There are 170000 cows. 10 percent of them die each year. How many cows will be left after 20 years have passed?
2 answers:
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well, in short, the students and chaperones are at a 2 : 9 ratio, and we know there are 171 students, how many chaperones then, so long they maintain a 2:9 ratio?
Which expression is equivalent to the given expression?
15(12-x)
A.
hope this help
15(12-x)
A.
hope this help
As shown in the image, we have a 30 degree angle and x, which is what we want. By doing tan30, we can find x, so tan30=x/70 and 70*tan30=x= 70*sqrt(3)/3. 120-x=height of first tower = 120-(70*sqrt(3)/3) = roughly 79.59
