Maths question. Btw the where is says area it should be in a square
Responses (2)
If 5 refers to a length of a rectangle, and 2x + 1 refers to the length of the other side of that rectangle, then we can write an equation:
(2x + 1) cm * 5 cm = 35 cm² ;; solve for x ;; divide by 5 cm
(2x + 1) cm = 7 cm ;; -1
2x cm = 6 cm ;; divide by 2 cm
x = 3
Check:
(2 * 3 + 1) cm * 5 cm = 7 cm * 5 cm = 35 cm².