To solve this problem, we can use substitution or elimination method. Let's use the substitution method.
We are given the equations:
x + y = 28
y = 2x - 5
We will substitute the second equation into the first equation to solve for x.
x + (2x - 5) = 28
3x - 5 = 28
3x = 33
x = 11
Now we can substitute the value of x back into the second equation to solve for y.
y = 2(11) - 5
y = 22 - 5
y = 17
So, Marci sold 17 boxes and Jennifer sold 11 boxes.
Therefore, the answer is option D: Marci sold 17 boxes and Jennifer sold 11 boxes.
x + y = 28
y = 2x - 5
y = Marci; x = Jennifer
Jennifer and Marci are selling cookies for a fundraiser. They sold 28 boxes of cookies together. Marci sold 5 less than twice the number that Jennifer sold. How many boxes of cookies did each girl sell? Use system of equations to solve the problem.
Responses
A Marci sold 11 boxes and Jennifer sold 17 boxes.Marci sold 11 boxes and Jennifer sold 17 boxes.
B Marci sold 13 boxes and Jennifer sold 15 boxes.Marci sold 13 boxes and Jennifer sold 15 boxes.
C Marci sold 15 boxes and Jennifer sold 13 boxes.Marci sold 15 boxes and Jennifer sold 13 boxes.
D Marci sold 17 boxes and Jennifer sold 11 boxes.Marci sold 17 boxes and Jennifer sold 11 boxes.
Skip to navigati
1 answer