Question

Filipa is writing an article for a magazine. She will be paid a flat fee and also will be paid for each word that is published. The total amount she can expect to be paid, in dollars, can be estimated using the function f(x)=1.5x + 20, where x is the number of words published. How many words can Filipa need to write to receive $1100

Answer 1

720 words

Explanation:

From the question, we are given the function

f(x)=1.5x + 20

When f(x) = Cost function or the cost

From the question, f(x) = $1100

1100 = 1.5x + 20

1100 - 20 = 1.5x

1080 = 1.5x

x = 1080/1.5

x = 720

Therefore, Filipa has to write 720 words