Jamie opened a bank account with some initial amount of money. the account earns simple interest at a rate of 15% per year for 2 years. at the end of that time, the account has a value of $4,000. what was the original amount of money that jamie put in the account?

$3077

Step-by-step explanation:

answer: 180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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