Answer:
77°
Step-by-step explanation:
![\\ T = \frac{1}{2} (RU - SU)\\ \\ 21 =\frac{1}{2}(119 - SU)\\ \\ 42 = 119 - SU\\ SU=77](https://tex.z-dn.net/?f=%5C%5C%20T%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20%20%28RU%20-%20SU%29%5C%5C%20%5C%5C%2021%20%3D%5Cfrac%7B1%7D%7B2%7D%28119%20-%20SU%29%5C%5C%20%5C%5C%2042%20%3D%20119%20-%20SU%5C%5C%20SU%3D77)
N=90 you have to simplify both sides then isolate the variable :)
Answer:
$14.5
Step-by-step explanation:
Given data
Cost for the visit=442.25 Rubles
exchange rate
3 USD= 91.5 Rubles
but 1 USD= 91.5/3
= 30.5
Therefore if 1 USD is 30.5 Rubles
Then xUSD is 442.25 Rubles
cross multiply
30.5x= 442.25
divide both sides by 30.5
x= 442.25/30.5
x=14.5USD
The cost of the attraction is $14.5