Question

Clarence brought 5 rolls of color film and 4 rolls of black - and - white film for his camera for a total of $24.00. The black - and - white cost $1.50 per roll more than the color film. how much does one roll of the black - and -white film cost?

Answer 1

x - price for roll of collor film

`x +1.50`- price for black and white roll of film

`5x+4(x+1.50)=24`

`5x+4x+6=24`

`9x=18`

`x=2`$

`2+1.50=3.50`$
One roll of the black and white film costs 3.50$