Answer:
[tex]\boxed{\text{130}}[/tex]
Step-by-step explanation:
Before breakfast = 39 seashells
After breakfast = 2⅓ × 39 seashells
Calculate the number collected after breakfast:
[tex]\begin{array}{lrcl}\text{No.} & = & 39 \times 2\dfrac{1}{3 } & \\\\& = & 39 \times \dfrac{7}{3} & \text{Converted the mixed number to an improper fraction}\\\\& = & 13 \times 7 & \text{Cancelled the threes}\\& = & 91 & \text{Multiplied}\\\\\end{array}[/tex]
Calculate the total number of seashells
[tex]\begin{array}{rcr}\text{Before breakfast} & = & 39\\\text{After breakfast} & = & 91\\\text{Total} & = & \textbf{130}\\\end{array}[/tex]
Sarah collected [tex]\boxed{\textbf{130}}[/tex] seashells in all.
