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5 votes
I=PRT used to calculate interest earned. How do I solve for T?

asked
User Shoki
by
8.4k points

1 Answer

5 votes

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Answer:

T = I/(PR)

Explanation:

Solve for T the same way you solve for the variable in any proportion: divide both sides of the equation by its coefficient.

I = PRT

I/(PR) = PRT/(PR)

I/(PR) = T

_____

Additional comment

Please note that parentheses are required around the factors of the denominator when you write this in plain text.

I/PR ≠ I/(PR)

I/PR = (I/P)R . . . . . the order of operations requires the division occur before the multiplication

If you write this by hand, or in typeset form, the horizontal fraction bar serves to group the factors of the denominator:


T=(I)/(PR)

answered
User Malber
by
9.1k points

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