SOLUTION: A store stocks pine and spruce seedlings in approximately the ratio of 7:2. If they order 24 pines, how many spruce seedlings should they order? Round to the nearest whole number.

Algebra ->  Proportions -> SOLUTION: A store stocks pine and spruce seedlings in approximately the ratio of 7:2. If they order 24 pines, how many spruce seedlings should they order? Round to the nearest whole number.      Log On


   

Question 939003: A store stocks pine and spruce seedlings in approximately the ratio of 7:2. If they order 24 pines, how many spruce seedlings should they order? Round to the nearest whole number.
Answer by srinivas.g(540) About Me  (Show Source):
You can put this solution on YOUR website!
A store stocks pine and spruce seedlings in approximately the ratio of 7:2
let x be the no of spruce seedlings to be ordered
7:2 = 24:x
+7%2F2+++=24%2Fx
multiply with x on both sides
+%287%2F2%29%2A+x+++=%2824%2Fx%29%2Ax
+7x%2F2++=+24
multiply with 2 on both sides
+%287x%2F2%29+%2A2+=+24%2A2+
+7x+++=+48
divide with 7 on both sides
+7x%2F7+=+48%2F7
+x++=++6.85+
x= 7 ( rounding off to nearest whole number )
Result: no of spruce seedlings to be ordered = 7