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Journal : Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika

OPTIMASI MATEMATIS KEUNTUNGAN HOME INDUSTRY PIA IBU SANDRA DI TOMBATU UTARA Gabriel E. W. Mosey; James U. L. Mangobi; Marvel G. Maukar
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 2 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i2.376

Abstract

In the industrial sector, problems are often found in optimizing production results in order to obtain maximum profits. Pia home industry Mrs. Sandra has a problem in maximizing profits, namely finding solutions to produce pia with the optimal amount. The purpose of this study was to determine the amount of production and optimal profit obtained in the production of pia in the home industry using the branch and bound method and to determine the results of the sensitivity analysis to changes in production components. The results of the analysis show that using the branch and bound method, the home industry pia Mrs. Sandra gets an optimal profit of Rp. 2,078,557 per month by producing 1,666 pia chocolate, 1,041 pia temo, and 800 pia peanuts per month. The results of the sensitivity analysis show that profits will remain in optimal conditions if Mrs. Sandra's pia home industry follows the changes that occur in production components based on the upper bound and lower bound according to the output produced using Lingo 19.0 software
PENERAPAN MEDIA APLIKASI GEOGEBRA DALAM PEMBELAJARAN MATERI BANGUN RUANG SISI DATAR Grafi Lonto; James U. L. Mangobi; Marvel G. Maukar
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 5 No. 1 (2024): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v5i1.602

Abstract

The purpose of this study was to determine the difference in the average learning outcomes of flat building materials of students taught using Geogebra applications and without Geogebra application Media. This study is an experimental study, with a post-test-only control design. The subjects in this study are Class VIII-A as a media experiment class applied to Geogebra application and VIII-B as a control class without the application of GeoGebra application media, both classes are homogeneous and equal to 20 students. The data of this study are taken from the results of the second post-test class. The mean value of the experimental class posttest is 75.3 and the mean value of the control class posttest is 69.2. The results obtained on the basis of hypothesis tests using a T-test with a significance level of 5% obtained value = 2,396793 > = 1,68595, and then reject . Thus, it can be concluded that the learning outcomes of students applying Geogebra application Media are more than the learning outcomes of students without applying Geogebra application Media