Question

20 points please help - geomtry

Answer 1

Answer:

x = 7 units

Step-by-step explanation:

Write and solve an equation of ratios, as follows:

   5 cm                 3 cm

------------------ = ------------------------

(40 + 5) cm      (3 + 2x + 10) cm

This simplifies to:

  5             3

-------- = -----------

  45       2x + 13

Solve for x.  Cross-multiplying, we get:

10x + 65 = 135, or x = 7

So x = 7 units.