A. org/growth/#/test-player 100%
Magda and Kara each bought a book. Magda's book cost $20. This was 4 times as much as Kara's book cost.
How much did Kara's book cost?
A. $4
B. $5
C. $16
D. $24
E $80

-1/2 +2

step-by-step explanation:

europa2433

europa2433

step-by-step explanation:

160

step-by-step explanation:

idk

i hope i

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.