In a fund-raising committee of 45 people, the ratio of men to women is 7:2. Find the
number of women required to join the existing committee so that the ratio of men to
women is changed to 5:4.

20 more women needs to join for the ratio to be 5:4.
7:2 = 45 people
45 decide 9=5people
7•5=35people (men)
7•2=10people (women)

35(men)
10+20=30(women)
35:30 = 5:4

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .

1+1=22×1=22-1=11-1=1duh