Answer:
90 min
Step-by-step explanation:
3h=180 min
1h and 30min=90min
3h-1h and 30min=180min-90min=90
X-75+75= x
Is a model that could be used to anaslay the question
Answer:
<em>r</em>=2<em>p</em>
Step-by-step explanation:
If <em>r </em>is ruler and <em>p </em>is pen, ruler equals pen times 2, so its <em>r</em>=2<em>p</em>
The temperature at the beginning of the day was 6.2°F
Let x represent the temperature at the beginning of the day.
Since, the temperature of a city doubles during the day, and then decreases by 14.1ºF after the sun goes down, hence:
Temperature at end of day = 2x - 14.1
Also, the temperature at the end of the day is −1.7°F, hence:
2x - 14.1 = -1.7
2x = 12.4
x = 6.2°F
The temperature at the beginning of the day was 6.2°F
Find out more at: brainly.com/question/21105092
Answer:
x = -2-y
Step-by-step explanation:
