Akira and a business associate agree to invest in a project estimated to cost $1.8 million (1,800,000). They decide to split the costs in a ratio of 7:5. Find the cost to Akira. Round to the nearest dollar.

If it's relationship Akira : Business A. = 7:5

The part of Akira is 7k

and the part of the Business A. is 5k

Then

7k+5k=12k = > 12k=1,800,000 = > k = 1,800,00/12=150,000$

Akira part is 7k = 7 * 150,000 = 1,050,000$

Good luck!