Marco and jess fold 60 napkins altogether. jess folds 20 more than marco. how many napkins do they each fold?

Marco folds 20 Jess folds 40

Step-by-step explanation:

m=napkins marco folds and j= napkins jess folds

Set up a system of equations

60=m+j

m+20=j

Solve for one variable then substitute it back into equation to solve for its value

m=60-j

(60-j) +20= j

2j=80

j=40

Substitute j to find m

60=40+m

m= 20

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.