suatu persegi panjang memiliki panjang sisi 15cm dan lebar 10cm.keliling persegi panjang tersebut adalah

Jack mows 1/3 of the lawn each hour. Jane mows 1/4 of the lawn each hour.
Working together, they mow (1/3 + 1/4) of the lawn each hour.
In order to add the fractions, you need a common denominator. 12 will work:
(1/3 lawn/hour + 1/4 lawn/hour) = (4/12 + 3/12) = 7/12 lawn/hour.
This rate of work produces 12/7 hour/lawn .
12/7 hour = 1 hour 42 minutes 51.4 seconds

Answered by AL2006 | 2024-06-10

[\frac{1}{3}+\frac{1}{4}=\frac{1}{x}\ \frac{4}{12}+\frac{3}{12}=\frac{1}{x}\ \frac{7}{12}=\frac{1}{x}\ 7x=12\ x=\frac{12}{7}\hbox { h}=1\hbox{ h }42\hbox{ min } 51.43 \hbox{ s}
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Answered by konrad509 | 2024-06-10

Jack and Jane can mow the lawn together in about 1 hour and 43 minutes. Jack's rate is 1/3 of the lawn per hour, while Jane's is 1/4. Combined, they can mow at a rate of 7/12 of the lawn per hour, leading to this total time when working together.
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Answered by AL2006 | 2024-12-24

DiketahuiPanjang 15 cmLebar 10 cmDitanyaKeliling persegi panjangDijawab[tex] = 2 \times(15 + 10) \\ = 2 \times 25 \\ = 50[/tex]KesimpulanMaka jawabannya 50 cm.

Answered by aquila0152 | 2025-07-07