Mrs. Hara wants to purchase blue light-blocking glasses for her family. company 1 sells the glasses for $40 each, and company 2 sells the same glasses at 4 for $140. How much will Mrs. Hara save, per pair of glasses, if she uses company 2?
A $100.00
B $5.00
C $75.00
D $20.00
To find out how much Mrs. Hara will save per pair of glasses, we first need to determine the price per pair for company 2.
Company 2 sells 4 pairs of glasses for $140, so each pair costs $140/4 = $<<140/4=35>>35.
Then we subtract the price per pair for company 2 from the price per pair for company 1 to find out the amount saved: $40 - $35 = $<<40-35=5>>5.
Therefore, Mrs. Hara will save $5 per pair of glasses if she uses company 2.
The correct answer is B $5.00.