Answer:
2.6
Step-by-step explanation:
Given:
Sam bought 2 3/4 pounds of grapes for $ 7.15
Question asked:
What is the cost per pound ?
Solution:
By applying unitary method:
Cost of 2 3/4 pounds of grapes = 7.15
Cost of 1 pound of grapes = [tex]7.15\div 2\frac{3}{4}[/tex]
= [tex]7.15\div\frac{11}{4}[/tex]
= [tex]7.15\times\frac{4}{11}[/tex]
= [tex]28.6\div11[/tex]
= [tex]2.6[/tex]
= 2.6
Thus, cost of grapes per pound is $2.6
