Respuesta :
Given-
Cost of milk 4 years ago = £1.05
To find-
Percentage increase in cost
Solution-
Increase in cost = £ ( 1.26 - 1.05 )
→ £ 0.21
Percentage increase :-
[tex] \frac{0.21}{1.05} \times 100[/tex]
[tex]→ 20[/tex]
Therefore, Percentage increase of the cost of milk over 4 years is 20% .
✍️ By Benjemin ☺️
- Initial cost =£1.05
- Final cost=£1.26
Rate of change=1.26-1.05=£0.31
Now percentage of change
[tex]\\ \sf\longmapsto \dfrac{0.21}{1.05}\times 100[/tex]
[tex]\\ \sf\longmapsto \dfrac{100}{5}[/tex]
[tex]\\ \sf\longmapsto 20\%[/tex]
