Question

The sporting equipment has been sorted into baseballs and bats. The number of baseballs is four less than three times the number of bats. The equipment is 80% baseballs. Choose the equation that best represents this scenario

Answer 1

Answer: Second Option

$\frac{x}{3x-4} = \frac{20}{80}$

Step-by-step explanation:

The baseball team is composed of bats and balls.

Call x the number of bats and call z the number of balls.

Then we know that:

The number of baseballs is four less than three times the number of bats.

This is:

$z = 3x-4$      (I)

Then we know that the team is 80% baseballs

This is:

$\frac{x}{z} = \frac{0.2}{0.8}$    (II)

We substitute the first equation in the second and we have:

$\frac{x}{3x-4} = \frac{0.2}{0.8}\\\\\frac{x}{3x-4} = \frac{20}{80}$

Answer 2

Answer:

x/(3x-4) = 20/80