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11 August, 00:22

Teacher-Led Station

CRM 1.1 - Lesson 1

The school store sells pencils for $0.30 each, hats for $14.50 each, and binders for $3.20 each. Elena

would like to buy 3 pencils, a hat, and 2 binders. She estimated that the cost will be less than $20.

Do you agree with her estimate? Explain your reasoning.

Estimate the number of pencils could she buy with $5. Explain or show your reasoning.

+5
Answers (2)
  1. 11 August, 02:12
    0
    no n 16

    Step-by-step explanation:

    cost for 3 pencils, a hat, and 2 binders

    = 3*0.3+14.5+2*3.2

    = $21.8 > $20

    so estimate not good

    5/0.3=16.6 ...

    so she can buy 16 pencils
  2. 11 August, 04:19
    0
    Step-by-step explanation:

    Yes, her estimate is not good because one hat is $14.50 and 2 binders are$3.20*2=^$6.40. Those two items combined is over $20. The pencils will put the total further over $20.

    Pencils are $0.30 each. So 10 pencils will cost $3.

    $5 - $3 = $2

    The remaining $2 is enough for 6 more pencils.

    So she could buy 10+6 = 16 pencils with $5.
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Home » Mathematics » Teacher-Led Station CRM 1.1 - Lesson 1 The school store sells pencils for $0.30 each, hats for $14.50 each, and binders for $3.20 each. Elena would like to buy 3 pencils, a hat, and 2 binders. She estimated that the cost will be less than $20.
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