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

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: $\mathrm { y } + 31.0 \mathrm { x } = 0.17$