Question

Angie is testing her science fair project, an erupting model volcano. In her first trial, she uses 3 drops of red coloring and 5 drops of yellow coloring for the lava. In her second trial, she uses 4 drops of red coloring and 8 drops of yellow coloring. Which trial had a lower ratio of red coloring to yellow coloring?

Answer 1

Given :

Angie is testing her science fair project, an erupting model volcano.

In her first trial, she uses 3 drops of red colouring and 5 drops of yellow colouring for the lava.

In her second trial, she uses 4 drops of red colouring and 8 drops of yellow colouring.

To Find :

Which trial had a lower ratio of red colouring to yellow colouring.

Solution :

Ratio at first trial :

$R_1=\dfrac{3}{5}\\\\R_1=0.6$

Ratio at second trial :

$R_2=\dfrac{4}{8}\\\\R_2=0.5$

Therefore, second trial had a lower ratio of red colouring to yellow colouring.

Hence, this is the required solution.