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In the total value of coins model, how is the total value of one type of coin found?
AAdd the number of coins to the value of each coin
BDivide the value of each coin by the number of coins
CSubtract the value of each coin from the number of coins
DMultiply the number of coins by the value of each coin
Answer & Solution
Correct answer: D. Multiply the number of coins by the value of each coin
1. The coin model relates three quantities: number, value, and total value.
2. Number is how many coins there are, and value is what each individual coin is worth.
3. Multiplying the number of coins by the value of each coin gives the total value of that pile.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 3 "Math Models", section 3.3 Solve Mixture Applications_
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