х - длина
у - ширина
х + у = 9,6
Р = 2(х+у) = 2 × 9,6 = 19,2 см
[tex]x + y = 9.6 \\ y = \frac{3}{5} x \\ \\ x + \frac{3}{5} x = 9.6 \\ 1.6x = 9.6 \\ x = 9.6 \div 1.6 \\ x = 6 \\ \\ y = \frac{3}{5} \times 6 = 0.6 \times 6 = 3.6[/tex]
S = xy = 6 × 3,6 = 21,6 см²
Ответ:
х довжина
х*3//5 ширина
[tex]x + \frac{3}{5}x = 9.6 \\ \frac{5}{5} x + \frac{3}{5} x = 9.6 \\ \frac{8}{5} x = 9.6 \\ x = \frac{96}{10} \div \frac{8}{5} = \frac{96}{10} \times \frac{5}{8} = \frac{12}{2} = 6 \\ 6 \times \frac{3}{5} = 3.6 \\ p = (6 + 3.6) \times 2 = 19.2 \\ s = 6 \times 3.6 = 21.6[/tex]
P=19.2см, S=21.6см^2
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Answers & Comments
х - длина
у - ширина
х + у = 9,6
Р = 2(х+у) = 2 × 9,6 = 19,2 см
[tex]x + y = 9.6 \\ y = \frac{3}{5} x \\ \\ x + \frac{3}{5} x = 9.6 \\ 1.6x = 9.6 \\ x = 9.6 \div 1.6 \\ x = 6 \\ \\ y = \frac{3}{5} \times 6 = 0.6 \times 6 = 3.6[/tex]
S = xy = 6 × 3,6 = 21,6 см²
Ответ:
х довжина
х*3//5 ширина
[tex]x + \frac{3}{5}x = 9.6 \\ \frac{5}{5} x + \frac{3}{5} x = 9.6 \\ \frac{8}{5} x = 9.6 \\ x = \frac{96}{10} \div \frac{8}{5} = \frac{96}{10} \times \frac{5}{8} = \frac{12}{2} = 6 \\ 6 \times \frac{3}{5} = 3.6 \\ p = (6 + 3.6) \times 2 = 19.2 \\ s = 6 \times 3.6 = 21.6[/tex]
P=19.2см, S=21.6см^2