SOLUTION: {{{drawing( 300, 300, -4, 6, -4, 6,
locate( -2, 3, 200 ),
locate( 1, -.5, 300 ),
line(0,0,0,5),
line(0,5,5,0),
line(5,0,0,0)
)}}}
The diagram shows the dime
Algebra.Com
Question 86090:
The diagram shows the dimensions of a triangular field next to a
school. To estimate the number of wildflowers growing in the field,
students counted a total of 36 flowers in a randomly selected
3-feet-by-4-feet rectangular section. Assuming the section is a
representative sample of the entire field, approximately how many
flowers are in the entire field?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
First lets find the area of the triangle
The area of a triangle can be found by this formula:
So if we have this trangle
We can clearly see that the base is 300 feet and the height is 200 feet
Now to find the area of this triangle, plug in base=300, height=200
Multiply 300 and 200 to get 60,000
Divide 60,000 by 2 to get 30,000
Now since there are an average of 36 flowers in a 3 by 4 foot patch (which is 12 square feet), we can find the rough estimate of how many flowers are in the whole patch. If there are 36 flowers for every 12 square feet, we can set up a proportion (or ratio) to find the number of flowers there are for 30,000 square feet
Start with the proportion where x is the number of flowers in a 30,000 square foot area
Multiply both sides by 30,000
Multiply
Multiply
Divide
So
This means there are 90,000 flowers in the 30,000 square foot patch
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