Answer:
4
9
2
−
5
6
−
5
6
+
6
4
Step-by-step explanation:
Person A takes 2.3 days to paint the house working alone
Person B takes 13.8 days to paint the house working alone
<em><u>Solution:</u></em>
Let "x" be the number of days it takes person A to paint the house
Person A can paint the neighbor's house 6 times as fast as Person B
Therefore.
Number of days it takes person B to paint the house = 6x
Their rates of painting are added to get the rate working together


Thus person A takes 2.3 days to paint the house working alone
Person B = 2x = 6(2.3) = 13.8
Thus person B takes 13.8 days to paint the house working alone
<u>Solution</u> is:
and it means, the minimum temperature is 50° Fahrenheit and the maximum temperature is 64° Fahrenheit.
<u><em>Explanation</em></u>
Given inequality is: 
As this is absolute inequality, so we will get two different inequalities-- one for positive and another for negative. So.....

and

So, the final combined solution will be: 
<em>It means that the minimum temperature for San Francisco, California is 50° Fahrenheit and the maximum temperature is 64° Fahrenheit.</em>
Answer: perpendicular lines
Step-by-step explanation: