Answer:
5.78 %
Explanation:
Given: we’re ordering more thread for Blue Jeans Co, Ted’s Threads sells 12 thread spools for $27 we can buy thread from Wade's Wares for $2.30 each for the first 2 dozen and $2 a spool thereafter.
To Find: What percentage can we save by going with Wade’s Ware
Solution:
price of 12 thread spools from Ted's Threads=
![27](https://img.qammunity.org/2020/formulas/mathematics/high-school/v6ilfxvnd3c23q9wjwuk8mtqoyhw75pbc6.png)
cost of buying 5 dozen thread spools from Ted's Threads=
![27](https://img.qammunity.org/2020/formulas/mathematics/high-school/v6ilfxvnd3c23q9wjwuk8mtqoyhw75pbc6.png)
now,
cost of one spool for first 2 dozen spools from Wade's Wares=
![2.30](https://img.qammunity.org/2020/formulas/mathematics/middle-school/t9wcn12ye3tv3kloe49q8pazbrv5u03htd.png)
cost of buying of first 2 dozen spools from Wade's Wares=
![2.30](https://img.qammunity.org/2020/formulas/mathematics/middle-school/t9wcn12ye3tv3kloe49q8pazbrv5u03htd.png)
![55.2](https://img.qammunity.org/2020/formulas/mathematics/middle-school/al8b9uf5to52kgau0o26vga8nk1j1kv2gu.png)
cost of buying of rest 3 dozen spools from Wade's Wares=
![2](https://img.qammunity.org/2020/formulas/mathematics/high-school/ungpj0wd9ftsqhaos5e4zdvweyb227ctto.png)
![72](https://img.qammunity.org/2020/formulas/mathematics/middle-school/7wrn1yy12ccrha42thaeb0c5acfeicy4cw.png)
total cost of buying from Wade's Wares=
![(55.2+72)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/9t4z6et7gua8l3fql1ocn91abppp0cegky.png)
![127.2](https://img.qammunity.org/2020/formulas/mathematics/middle-school/rwjwi50dfw9hsnx47pcpts32tkb4vncsvl.png)
Money saved=cost of buying from Ted's Threads - cost of buying from Wade's Wares
![(135-127.2)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/s54ropbi5axjr59uaxm9fomcth5exia408.png)
![7.8](https://img.qammunity.org/2020/formulas/mathematics/middle-school/xggv3es5i6t00p0jqvp4w7m0hcw0v3tfz5.png)
percentage saving=
![\frac{\text{money saved}}{\text{cost of buying from Ted's Threads}}*100](https://img.qammunity.org/2020/formulas/mathematics/middle-school/1tebs8ha9f3olm78uzuyu3vv0m9lqn3crx.png)
![(7.8)/(135)*100](https://img.qammunity.org/2020/formulas/mathematics/middle-school/dmthsmgnhx3lnq6iyrquyamiummgx8id0h.png)
≅
%
we can save
% by going with Wade's Wares