Solve the problem.
-The number of gaskets used in a plant is $R(x)=1200-40 x$, where 1200 is the number of gaskets in one shipload and $x$ is the number of days after shipment. Orders are made when a 10-day gasket supply is left. How many days after delivery is an order made?
A) 30 days
B) 10 days
C) 20 days
D) 15 days

Question

Quizplus · Accepted Answer

To find when an order is made, set $R(x)$ equal to the 10-day supply, which is $40 \times 10 = 400$. Solve $1200 - 40x = 400$ to find $x = 20$. Thus, an order is made 20 days after delivery.

Solve the Problem R(x)=1200−40xR(x)=1200-40 xR(x)=1200−40x , Where 1200 Is the Number of Gaskets in One

Solve the Problem $R(x)=1200-40 x$ , Where 1200 Is the Number of Gaskets in One