Ebony bought a 5-yr Treasury note that paid the equivalent of 2.8% simple interest. She invested $5000
more in a 10-yr bond earning 3.6% than she did in the
Treasury note. If the total amount of interest from
these investments was $5300, determine the amount of
principal for each investment.

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.

1. 5/82.95% is better than 7/8