Systems of Linear Equations Online Practice

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Question
The Lincoln High School Student Council wants to raise $300 to make a donation to a homeless shelter. To help the students earn the money, the principal has agreed to pay $15 for each member who picks up litter outside, p
, and $10 for each member who cleans the hallways, c
. All 25 members of the student council will be participating. Write the pair of linear equations that model this situation.(1 point)
Responses

p+c=300
; 15p+10c=25
p plus c equals 300 ; 15 p plus 10 c equals 25

p+c=300
; 10p+15c=25
p plus c equals 300 ; 10 p plus 15 c equals 25

p+c=25
; 15p+10c=300
p plus c equals 25 ; 15 p plus 10 c equals 300

p+c=25
; 10p+15c=300
p plus c equals 25 ; 10 p plus 15 c equals 300
Remaining Attempts : 3

1 answer

To set up the pair of linear equations for the situation described:

  1. Identify the variables:

    • Let \( p \) be the number of members who pick up litter.
    • Let \( c \) be the number of members who clean the hallways.
  2. Total members: Since there are 25 members in total, we can create the first equation based on the total participation: \[ p + c = 25 \]

  3. Money raised: The principal pays $15 for each member picking up litter and $10 for each member cleaning the hallways. The total amount they want to raise is $300, leading to the second equation: \[ 15p + 10c = 300 \]

Thus, the correct pair of linear equations is:

  • \( p + c = 25 \)
  • \( 15p + 10c = 300 \)

From the provided options, the correct choice is: p+c=25; 15p+10c=300