Chris makes 7 dollars per hour plus a weekly bonus of 10 dollars a week, where x is the number of hours worked and y is the total income earned.

What equation represents this scenario?
If Chris' paycheck this week is $94, how many hours did he work?

1 answer

To represent Chris's income scenario with an equation, we can express the total income \( y \) as a function of the number of hours worked \( x \).

Chris earns $7 per hour and an additional $10 per week as a bonus. Therefore, the equation can be written as:

\[ y = 7x + 10 \]

where:

  • \( y \) is the total income,
  • \( x \) is the number of hours worked.

Now, if Chris's paycheck this week is $94, we can set \( y = 94 \) and solve for \( x \):

\[ 94 = 7x + 10 \]

To isolate \( x \), first, subtract 10 from both sides:

\[ 94 - 10 = 7x \] \[ 84 = 7x \]

Now, divide both sides by 7:

\[ x = \frac{84}{7} = 12 \]

Therefore, Chris worked 12 hours this week.