Laurie needs at least 40 pounds of topsoil for a new flower bed. Each bag of topsoil is 200 ounces. Laurie determines that if she buys 3 bags of topsoil she will have enough for the flower bed. Is Laurie correct? Why or why not?
First, we need to convert 40 pounds to ounces. There are 16 ounces in 1 pound, so 40 pounds is equal to 640 ounces (40 x 16 = 640).
If one bag of topsoil is 200 ounces, then three bags would be 600 ounces (200 x 3 = 600).
Since 600 ounces is less than 640 ounces, Laurie would not have enough topsoil with just three bags. She would need at least four bags (800 ounces) to have enough topsoil for the flower bed.
Therefore, Laurie is not correct. She would need to purchase at least four bags of topsoil to have enough for the flower bed.