Solve Problems Using Systems of Linear Equations
-In 1985, in the Town

question 60

Multiple Choice

Solve Problems Using Systems of Linear Equations
-In 1985, in the town of Appleby, $21.2 \%$ of Hispanics were overweight, increasing by an average of $0.42 \%$ per year. In 1985, in the town of Appleby, $0.17 \%$ of whites were overweight, increasing by an average of $31.0 \%$ per year. Write a function that models the percentage, $y$ , of Hispanics who are overweight x years after 1985. Write a function that models the percentage, $y$ , of whites who are overweight x years after $1985 .$

• A) Hispanics: \(y = 0.42 x + 21.2\)
• Whites: \(\mathrm { y } = 31.0 \mathrm { x } + 0.17\)
• B) Hispanics: \(y = 21.2 x + 0.42\)
• Whites: \(\mathrm { y } = 0.17 \mathrm { x } + 31.0\)
• C) Hispanics: \(\mathrm { y } = 21.62 \mathrm { x }\)
• Whites: \(y = 31.17 x\)
• D) Hispanics: \(y + 0.42 x = 21.2\)
• Whites: \(\mathrm { y } + 31.0 \mathrm { x } = 0.17\)

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