Answer:
8 higher-priced speaker and 24 lower-priced speaker docks are sold.
Step-by-step explanation:
Let x be the no. of higher-priced speaker sold
We are given that the store sold three times as many lower-priced speaker docks as higher-priced speaker docks.
So, the no. of lower-priced speaker sold = 3x
Cost of 1 higher-priced speaker dock = $190
Cost of x higher-priced speaker dock = $190x
Cost of 1 lower-priced speaker dock = $80
Cost of 3x lower-priced speaker dock = $80(3x)=$240x
So, total cost = 190x+240x=430x
We are given that Combined sales totaled $3,440.
So,
So,The no. of higher-priced speaker sold is 8
The no. of lower-priced speaker sold = 3x = 3(8) =24
Hence 8 higher-priced speaker and 24 lower-priced speaker docks are sold.