A rectangular patio

A rectangular patio measures 20 ft by 30 ft. By adding x feet to the width and x feet to the length, the area is doubled. Find the new dimensions of the patio.

Result

c =  30 ft
d =  40 ft

Solution: Checkout calculation with our calculator of quadratic equations. Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! To solve this example are needed these knowledge from mathematics:

Looking for help with calculating roots of a quadratic equation? Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

Next similar examples:

1. Rectangle - area, perimeter The area of a rectangular field is equal to 300 square meters. Its perimeter is equal to 70 meters. Find the length and width of this rectangle.
2. The length The length of a rectangle is 6 meters less than twice the width. If the area of the rectangle is 216 meters, find the dimensions of the rectangle.
3. Rectangle Calculate area of the rectangle if its length is 12 cm longer than its width and length is equal to the square of its width.
4. A photograph A photograph will stick to a white square letter with a x cm length. The photo is 3/4 x cm long and 20 cm wide than the width of the paper. The surface of the remaining paper surrounding the photograph is 990 cm2. Find the size of paper and photo.
5. Trapezium The lengths of a parallel sides of a trapezium are (2x+3) and (x+8) and the distance between them is (x+4). if the area of the trapezium is 590 , find the value of x.
6. Roots Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: ?
7. Solve 3 Solve quadratic equation: (6n+1) (4n-1) = 3n2
8. Theorem prove We want to prove the sentence: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started? Find the roots of the quadratic equation: 3x2-4x + (-4) = 0.
10. Equation Equation ? has one root x1 = 8. Determine the coefficient b and the second root x2.
11. Discriminant Determine the discriminant of the equation: ?
12. Tubes Iron tubes in the warehouse are stored in layers so that each tube top layer fit into the gaps of the lower layer. How many layers are needed to deposit 100 tubes if top layer has 9 tubes? How many tubes are in bottom layer of tubes?
13. Equation with abs value How many solutions has the equation ? in the real numbers? Quadratic equation ? has roots x1 = 80 and x2 = 78. Calculate the coefficients b and c. In cinema are 1656 seats and in the last row are 105 seats , in each next row 3 seats less. How many are the total rows in cinema? Solve combinatorics equation: V(2, x+8)=72 Solve this equation: x + 5/x - 6 = 4/11