Gina takes classes at both Westside Community College and Pinewood Community College. At Westside, class fees are $ 98 per credit hour, and at Pinewood, class fees are $ 115 per credit hour. Gina is taking a combined total of 13 credit hours at the two schools. At Westside she is taking w credit hours. What is an expression for the combined total dollar amount she paid for her class fees?

Step-by-step explanation:

Given:

Gina takes classes at both West side Community College and Pinewood Community College.

At West side, class fees are $ 98 per credit hour,

At Pinewood, class fees are $ 115 per credit hour.

Gina is taking a combined total of 13 credit hours at the two schools.

At West side she is taking w credit hours.

Question asked:

What is an expression for the combined total dollar amount she paid for her class fees?

Solution:

Given that at West side, she is taking number of credit hours =

As combined credit hour is 13,

Then, at Pinewood, class, she is taking number of credit hours =

Now, we will find total amount she paid for number of classes at West side Community College, by unitary method:

She paid for 1 credit hour,  = $98

She paid for credit hour =

Thus, total amount she paid for number of classes at West side Community College is

Similarly, we will find total amount she paid for number of classes at Pinewood Community College, by unitary method:

She paid for 1 credit hour = $115

She paid for credit hour =

Thus, total amount she paid for number of classes at Pinewood Community College is

The expression for the combined total dollar amount she paid for her classes:-

,

a28=58

step-by-step explanation:

a1=a1+(n-1)d

a28= 4+ (28-1)2

a28=4+(27)(2)

a28=4+54

a28=58