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Magazine Problem 392
In the following exercises, solve the simple interest problem. Find the principal invested if \(\$ 660\) interest was earned in 5 years at an interest rate of 3\(\%\) .
Problem 393
In the following exercises, solve the simple interest problem. Find the interest rate if \(\$ 2,898\) interest was earned from a principal of \(\$ 23,000\) invested for 3 years.
Problem 394
In the following exercises, solve the simple interest problem. Kazuo deposited \(\$ 10,000\) in a bank account with interest rate 4.5\(\% .\) How much interest was earned in 2 years?
Problem 395
In the following exercises, solve the simple interest problem. Brent invested \(\$ 23,000\) in a friend's business. In 5 years the friend paid him the \(\$ 23,000\) plus \(\$ 9,200\) interest. What was the rate of interest?
Problem 396
In the following exercises, solve the simple interest problem. Fresia lent her son \(\$ 5,000\) for college expenses. Three years later he repaid her the \(\$ 5,000\) plus \(\$ 375\) interest. What was the rate of interest?
Problem 397
In the following exercises, solve the simple interest problem. In 6 years, a bond that paid 5.5\(\%\) earned \(\$ 594\) interest. What was the principal of the bond?
Problem 398
In the following exercises, write each sentence as a proportion. 3 is to 8 as 12 is to 32
Problem 399
In the following exercises, write each sentence as a proportion. 95 miles to 3 gallons is the same as 475 miles to 15 gallons.
Problem 400
In the following exercises, write each sentence as a proportion. 1 teacher to 18 students is the same as 23 teachers to 414 students.
Problem 401
In the following exercises, write each sentence as a proportion. \(\$ 7.35\) for 15 ounces is the same as \(\$ 2.94\) for 6 ounces.
