SOLUTION: a garden 7 m by 12 m will be expanded by planting a border of flowers. the border will be ofthe same width around the entire garden and has an area of 92 square meter.
Algebra ->
Quadratic Equations and Parabolas
-> SOLUTION: a garden 7 m by 12 m will be expanded by planting a border of flowers. the border will be ofthe same width around the entire garden and has an area of 92 square meter.
Log On
Question 974231: a garden 7 m by 12 m will be expanded by planting a border of flowers. the border will be ofthe same width around the entire garden and has an area of 92 square meter.
You can put this solution on YOUR website! The 92 m^2 will be (7+x)(12+x) to accommodate the border
84+19x+x^2=92
x^2+19x-8=0
x= (1/2) -19+/- sqrt (361+32), and the minus root won't make sense.
x=(1/2) (-19)+19.8242=0.4121 m
7.4*12.4=91.76, so this is a reasonable answer.