Mrs. Hara wants to purchase blue light blocking glasses for her family. COMPANY 1 sells the glasses for 40.00 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
With company 1, each pair of glasses costs $40.00.
With company 2, a set of 4 glasses costs $140/4 = $<<140/4=35.00>>35.00 per pair of glasses.
Therefore, Mrs. Hara will save $40.00 - $35.00 = $<<40-35=5.00>>5.00 per pair of glasses by using company 2. Answer: \boxed{5}.
To calculate how much Mrs. Hara will save per pair of glasses if she uses company 2, we need to compare the price per pair of glasses between the two companies.
Company 1 sells the glasses for $40 each, so the price per pair is $40.
Company 2 sells the glasses at 4 for $140. To calculate the price per pair, we divide the total price by the number of pairs. Since there are 4 glasses in each set, the price per pair is $140 / 4 = $35.
To determine how much Mrs. Hara will save per pair of glasses if she uses company 2, we subtract the price per pair from company 2 from the price per pair from company 1.
Therefore, Mrs. Hara will save $40 - $35 = $5 per pair of glasses if she uses company 2.
To calculate how much Mrs. Hara will save per pair of glasses if she uses company 2, we need to determine the cost per pair for each company.
Let's first calculate the cost per pair for company 1. The glasses are sold for $40.00 each, so the cost per pair would be $40.00 x 1 = $40.00.
Next, let's calculate the cost per pair for company 2. The glasses are sold at 4 for $140.00, so the cost per pair would be $140.00 / 4 = $35.00.
Now, we can calculate the savings per pair if Mrs. Hara uses company 2. The savings per pair would be the difference between the cost per pair from company 1 and the cost per pair from company 2, which is $40.00 - $35.00 = $5.00.
Therefore, Mrs. Hara will save $5.00 per pair of glasses if she uses company 2.