Molly bought 10 bags of the same dog food. She had a coupon for $5. She spent a total of$65. How much money was each of bags dog
2 answers:
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For this case we must find the unit cost (dollars per pound) of each site and then compare.
We take into account that:
1kg equals 2.205 pounds
So, we have:
Site 1:
Site 2:
So, the unit cost is:
Thus, the best deal is on site 2.
ANswer:
The best deal is on site 2.
<u>We know that (a + b)(a - b) = a² - b²:</u>
Answer: LCD = ( x + 1) (x - 1)