Answer:
6.86 kg
Step-by-step explanation:
Here ,apparently the weight and number of sheets are proportional.
Let m be the weight of 700 sheets.
[tex]\text{} \begin{matrix}500\ \text{sheets} \text{} \longrightarrow 4.9\ \text{kg} \\ 700\ \text{sheets} \text{} \longrightarrow m\ \text{kg} \end{matrix}[/tex]
coefficient of proportionality :
[tex]\text{} \text{The coefficient of proportionality is equal to :} \ \frac{700}{500} =\frac{7}{5}[/tex]
Then
[tex]\frac{m}{4.9} = \frac{7}{5}[/tex]
Then
[tex]m = \frac{7}{5} \times 4.9 =6.86 \ \text{kg}[/tex]
