1. The length of a wall is 12m more than its width. If the area of the wall is less than 50m², what could be its length? 2. The length of a garden is 5m longer than its width and the area is 14m2. How long is the garden? 3. Mang Juan owns a rectangular lot. The perimeter of the lot is 90m and its area is 450m2. What are the dimensions of it? 4. A rectangular garden has an area of 132m2 and a perimeter of 46m. What equation would describe the situation? 5. Jenny has two daughters. The age of the older daughter is 5 more than the age of the younger. The product of their ages is 104. How old is the daughter?
pls pahelp po need napo brainliest ko at verified sa maayos na answer
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Answer:
since all are rectangles, we'll use common variables to represent area A, perimeter P, length x, and width y and take note that...
A = xy, and P = 2x + 2y
1. xy = 350 and 2x + 2y = 90
2. xy = 240 and 2x + 2y = 64
3. xy = 160 and x = 3 + 2y
4. x = 3 + 3y and xy = 126
there are 2 equations, 2 unknowns in each number... once you substitute one equation to the other... you can have a quadratic equation either in x (length) or y (width) variable... you can use the quadratic formula to solve either length x or width y... discard negative answer... choose only positive answers.
Step-by-step explanation: