Answer:
Maddy's hourly pay is $8.50
Step-by-step explanation:
First, we need to use the information given to us to form a system of equations to determine either Maddy's pay, or her cousin's pay. In this case, we are interested in Maddy's pay.
We know her cousin makes 30% more than Maddy, which means she makes 100% of what Maddy makes, and an additional 30%. So we have our first equation:
C = M + .3M = 1.3M, where C is the amount the cousin makes and M is Maddy's pay.
The second piece of information is that in one week, Maddy worked 23 hours, and her cousin worked 27, and together they made $493.85. So now we have our second equation:
27C + 23M = 493.85, where C is the amount the cousin makes and M is the amount Maddy makes.
Now we simply substitute are value of C from the first equation into the second equation like such:
27(1.3M) + 23M = 493.85
And now we solve for M to find Maddy's pay.
27(1.3M) + 23M = 493.85
35.1M + 23M = 493.85
58.1M = 493.85
M = 8.5
To verify our answer is correct, let's find the value of money earned per hour by the cousin using the first equation:
C = 1.3(8.5) = 11.05
Now let's see if the number of hours worked by each and their pay adds up to the 493.85 from the previous week:
27(11.05) + 23(8.5) =? 493.85
298.35 + 195.5 =? 493.85
493.85 == 493.85
So, now we have confirmed that Maddy makes $8.50 per hour, and her cousin makes $11.05 per hour.
Cheers.