Answer:
![600\text{ and }1800](https://img.qammunity.org/2021/formulas/mathematics/high-school/efrk1fnxc773qfebf0z77exgiv8xy7az0n.png)
Explanation:
GIVEN: A shipping department hires two delivery services to deliver
packages. One service will deliver
times as many packages as the other.
TO FIND: Find the deliveries by each service.
SOLUTION:
Let the deliveries done by first service be
![x](https://img.qammunity.org/2021/formulas/mathematics/middle-school/p9sq9b3rc5nwoqzhzc8wcaj51b36281l9g.png)
Let the deliveries done by second service be
![y](https://img.qammunity.org/2021/formulas/mathematics/middle-school/kkh2dol4tzoh3mam41rvldrs3zvp7rkbgp.png)
As, one service deliver
the other
![x=3y](https://img.qammunity.org/2021/formulas/mathematics/middle-school/nmr2a4xpfhk60tsms5kfevsnlqh63tvfko.png)
Total deliveries done by both serivces
![=2400](https://img.qammunity.org/2021/formulas/mathematics/high-school/po919iw16w6tysux9ia9zt2bwvs0bjl6z1.png)
![x+y=2400](https://img.qammunity.org/2021/formulas/mathematics/high-school/1d5owtf361zsyx7xrl1n1vso87mro37jue.png)
putting value of
from above
![3y+y=2400](https://img.qammunity.org/2021/formulas/mathematics/high-school/rqvp5ju55tbuvt6es4v271m97s4nywrhdb.png)
![4y=2400](https://img.qammunity.org/2021/formulas/mathematics/high-school/9z4ju453vq11waen88kq9n4umt6dwb8tnm.png)
![y=600](https://img.qammunity.org/2021/formulas/mathematics/high-school/901e4duragp4c0l8mb6blgmg1k325p06f4.png)
as
![x=3y](https://img.qammunity.org/2021/formulas/mathematics/middle-school/nmr2a4xpfhk60tsms5kfevsnlqh63tvfko.png)
![x=3*600=1800](https://img.qammunity.org/2021/formulas/mathematics/high-school/r200eck284xw1owu542qnrwqayino8htzu.png)
Therefore deliveries done by both services are
and
respectively