Shown below are the steps a student took to solve the simple interest formula A = P(1 + rt) for r.

uppercase A = uppercase P (1 + r t). uppercase A = uppercase P + r t. uppercase A minus uppercase P = r t. r = StartFraction (uppercase A minus uppercase P) Over t End Fraction

Shown below are the steps a student took to solve the simple interest formula A = P(1 + rt) for r.

uppercase A = uppercase P (1 + r t). uppercase A = uppercase P + r t. uppercase A minus uppercase P = r t. r = StartFraction (uppercase A minus uppercase P) Over t End Fraction

Explain the algebraic error in the student’s work. Then, state how the equation r = StartFraction (uppercase A minus uppercase P) Over t EndFraction can be modified to produce the correct result.

Question

Shown below are the steps a student took to solve the simple interest formula A = P(1 + rt) for r.

uppercase A = uppercase P (1 + r t). uppercase A = uppercase P + r t. uppercase A minus uppercase P = r t. r = StartFraction (uppercase A minus uppercase P) Over t End Fraction

Shown below are the steps a student took to solve the simple interest formula A = P(1 + rt) for r.

uppercase A = uppercase P (1 + r t). uppercase A = uppercase P + r t. uppercase A minus uppercase P = r t. r = StartFraction (uppercase A minus uppercase P) Over t End Fraction

Explain the algebraic error in the student’s work. Then, state how the equation r = StartFraction (uppercase A minus uppercase P) Over t EndFraction can be modified to produce the correct result.

jhonyy9 · Answer

so when you distribute parentheses you need multiplie the term in front of parentheses by every term inside parentheses - check it please in the first step - the student made it in this way ?