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Nadya [2.5K]
3 years ago
9

When do you use ( P ) in simple interest word problems? i always get Interest ( I ) mixed up with .. i know HOW to solve it but

just not which place the
( principle and interest value ) in the formula to place it..

formula, I = Prt.

Example: Bob got a loan of $1700.00 loan for 2 years. He paid $90 in interest. what was the interest rate?
Mathematics
1 answer:
alexandr1967 [171]3 years ago
8 0
90/2 = 45
45/1700 = 0.02647
0.02647 x 100 = 2.64
2.46%
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some examples why metric is nice

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and also this exerpt from a book
"<span>In metric, one milliliter of water occupies one cubic centimeter, weighs one gram, and requires one calorie of energy to heat up by one degree centigrade which is 1 per cent of the difference between its freezing point and its boiling point. An amount of hydrogen weighing the same amount has exactly one mole of atoms in it. Whereas in the American system the answer to <em>'How much energy does it take to boil a room-temperature gallon of water?'</em> is go **** yourself because you can't directly relate any of those quantities "</span>
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