is what number?
    50
  • make this decimal into a percent: 0.06
    6%
  • Find the principal- I= $75; R= 3.75%; t= 2 years
    P= $1,000
  • find the RATE- I= $15; P = $150; t = 0.75 years
    r = 13.3%
  • find the sale price- Original Price: $5.50; mark up: 80%
    $9.90
  • How do you write a decimal as a percent?
    multiply by 100
  • find the interest: P= $800; r= 5%; t= 2 years
    I= $80
  • find the percent of change: 100 people to 75 people
    40% decrease
  • 75% of what number is 30?
    40
  • What is 30% of 50?
    15
  • find the mark up- Original Price: $3; Sale Price: $10
    233.3% mark up
  • find the percent of change: 5 books to 17 books
    240% increase
  • find the sale price- Original Price: $15; discounted by 30%
    $10.50
  • make this percent into a decimal: 75.3%
    0.753
  • find the new amount: 10 cars increased by 20%
    12 cars
  • find the new amount: 11 pens decreased by 50%
    5.5 pens
  • make this decimal into a percent: 3.54
    354%