Answer:
Electricity bill is 175
Explanation:
Given
![Rent = 1800](https://img.qammunity.org/2021/formulas/mathematics/college/ntf03ylpddebb8zplf93uwpcz2oulk6ybm.png)
![Gas = 150](https://img.qammunity.org/2021/formulas/mathematics/college/dbxbcnrbqtszg38alrur381fvc0ij31joz.png)
monthly
![Number\ of\ Roommate = 5](https://img.qammunity.org/2021/formulas/mathematics/college/tdxy1j1ojhhjbwfcse6goquggkg3mf9q5o.png)
Required
Determine the electricity bill
If each roommate pays 425, then 5 roommates pay 5 * 425
![Total = 5 * 425](https://img.qammunity.org/2021/formulas/mathematics/college/wc9smpbzctv0c9myaya69gmqr9p5idjohn.png)
![Total = 2125](https://img.qammunity.org/2021/formulas/mathematics/college/ocmuyb01x9sfwtodnsff9x8kz0avjuku1s.png)
This implies that: the monthly cost of room, gas and electricity add up to 2125.
In other words,
![Gas + Rent + Electricity = 2125](https://img.qammunity.org/2021/formulas/mathematics/college/nov5dfu5vrgq70afddzznof4q8xsei1me3.png)
![150 + 1800+ Electricity = 2125](https://img.qammunity.org/2021/formulas/mathematics/college/iuqhon0vnqwrvx1kifseqejb2ilushmb9n.png)
![1950+ Electricity = 2125](https://img.qammunity.org/2021/formulas/mathematics/college/5t847ea8eo03htem3jagywm6zrjy95cib5.png)
![Electricity = 2125 - 1950](https://img.qammunity.org/2021/formulas/mathematics/college/x0gskofimrv08mv863upy8urpm6l57p92f.png)
![Electricity = 175](https://img.qammunity.org/2021/formulas/mathematics/college/hf93608vgdebdk5jo0nfp1z6e5s4o7efai.png)
Hence, the electricity bill is 175