David, egil and frances share money in the ratio 2: 7: 9. frances gets ? 80 more than david. explain how you know egil gets ? 80.

Step-by-step explanation:

We have been given that David, Egil and Frances share money in the ratio 2:7:9.

Let 2x, 7x and 9x be the amounts of money that David, Agil and Frances get respectively.  

We are told that Frances gets $80 more than David. So we can write this information in an equation as:

Now let us solve for x.

Now let us substitute in 7x (amount of money that Egil gets).

Upon cancelling out 7 from numerator and denominator we will get,

Therefore, Egil will get $80.    

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step-by-step explanation: