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2 Ahmad's Continual Assessment results slip was accidentally tom. Part

Berikut ini adalah pertanyaan dari mixiemifi pada mata pelajaran Matematika untuk jenjang Sekolah Menengah Pertama

2 Ahmad's Continual Assessment results slip was accidentally tom. Part of his mathematics and science marks are missing. 83 785 English Mother Tongue Mathematics Science Average al 75 a) b) What could possibly be Ahmad's marks in mathematics? What could possibly be Ahmad's marks in science?​
2 Ahmad's Continual Assessment results slip was accidentally tom. Part of his mathematics and science marks are missing. 83 785 English Mother Tongue Mathematics Science Average al 75 a) b) What could possibly be Ahmad's marks in mathematics? What could possibly be Ahmad's marks in science?​

Jawaban dan Penjelasan

Berikut ini adalah pilihan jawaban terbaik dari pertanyaan diatas.

Jawab:

a. 70 to 79

b. 60 to 69

Penjelasan dengan langkah-langkah:

average = 75

sum = 4 × 75 = 300

english + mother tongue = 83 + 78 = 161

so

math + science = 300 - 161 = 139

then

if

mat = 70 → science = 69

mat = 71 → science = 68

...

mat = 79 → science = 60

so

possibly mat → 70 to 79

possibly science → 60 to 69

and its not help anything

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Last Update: Thu, 11 Aug 22
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