2 Lena tutors chemistry. For each hour that she tutors, she earns 30 dollars.

Let E be her earnings (in dollars) after tutoring for H hours.

E

Write an equation relating E to H. Then use this equation to find Lena's earnings after tutoring for 19 hours.

Equation:

x

5

?

Lena's earnings for 19 hours: I dollars

$570

Step-by-step explanation:

Given that:

For each hour of tutoring, Lena earns 30 dollars.

E is her earning and

H is the number of hours for which she tutors.

To find:

Equation relating E to H.

Solution:

Let Lena tutors for 1 hour, then the earning = 30 dollars

Let Lena tutors for 2 hours, then the earning = 30+30 OR 230 = 60 dollars

Let Lena tutors for 3 hours, then the earning = 30+30 +30 OR 330 = 90 dollars

If Lena tutors for H number of hours, then the earning, E = 30 + 30 + .... + 30 (H times) i.e.

So, the equation that relates E to H is given as:

Now, it is given that she tutors for 19 hours.

Let us put H = 19 hours in the above equation:

Therefore, the earning for 19 hours of tutoring is 570 Dollars.

the  office resources  are the human, physical and financial  resources  which are utilized for performing all the activities in order to achieve the organizational objectives.

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