SAT Mathematics Practice Test 6

The y-coordinate of the x-intercept is $0$, so $0$ can be substituted for y, giving $\frac{4}{5}\mathit{x}+\frac{1}{3}\left(0\right)=1$.This simplifies to $\frac{4}{5}\mathit{x}=1$.Multiplying both sides of $\frac{4}{5}\mathit{x}=1$ by $5$ gives $4\mathit{x}=5$.Dividing both sides $4\mathit{x}=5$ by 4 gives $\mathit{x}=\frac{5}{4}$,which is equivalent to $1.25$.Either $\frac{5}{4}$ or $1.25$ may be gridded as the correct answer.