Answer:the two equations that model the situation are
x + y = 48
3x + 2y = 15
Step-by-step explanation:
Let x represent the total number of hours that Derek worked.
Let y represent the total number of hours that Donnie worked.
Derek and Donnie mow 15 lawns over two 2 days. There are 24 hours in a day. Therefore, the number of hours in 2 days would be 2 × 24 = 48 hours. Therefore
x + y = 48 - - - - - - - - - -1
If Derek mows 3 lawns per hour and Donnie mows 2 lawns per hour, it means that
3x + 2y = 15 - - - - - - - - - 2
Answer:
D
Step-by-step explanation:
the answer is d because the quadrilateral is in quadrant 3 which is (-,-)
Answer choice should be B because (x,y)
The values are
The quadratic function, expressed in factored form is
Expanding and simplifying
since
we can equate coefficients of like-terms and conclude that
Learn more about quadratic equations here: brainly.com/question/12995618