Is 125 because u need to take the 5 and add 3 on the top
If y varies inversely as x. Using the coordinates (5, 3) and (x, 2.5), find the missing value x.
1 answer:
Answer:
(6, 2.5 )
Step-by-step explanation:
Given y varies inversely as x then the equation relating them is
y = ← k is the constant of variation
To find k substitute the coordinate point (5, 3 ) into the equation, that is
3 = ( multiply both sides by 5 )
15 = k
y = ← equation of variation
Using (x, 2.5 ) with y = 2.5 , then
2.5 = ( multiply both sides by x )
2.5x = 15 ( divide both sides by 2.5 )
x = 6
Thus point is (6, 2.5 )
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answer: 10 map squares
Step-by-step explanation:
There are 10 map squares that did survive more than 29 pant species because from the given diagram we can see that the plant species above 29 are spotted in 4 map squares ( i.e. from spot 30 to 39 ) and 6 map squares ( i.e. from 30 to 49 )
hence the total number of map squares = 4 + 6 = 10 map squares
