Jawaban:
9. b. 5/2
10. a. 8 3/4
11. a. 11, 13, 17, 19, 23
Penjelasan dengan langkah-langkah:
9. 1 1/4 ÷ 0,5 = 5/4 ÷ 5/10
= 5/4 × 10/5
= 10/4
= 5/2 ( b )
10. Luas lantai kamar yg dipel = p × l
= 7/2 × 25/10
= 175/20
= 35/4 = 8 3/4 ( a )
11. ( a ) 11, 13, 17, 19, 23
Jawab:
9. 5/2
10. 8 3/4
11. 11, 13, 17, 19, 23
Penjelasan dengan langkah-langkah:
1 1/4 : 0,5
= 5/4 : 1/2
ubah menjadi perkalian = 5/4 x 2/1 = 10/4 = 5/2
panjang = 3 1/2
lebar = 2,5 = 2 1/2
luas = p x l = 3 1/2 x 2 1/2 = 7/2 x 5/2 = 35/4 = 8 3/4
11, 13, 17, 19, 23
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