Emma notices that the amount owed on her monthly heating bill varies inversely with the average outdoor temperature. Last month the average outdoor temperature was 40°F, and her bill was $190. If this month's average outdoor temperature is 55°F, what will Emma’s monthly heating bill be?

≈ $138

Step-by-step explanation:

let h be heating bill and t be average outdoor temperature

Given h varies inversely with t then the equation relating them is

h = ← k is the constant of variation

To find k use the condition h = 190 and t = 40 , then

190 = ( multiply both sides by 40 )

7600 = k

h = ← equation of variation

When t = 55 , then

h = ≈ 138.1818

That is monthly heating bill is approximately $138 ( to nearest whole number )

.19875994384

step-by-step explanation:

1699/ 8548

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )