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How many quarts is L?
1 L = 1.057 qt.
The width of a rectangle is 15cm less than the leght the perimeter is 98cm find the rectangle's dimensions?
Suppose length is L cm. Then Width = L-15 cm Perimeter = 2*(W+L) = 2*(L-15 + L) = 2*(2L - 15) = 4L - 30 cm So 4L - 30 = 98 so that 4L = 128 and then L = 32 cm Then W = L - 15 = 32- 15 = 17 cm. So the rectangle is 32 cm * 17 cm
How many liters is in 2 quarters of water?
There are 2.25 litres in 2 quarts of a gallon.------------------------------------------The above is for the Imperial Quart, used in Britain.For a US quart, 1 quart = 0.946 L, so 0.946 x 2 = 1.892 L
What is the perimeter of a rectangular polygon with dimensions of 13 yards by 15 yards?
To find the perimeter you have to 2 x L + 2 x W, 13 being you L and 15 your W. 13 x 2=26, 15 x 2=30. 30+26 is 56! Your answer would be 26.......
How do you find the dimensions using the formula to find the area of the room?
Perimeter = P = 2 (Length) + 2(Width) = 2L + 2W Area = A = (Length)(Width) = LW Rearrange the equation for perimeter to find W: P = 2L + 2W = 2( L + W) (P/2) = L + W W = (P/2) - L If you substitute this value into the Area equation, A = LW = L( (P/2) - L) = (PL/2)-(L^2) A = -L^2 + (PL/2) Or, rearranging into standard form, L^2 -(P/2)L+A=0 Now you can use the quadratic formula to solve for L. Remember that for an equation in standard form, aX^2 + bX + c = 0 x = (-b +/- sqrt(b^2 - 4ac)) / 2a So our equation (where x is L) has a = 1 b = (P/2) c = A Which gives L = (-(P/2) +/- sqrt((P/2)^2 - 4A)) / 2 Now, given perimeter and area, you can solve for the dimensions. As an example, P = 15, A = 14 L = (-(15/2) +/- sqrt((15/2)^2 - 4*14)) / 2 L = (-7.5 +/- .5) / 2 = -8 / 2 OR -7 / 2 L = 4 OR 3.5 (You can change the length to a positive number because when measuring length, positive or negative just depends on the direction) You get 2 answers due to the way the quadratic formula works. However, it makes sense, because you would get two different answers depending on whether the Length or Width of your rectangle was the long dimension. So, choosing L=4, the dimensions of the recangle would be 4 x 3.5 . As a check, A = LW = (4)(3.5) = 14 p = 2L + 2W = 2(4) + 2(3.5) = 8 + 7 = 15
