Answer:
Nirmala can use the lamp for 31.66 hours before it runs out of oil.
Step-by-step explanation:
From the graph,
Take any two points, let say
(15, 25)
(25, 10)




The equation of line in slope-intercept form

Putting
and any point, let say (25, 10), to find the y-intercept 'b'







So the equation of line will be:


In order to find how long Nirmala can use the lamp before it runs out of oil, we need to find x-intercept which can be obtained by putting y = 0, and solve for x, as duration lies on x-axis.
so

Putting y = 0










Therefore, Nirmala can use the lamp for 31.66 hours before it runs out of oil.
Answer:
All real numbers
Step-by-step explanation:
Here, we want to get the domain
The domain refers to the possible x values of the function
As we can see, the plot extends thoroughout the entirety of the graph
This extends from positive infinity to negative infinity
This means that the domain is all real
numbers
Answer:
Step-by-step explanation:
x is 79 and y is 47
Answer:
The jelly beans cost $2.25 / pound
The trail mix costs $1.25 / pound
Step-by-step explanation:
I just took the test.