4. The salaries of a school cook, custodian, and bus driver are in the ratio 2:4:3. If their

combined monthly salaries for November total $8,280, what is the monthly salary for each

person?

cook: $1840 custodian: $3680 bus driver: $2760

Step-by-step explanation:

There are a total of 2+4+3 = 9 "ratio units", so each one is worth ...

$8,280/9 = $920

Multiplying the ratio by $920, we get ...

cook : custodian : bus driver = $920 * (2 : 4 : 3) = $1840 : $3680 : $2760