Question

Suppose that to send a telegram it costs $2 for the first 10 words in the telegram and Y cents for each additional words.

a. Write an equation to find the cost C of a telegram 26 words long.

b.Solve this equation for Y.

PLZ show me how to do this.

Answer 1

a) C = 2 + 16 x (Y/100) (where C is in dollars)

b) Rearrange this:

C - 2 = 16 x (Y/100)

which can be written as:

Y = (C - 2) x 100/16

Answer 2

I am giving a generalized solution below and solving for given specific condition
C= 2+ (Y/100) * (x-10) dollars. Where x is the number of words

here
a) C = 2+ (Y/100)*(16) $
= (200+16Y)/(100)

b) a => Y= (100C-200)/16