Answer:
1.50 × 10^6 gallons
Step-by-step explanation:
Given that ;
Combined volume of all tanks = 1.25×10^6 gallons
Volume of new tank to be installed = 250000 gallons
Total volume of all tanks after installing the new tank:
Initial volume of combined tanks + volume of new tank
1.25×10^6 + 250000
250000 in standard notation
250000 = 0.25×10^6
Hence,
1.25×10^6 + 0.25×10^6
= (1.25 + 0.25) × 10^6
= 1.50 × 10^6 gallons
