OpenStax, Prealgebra 2e §9.7 Solve a Formula for a Specific Variable · Exercise 25 · Algebra · Algebra word problems

Solve a Formula for a Specific Variable · Exercise 25

Use the formula $I = P r t .$

Solve for the principal, $P$ for:
ⓐ $I = \$ \text{5},\text{480} $,$ r = \text{4}\% $,$ t = 7 \text{years}$
ⓑ in general

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OpenStax, Prealgebra 2e · §9.7 Solve a Formula for a Specific Variable · Exercise 25

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