Ms. Walsh is buying calculators for her class. The table shows the total cost based on the number of calculators purchased.
1
Number of Calculators, n
2
3
4
Cost ($).
11
22
33
44
If Ms. Walsh spent a total of $429, how many calculators did she buy? Use numbers and words to
complete the explanation and give your answer.
In. Since you know Ms. Walsh spent a
You found a pattern and wrote the equation c =
total of $429, you can substitute 429 for? and solve for n.
429=
n =
So, she bought
calculators