$10,000 is invested at two different rates. $4,500 is invested at 4%, and the rest is invested at 5%. how much interest is earned at the end of one year? show all work for full credit.

Here is the solution of the given problem above.$10,000 = total amount$4,500 = 4% interest$5,500 = 5%? = amount of interest earned at the end of the yearSo first, let's get 4% of 4,500 which is $180Now, 5% of 5,500 which is $275Since the question did not specify if the interest is per month or per year, i will give the results based on the per month and per year.So per month x 12 months, in a year, the total would be 2,160 + 3, 300 so it will be $5,460.But if this interest is on a yearly basis, then the total would be $455.
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The skating rink rented 872 pairs of skates during april and may.why? : if the skating rink rented three times the pair of skates in april during may, they rented 654 skates. 218 x 3 = 654then, if they want to know how many they rented during both april and may, then you just add 654 (may) and 218 (april) to give you 872 pairs of skates for both months.654 + 218 = 872hope this !