Tolong dijawab yaa tolong maaf kalau banyak

Tolong dijawab yaa tolong maaf kalau banyak

Jawaban:

1. 6 menit = 15 L

10 menit = n L

$frac{n}{15} = frac{10}{6}$

$n = frac{10 times 15}{6}$

n = 25 (E)

2. rugi = 15%

$= frac{15}{100} times 3200000$

= Rp480.000,00

harga jual = Rp3.200.000,00 – Rp480.000,00 = Rp2.720.000,00 (I)

3. Keliling belah ketupat = 4 × 12 = 48 cm

Keliling persegi panjang = 2 × (p+l)

48 cm = 2 × (p + 8)

24 = p + 8

p = 16 cm

Luas persegi panjang = p × l = 16 × 8 = 128 cm² (B)

4. <A + <B = 90°

(x + 11)° + (2x + 4)° = 90°

3x + 15° = 90°

3x = 75°

x = 25°

<B = 2x + 4 = 2 × 25 + 4 = 54° (A)

5. %pramuka = 100% – (17% + 25% + 13%)

= 100% – 55%

= 45%

banyak siswa

= 45% × 300

$= frac{45}{100} times 300$

= 135 siswa (G)