Question

Help me solve # 15 & 16

Answer 1

Answer:

15) $C=frac{5}{9}(F-32)$

16) 12 hours

Step-by-step explanation:

15) $F=\frac{9}{5}C+32 \\F-32 = \frac{9}{5}C\\\frac{5}{9}(F-32)=C$

16) If Jim drove 168 mi in 4 hours, this means it takes him

$\frac{4 hours }{168 mi}$

this many hours to drive 1 mile. So if we multiply this by 504 mi:

$\frac{4 hours }{168 mi} 504 mi = 4 \cdot 3 hours = 12 hours$