I need help. Semir, Sarah, and SungSo decided to raise money for a local homeless shelter by working in a local deli. The deli agreed to donate to the shelter a portion of the profits from each meal the three sold. Semir sold 3 times as many meals as Sarah. SungSo sold 2 more meals than Sarah. The three decided to participate in a walkathon to raise additional money for the shelter. Sarah walked 5 miles less than twice the number of miles that Semir walked. They each collected $18 in pledges for every mile they walked.
a. Let \( n \) represent the number of miles Semir walked. Write an expression for the number of miles Sarah walked and an expression for the amount of money Sarah collected in pledges.
Answer (3)
According to the question, Let, "n" represent the number of miles semir walked. "y" represent the number of miles sarah walked. Now, according to the question,
y = 2n - 5 ........................**this is your equation **
Also, the question states, each of them collect $18 in pledges for every miles walked.
Given, Sarah collected $450 Now,
Using unitary method,
Sarah collects $18 for 1 mile Sarah collects $1 for (1 / $18) mile Sarah collects $450 for (1 / 18) * 450 mile = 25 miles So, Sarah walks 25 miles. Now, Taking equation, y = 2n - 5 Since, y is the no. of miles sarah walked, we can write 25 in place of "y" So, (25) = 2n - 5 25 + 5 = 2n 30 = 2n 30 / 2 = n 15 = n
Since, "n" is the no. of miles that semir walked, Semir walked 15 miles.
The homework question involves Sarah, Semir, and SungSo raising money through meal sales and participating in a walkathon. We need to find expressions related to Sarah's effort in the walkathon. Let n represent the number of miles that Semir walked. The problem states that Sarah walked 5 miles less than twice the number of miles that Semir walked. So, the expression for the number of miles Sarah walked can be written as 2n - 5.
For the money collected in pledges by Sarah, it's given that each mile walked brought in $18 in pledges. To find the total amount of money she collected, we multiply the number of miles she walked by the amount collected per mile. Plugging the expression for the miles into this, we get:18(2n - 5), which simplifies to 36n - 90. This is the expression for the total amount of money Sarah collected in pledges.
Sarah walked 2 n − 5 miles, and she collected pledges totaling 36 n − 90 dollars based on the miles she walked.
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