## DannyÍs 7 friends contributed an equal amount of money to buy him a birthday present. The present cost $84. How much money did each friend contribute?

October 11, 2019// Blog//

**Answer: The correct option is **

**Step-by-step explanation: **Given that Joanne works two jobs to pay for college.

**Let, t and r represents the number of hours she tutors and number of hours she works as a receptionist.**

The, **the total number of hours she work = t + r.**

Since she can work up to 25 hours per week, **so the total number of hours she work is less than or equal to 25.**

**Therefore, we can write**

Now,

Joanne earns $25 per hour through tutoring, **so the amount of money she earn tutoring = $25t,**

and

she earn $12 working as a receptionist, **so the amount of money she earn as a receptionist = $12r.**

**Since she earn at lest $200 per week, so the total earning of Joanne per week will be greater than or equal to $200.**

**Therefore, we can write**

**Thus, the required system of inequalities representing this scenario is**

** **

**Option (C) is correct.**