alleryStart learning →Solve A = P + Prt for t.
At is A plus P, over Pr
Bt is P minus A, over Pr
Ct is A minus P, over Pt
Dt is A minus P, over Pr
Answer & Solution
Correct answer: D. t is A minus P, over Pr
1. The term holding t is Prt, so isolate that term first.
2. Subtract P from both sides to get A minus P equal to Prt.
3. Divide both sides by Pr to get t equal to A minus P, all over Pr.
4. Dividing by Pt would leave t on both sides, so nothing would be solved.
_Source: OpenStax Intermediate Algebra (CC BY 4.0), Ch 2 "Solving Linear Equations", section 2.3 Solve a Formula for a Specific Variable_
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