A) you must plug in 50 for variable F and solve for C
C=[tex] \frac{5}{9} [/tex](50-32)
C=[tex] \frac{5}{9}[/tex](18)
C= 10
50 degrees fahrenheit is equal to 10 degrees celsius
B) you must solve the equation for F
C= [tex] \frac{5}{9} [/tex](F-32)
C/[tex] \frac{5}{9} [/tex]=F-32
C/[tex] \frac{5}{9} [/tex]+32=F
F= C/[tex] \frac{5}{9} [/tex]+32
dividing by a fraction is the same as multiplying buy its reciprocal so it can also be written as
F=[tex] \frac{9}{5} [/tex]C +32
now you just plug in 50 for the variable C in the new equation
F= [tex] \frac{9}{5} [/tex](50) +32
F= 90 + 32
F= 122
50 degrees celsius is equal to 122 degrees fahrenheit
hope this helped!
