Solve linear partial variation about selling handbags

Question Sample Titled 'Solve linear partial variation about selling handbags'

When Caroline sells ${n}$ handbags in a month, her income in that month is $S$ . It is given that ${S}$ is a sum of two parts, one part is constant and the other part varies as ${n}$ . When ${n}={13}$ , ${S}={11550}$ ; when ${n}={8}$ , ${S}={9800}$ .

Initiating...

HKDSE 數學試題練習平台