Agrocer sells oranges in bags. each empty bag weighs 2.5 ounces and each orange weighs 7.2 ounces. khalil buys a bag of oranges that weighs 60.1 ounces. which equation can be used to find x, the number of oranges in the bag? a.) 7.2+x=60.1 b.)2.5x+7.2=60.1 c.)60.1-x=2.5+7.2 d.)2.5+7.2x=60.1

D, 2.5 + 7.2x = 60.1. Notice that 2.5 is a constant in this problem, while 7.2 is a variable that changes based on the number of oranges placed in the bag.

You could think of this problem in this way. No matter how many oranges we put in the bag, the weight of the bag will always contribute 2.5 ounces to the total weight of the bag with oranges in it. If 7 oranges are placed in the bag, the bag itself weighs 2.5 ounces. If 14 oranges are placed in the bag, the bag itself weighs 2.5 ounces.

However, the weight of the bag filled with oranges will be changed by the number of oranges placed in the bag. A bag with 14 oranges will weigh much more than a bag with 7 oranges, as each orange contributes a weight of 7.2 ounces to the overall weight of the bag. Given that the number of oranges is represented by the variable , we can say that the oranges contribute a weight of to the bag.

Thus, the weight of our bag is , or D.

i am positive the answer is D  

Step-by-step explanation:

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.