SOLUTION: The ratio cubes to spheres in a geometry box is 16 to 9. If there are 225 cubes and spheres in the geometry box altogether then how many cubes are there?

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Question 534017: The ratio cubes to spheres in a geometry box is 16 to 9. If there are 225 cubes and spheres in the geometry box altogether then how many cubes are there?
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Try this:
Cubes to (cubes+spheres) = 16 to 25. Let x = number of cubes in 225 cubes plus spheres.
16%2F25+=+x%2F225 Solve for x.
16%28225%29%2F25+=+x
x+=+144
There are 144 cubes in the box.
Check:
16%2F9+=+144%2F81 Divide the numerator and denominator of the second fraction by 9.
16%2F9+=+16%2F9