For this, we need to make ratios(unit per unit, in this case, red paint per white paint).
Sydney's Mix - [tex]\frac{7 red}{4 white}[/tex]
Maria's Mix - [tex]\frac{5 red}{3 white}[/tex]
Both of these fractions are improper, so you can make mixed fractions and then find their common denominators:
Sydney's Mix - 1[tex]\frac{3}{4}[/tex] = 1[tex]\frac{9}{12}[/tex]
Maria's Mix - 1[tex]\frac{2}{3}[/tex] = 1[tex]\frac{8}{12}[/tex]
Therefore, they do not have the same shade of pink because 1[tex]\frac{9}{12}[/tex] [tex]\neq[/tex] 1[tex]\frac{8}{12}[/tex] :)
