Step-by-step explanation:
Substitute 86 ⁰F into the given equation:
[tex]86 = 1.8c + 32[/tex]
Subtract 32 from both sides:
[tex]54 = 1.8c[/tex]
Divide each side by 1.8:
[tex]30 = c[/tex]
If the temperature is 86 ⁰F, that is equivalent to 30 ⁰C.
Substitute 40 ⁰C into the equation:
[tex]f = 1.8(40) + 32[/tex]
Multiply:
[tex]f = 72 + 32[/tex]
Add:
[tex]f = 104[/tex]
If the temperature is 40 ⁰C, that is equivalent to 104 ⁰F.
