Write and solve a system of equations for each word problem.Define your Variables
Ryan and Kari spend 28 hours building a tree house.Ryan worked 4 hours more than Kari. How many hours did each work.
+181 R = hours Ryan worked
K = hours Kari worked
R + K = 28
R = K + 4 or R - K = 4
combining the two equations:
2R = 32
R = 16
Ryan worked 16 hours, so Kari worked 12 hours.
+1107 Ryan: 16 hours
Kari: 12 hours
Find 2 numbers that equal 28 (14 + 14) Take 2 away from one, then add that 2 to the other one(14 - 2 = 12. (other): 14 + 2 = 16)
Boom
Shaka
Laka
+181 R = hours Ryan worked
K = hours Kari worked
R + K = 28
R = K + 4 or R - K = 4
combining the two equations:
2R = 32
R = 16
Ryan worked 16 hours, so Kari worked 12 hours.
+1107 Guest, you didn't need to post yours. Lol. Mine was correct, and so was yours. I posted mine first though.
+181 R = hours Ryan worked
K = hours Kari worked
R + K = 28
R = K + 4 or R - K = 4
combining the two equations:
2R = 32
R = 16
Ryan worked 16 hours, so Kari worked 12 hours.
edit: I know your answer was right, but you didn't show all the steps, nor a system of equations. Some teachers can be very picky about showing the work.
+1107 Have you thougt of signing up on the website Guesty?
Edited: Have you thought of signing up on the website Guesty?
