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Variables, constants and coefficients

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  • A number that is directly infront of the variable, attached by multiplication, is a...
    coefficient
  • What is the coefficient? 6x + 7
    6
  • Write an expression for " a number d plus 3"
    d + 3 or 3 + d
  • Emma has d number of donuts. She gets 5 more from the store. Write an expression to show how many donuts Emma has.
    d + 5
  • What is the constant? 2x - 16
    16
  • Write an expression to show "3 times a number x plus 6"
    3x + 6
  • What are the coefficients? 12x + 5 - 6x
    12 and 6
  • Evaluate the expression when a = 5 and b = 2. 4a+3b
    26
  • Evaluate the expression when c = 2 and d = 6. 3(2c+d)
    30
  • Write an expression to show "4 more than 2 times a number x"
    4 + 2x or 2x + 4
  • It costs 3p + 2 to buy each pumpkin. p = the number of pumpkins purchased. How much does it cost to buy 6 pumpkins?
    3 (6) + 2 = $20
  • Evaluate the expression when d = 4 3d + 6
    18
  • Evan has c number of cookies. He bakes 5 more. He then splits the cookies among 2 friends. Write an equation to show how many cookies each friend gets.
    (c+5)/ 2
  • Evaluate the expression when a = 1 and b = 2. 4(2b + a)
    20
  • It costs 2s + 1 for every scoop of ice cream. s = the number of scoops of ice cream purchased. How much does it cost to buy 3 scoops of ice cream?
    2 (3) + 1 = $7
  • Write an expression for "2 times a number c plus 5"
    2c+5
  • A number that always stays the same is a...
    constant
  • Write an expression to show "18 divided by 2 times a number x"
    18 / 2x
  • Write an expression for "6 more than 3 times a number p"
    3p + 6
  • What is the variable? 2x + 12
    x
  • What is the constant? 12 - 2x
    12
  • An unknown number is a...
    variable
  • Ticket prices can be found by using the equation 3a + 2c where a = the number of adult tickets and c = the number of children tickets. How much would someone spend if they bought 2 adult tickets and 2 children tickets?
    3 (2) + 2 (2) = $10
  • Write an expression to show "16 less than 3 times a number x"
    3x - 16