$$\frac{1}{3}r-\frac{3}{4}=\frac{1}{2}$$
$r = \frac{15}{4} = 3\frac{3}{4} = 3.75$
$$\frac{1}{3}r=\frac{1}{2}+\frac{3}{4}$$
$$\frac{1}{3}r=\frac{2}{4}+\frac{3}{4}$$
$$\frac{1}{3}r=\frac{2+3}{4}$$
$$\frac{1}{3}r=\frac{5}{4}$$
$$r=\frac{5}{4}\times 3$$
$$r=\frac{5\times 3}{4}$$
$$r=\frac{15}{4}$$
Show Solution
Hide Solution
