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Use the formula for simple interest, I = Prt, to find the indicated quantity.I = $72; r =6%; t = 6 months; P= ?

Sagot :

Step 1:

Write the interest formula

[tex]\begin{gathered} \text{I = Prt} \\ I\text{ = \$72} \\ r\text{ = 6\% = }\frac{6}{100}\text{ = 0.06} \\ t\text{ = 6 months = }\frac{6}{12}\text{ = 0.5} \end{gathered}[/tex]

Step 2:

Substitute in the formula to find P

[tex]\begin{gathered} 72\text{ = P }\times\text{ 0.06 }\times\text{ 0.5} \\ 72\text{ = 0.03P} \\ P\text{ = }\frac{72}{0.03} \\ \text{P = \$2400} \end{gathered}[/tex]

Final answer

P = $2400

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