What is the solution of the linear-quadratic system of equations?

y=x' + 5x + 7
y = x +4

Step-by-step explanation:

Given the system of the equations

steps to solve the system of the equations

subtract the equations

solving

substitute into

Now substitute into

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950