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MPM1D
Ms. Kueh
Modelling with Formulas Day 2
Example 1 The Cost of a pen is 3 times the cost of a pencil. The cost of 4 pencils and 3 pens is
$9.75. What is the cost of a pencil?
Example 2 Aretha has $0.85 in nickels and dimes in her piggy bank. She has 2 more nickels than
dimes. How many nickels and dimes does she have?
TIPS Practice
A box contains 140 dimes and nickels. The total value is $11.15. How many dimes and how
many nickels are there?
Homework: Handout

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