49.8k views
0 votes
Mikhael, Hema, and 5 friends will help run their school's fundraiser. They will wear

INT
EREST
either a red shirt or a red baseball cap during the event. They want to spend exactly
$40. Shirts cost $8 each and caps cost $4 each. Set up a system of equations to model
WX+ y = 7
the situation.Select the correct graph of the system
8x + 4y = 40
TE


User Zack Tarr
by
4.2k points

1 Answer

2 votes

Please find the attached graph.

Let x represent number of shirts and y represent number of caps.

We have been given that Mikhael, Hema, and 5 friends will help run their school's fundraiser. They will wear either a red shirt or a red baseball cap during the event.

Since there are 7 people in total, so total number of caps and shirts will be 7. We can represent this information in an equation as:


x+y=7...(1)

We are also told that Shirts cost $8 each and caps cost $4 each. So cost of x shirts would be
8x and cost of y caps would be
4y.

Since they want to spent exactly $40, so cost of x shirts and y caps will be equal to 40. We can represent this information in an equation as:


8x+4y=40...(2)

We can divide equation (2) by 4 as:


2x+y=10...(2)

We can see from our attached graph that solution of this system is (3,4), therefore, 3 friends will wear shirts and 4 will wear caps to stay in the budget.

Mikhael, Hema, and 5 friends will help run their school's fundraiser. They will wear-example-1
User Prakash Krishnan
by
4.1k points