Ethan sells e candy bars for $2.50 apiece and Chloe sells c candy bars for $2.00 apiece to raise money for a school trip. Ethan sold 15 fewer candy bars than Chloe, but he also got a $6.00 donation. If Chloe and Ethan raised the same amount of money, which of the following systems could be used to find how many candy bars each sold?Choose 1 answer:(A) 2c=2.5e+6c=e−15(B) 2c=2.5e+6e=c−15(C) 2c+6=2.5ec=e−15(D) 2c+6=2.5ee=c−15
Q. Ethan sells e candy bars for $2.50 apiece and Chloe sells c candy bars for $2.00 apiece to raise money for a school trip. Ethan sold 15 fewer candy bars than Chloe, but he also got a $6.00 donation. If Chloe and Ethan raised the same amount of money, which of the following systems could be used to find how many candy bars each sold?Choose 1 answer:(A) 2c=2.5e+6c=e−15(B) 2c=2.5e+6e=c−15(C) 2c+6=2.5ec=e−15(D) 2c+6=2.5ee=c−15
Set Up Equations: Step 1: Let's set up the equations based on the information given. Ethan's total money raised is from selling candy bars at $2.50 each plus a $6.00 donation. Chloe's total money raised is from selling candy bars at $2.00 each. They raised the same amount of money, so we can set their equations equal to each other.
Calculate Candy Bars: Step 2: Ethan sold 15 fewer candy bars than Chloe, so if Chloe sold c candy bars, then Ethan sold c−15 candy bars.
Write Ethan's Equation: Step 3: Now let's write the equation for the money Ethan raised: 2.50(e)+6. Since e=c−15, we can substitute to get 2.50(c−15)+6.
Write Chloe's Equation: Step 4: Write the equation for the money Chloe raised: 2.00(c).
Set Equations Equal: Step 5: Since they raised the same amount of money, we can set the equations equal to each other: 2.50(c−15)+6=2.00(c).
Simplify Equation: Step 6: Now we need to find which answer choice matches our equation. Let's simplify our equation first: 2.5c−37.5+6=2c.
Final Simplification: Step 7: Simplify further by adding 37.5 to both sides: 2.5c−31.5=2c.
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