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4 February, 12:48

Leila is saving money to buy a bike that costs

$

125

. She has

$

60

and will save an additional

$

5

each week. In how many weeks will she have enough money to buy the bike?

write an equation, let w represent the number of weeks

+4
Answers (2)
  1. 4 February, 14:13
    0
    125=60 (5x)

    x=13 ...
  2. 4 February, 14:54
    0
    Equation: 5w + 60 = 125

    Answer: 13 weeks

    Step-by-step explanation:

    Cost of bike: $125.

    She has: $60.

    (money she has) + (all money saved weekly) = (cost of bike)

    60 + (all money saved weekly) = 125

    In 1 week she saves $5.

    In 2 weeks, she saves $5 * 2

    In 3 weeks, she saves $5 * 3

    In w weeks, she saves $5 * w = 5w.

    "all money saved weekly" is 5w, so we put that in our equation.

    60 + 5w = 125

    Equation: 5w + 60 = 125

    Now we solve the equation for w.

    5w + 60 = 125

    Subtract 60 from both sides.

    5w = 65

    Divide both sides by 5.

    w = 13

    Answer: 13 weeks
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