Brian is tiling a patio and ran out of tiles. The width of the remaining area of ⅔ yard. The length of the remaining area is 4 yards. What is the area Brian has left to tile?

Area of the remaining patio = 2.67 square yards

Step-by-step explanation:

Width of the remaining area of the patio = yards

Length of the remaining area of the patio = 4 yards

Since, area of the remaining area of the rectangular patio

= Length × Width

=

=

= 2.67 square yards

Therefore, area of the remaining area of the patio = 2.67 square yards

We have a system here, letting C = Claire's age and D = David's age, 



Substituting C=2D into the 2nd equation,

C+D = 9

2D+D = 9

D = 3

Substituting D=3 back into the first equation,

C=2D

C=2*3

C=6

Therefore Claire is 6 and David is 3. 

Hope that helped!

~Cam943