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Sirak buys x eggs at (x-8) cents each and (x-2) bread rolls at (x-3) cents each. If the total bill is 1.75 dollars, how many eggs does he buy?



The answer will be 13. x(x-8) + (x-2)(x-3) =1.75 dollars. =175cents. x(square)-8x-x(square)-5x=175. 2x(square)-13x+6=175. 2x(square)-13x-169=0. Factorise 2x(square)-13x-169 =0. =2x(square)-26x + 13x -169=0. 2x(x-13) + 13(x-13) =0. (2x+13)(x-13) =0. (x-13) =0 x=13. Hope this helps u. Please mark as brainliest answer.
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@VaniR how did you get -26 there ??
we have to factorise that equation
If we factorise -13= -26x+13x
Cost of each egg = (x-8) ¢
cost of x eggs = x(x-8) ¢
cost of each bread roll = (x-3)¢
cost of (x-2) bread rolls = (x-2)(x-3)
total bill is 1.75$ = 175¢
so you can write an equation as
x(x-8) + (x-2)(x-3) = 175
this is quadratic equation
solving gives you the required answer as 13
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