Ans: 93
Explanation:
The following information is given in the question:
1) Total of 209 salads and drinks.
2) salads for $6.50 each and drinks for $2.00 each; and total revenue was <span>$836.50
Now let us assign variables to the following entities:
1) Salad = S
2) Drinks = D
From the information given above,
1. S + D = 209 (total number of salads and drinks) -- (A)
2. 6.50S + 2.0D = 836.50 (total revenue equation) -- (B)
From equation (A):
D = 209 - S
Substitute the above equation in (B)
(B) => 6.5S + 2(209 - S) = 836.5
=> 6.5S + 418 - 2S = 836.5
=> 4.5S = 418.5
=> S = 93
Ans: Salads sold that day = 93.
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The type of statistical study that the school is conducting can be referred to as: a Prospective Observational Study.
Prospective Observational Study is a type longitudinal observational study where the research does not manipulate the research subjects but simply observe and collect data of the research subjects as their characteristics changes over time going forward.
Therefore, the type of statistical study that the school is conducting can be referred to as: a Prospective Observational Study.
Learn more about Prospective Observational Study on:
brainly.com/question/9560034
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Malik can make 2 pumpkin breads and 6 banana breads.
Explanation:
Indirect cross-contamination - where something helps the organisms move from one place to another. We call these 'vehicles' of contamination. Just as you would get in your car or on a bus to travel from one place to another, micro-organisms will hop on to something to travel from raw to cooked food.