Question

An online store sells two types of speaker docks for smartphones. The higher-priced speaker dock sells for $190 and the lower-priced speaker dock sells for $80. Last week the store sold three times as many lower-priced speaker docks as higher-priced speaker docks. Combined sales totaled $3,440. How many of each did it sell?

Answer 1

`190x +80(3x) = 3440`
x represents how many are sold. then multiply 80×3

`80 * 3 = 240`
then add your x together

`190x + 240x = 430x`
then you must divide your x by 3440

`3440 / 430 = 8`
8 is how many higher-priced speakers take you 8 and multiple it by 3 to get how many lower-priced speakers

`8 * 3 = 24`
you have 24 low priced speaker and 8 high priced speakers.