Ethan writes the ratio x/10 = y/20 to help him reduce the size of a two-dimensional shape. If the new value of y is 7 units, what will be the value of x?

Answer 1

To find the value of x, we can set up a proportion with the new value of y and solve for x.

x/10 = 7/20

Cross multiply:

20x = 70

Divide by 20 to isolate x:

x = 70/20

x = 3.5 units

Therefore, the value of x will be 3.5 units.