If y=2.52 when x=8.4, what is y when x=2.7?

1 Answer
Jun 4, 2017

When x = 2.7, color(blue)(y = .81)

Explanation:

y=2.52 when x = 8.4

Create a proportion:
frac{y_1}{x_1} = frac{y_2}{x_2}

frac{2.52}{8.4} = frac{y_2}{2.7}

Multiply each side by 2.7 to solve the equation:
y_2 = frac{2.7*2.52}{8.4}

y_2 = .81