265. The perimeter of a rectangle is 58 meters. The width of the
rectangle is five meters less than
the length. Find the length and the
width of the rectangle.

L = 17 m, W = 12 m

Explanation:

W = (L - 5) m

P = 2(L + W) = 58 m

Substitute W = L - 5 from the first equation into the second equation and get L:

2[L + (L - 5)] = 58

2(2L - 5) = 58

2L - 5 = 58/2 = 29

L = (29 + 5)/2 = 17

Then W = L - 5 = 17 - 5 = 12

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg