Bella made a fruit salad with 3/10 of a pound of melon and 1/5 of a pound of berries. how many pounds of fruit did bella use in all?

The answer that i got was 8/3

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.