Fernando invested money in a –yr CD (certificate of deposit) that returned the equivalent of simple interest. He invested less in a –month CD that had a simple interest return. If the total amount of interest from these investments was , determine how much was invested in each CD.

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

yx = 36

step-by-step explanation:

cos f = opposite side/ hypotenuse

cos f = yw / yx

we know cos f = 4/9 and yw =16

4/9 = 16/yx

multiply each side by yx

4/9 yx = 16/ yx * yx

4/9 yx = 16

multiply each side by 9/4

9/4 * 4/9 yx = 16 *9/4

yx = 36