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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Answer:
Could you describe your question more? I think you forgot to attach a picture.
Explanation:
Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object.
The methods of sensing are based on electromagnetic energy released or reflected from Earth's surface at some range above the earth. Remote sensors can be either passive or active depending upon the source of electromagnetic energy.
Earth's surface and atmosphere may involve the use of any of the instruments depending on the type of research to be done.
There are mainly two types of instruments used, passive and active instruments, below are some of the instruments used;
Ozone and Aerosol LiDAR. Radar Wind Profiler, Radiometer, Imaging Radiometer, Spectrometer, Spectroradiometer, Radar (Radio Detection and Ranging), Scatterometer, Lidar (Light Detection and Ranging), Laser Altimeter, SAOZ Instrument.
Is there more to this question?? if so i can assist you.