Terry writes the ratio x/9 = y/18 to help her reduce the size of a two-dimensional shape. If the new value of y is 5 units, what will be the value of x?
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1 point
10 units
2.5 units
5/18 units
0.5 units
In the original ratio x/9 = y/18, if the new value of y is 5 units, we can set up a proportion:
x/9 = 5/18
Cross multiply to solve for x:
18x = 45
x = 45/18
x = 2.5 units
Therefore, the value of x will be 2.5 units.
The correct answer is 2.5 units.