Jawaban:
57 dan 19
Penjelasan dengan langkah-langkah:
2 × (5x+7) + (2x-1) = 152
2 × (7x+6) = 152
14x + 12 = 152
14x = 152-12
14x= 140
x = 10
panjang = 5x+7 = 5(10)+7=57
lebar = 2x-1 = 2(10)-1= 19
semoga membantu
Mencari nilai x
[tex] \sf keliling = 2p + 2l \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \sf 152 = 2(5x + 7) + 2(2x - 1) \\ \sf 152 = 10x + 14 + 4x - 2 \: \: \: \: \: \: \\ \sf 152 = 14x + 12 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \sf 152 - 12 = 14x \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \sf 140 = 14x \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \sf x = \frac{140}{14} \: \: \: \: \: \: \: \: \\ \sf x = 10 \: cm \: \: \: \: [/tex]
[tex] \sf Panjang = (5x + 7) \: \: \: \: \: \: \: \: \\ \sf Panjang = (5(10) + 7)) \\ \sf Panjang = (50 + 7) \: \: \: \: \: \: \: \\ \sf Panjang = 57 \: cm \: \: \: \: \: \: \: \: \: \: \: \: [/tex]
[tex] \sf Lebar = (2x - 1) \: \: \: \: \: \: \: \\ \sf Lebar = (2(10) - 1)) \\ \sf Lebar = (20 - 1) \: \: \: \: \: \: \: \: \\ \sf Lebar = 19 \: cm \: \: \: \: \: \: \: \: \: \: \: \: \: [/tex]
Panjang dan lebar 57 cm dan 19 cm
[tex]\huge\tt\color{FF6666}{I}\color{FFB266}{t}\color{B2FF66}{s}\color{66FF66}{M}\color{66FFFF}{e}\color{66B2FF}{A}\color{6666FF}{l}\color{B266FF}{i}\color{FF66FF}{y}\color{FF66B2}{a}\color{FF9999}{♡}\color{FFCC99}{♡}[/tex]
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Verified answer
Jawaban:
57 dan 19
Penjelasan dengan langkah-langkah:
2 × (5x+7) + (2x-1) = 152
2 × (7x+6) = 152
14x + 12 = 152
14x = 152-12
14x= 140
x = 10
panjang = 5x+7 = 5(10)+7=57
lebar = 2x-1 = 2(10)-1= 19
semoga membantu
Jawaban:
Penyelesaian :
Mencari nilai x
[tex] \sf keliling = 2p + 2l \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \sf 152 = 2(5x + 7) + 2(2x - 1) \\ \sf 152 = 10x + 14 + 4x - 2 \: \: \: \: \: \: \\ \sf 152 = 14x + 12 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \sf 152 - 12 = 14x \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \sf 140 = 14x \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \sf x = \frac{140}{14} \: \: \: \: \: \: \: \: \\ \sf x = 10 \: cm \: \: \: \: [/tex]
Mencari Panjang
[tex] \sf Panjang = (5x + 7) \: \: \: \: \: \: \: \: \\ \sf Panjang = (5(10) + 7)) \\ \sf Panjang = (50 + 7) \: \: \: \: \: \: \: \\ \sf Panjang = 57 \: cm \: \: \: \: \: \: \: \: \: \: \: \: [/tex]
Mencari Lebar
[tex] \sf Lebar = (2x - 1) \: \: \: \: \: \: \: \\ \sf Lebar = (2(10) - 1)) \\ \sf Lebar = (20 - 1) \: \: \: \: \: \: \: \: \\ \sf Lebar = 19 \: cm \: \: \: \: \: \: \: \: \: \: \: \: \: [/tex]
Panjang dan lebar 57 cm dan 19 cm
[tex]\huge\tt\color{FF6666}{I}\color{FFB266}{t}\color{B2FF66}{s}\color{66FF66}{M}\color{66FFFF}{e}\color{66B2FF}{A}\color{6666FF}{l}\color{B266FF}{i}\color{FF66FF}{y}\color{FF66B2}{a}\color{FF9999}{♡}\color{FFCC99}{♡}[/tex]