28/7=4. As a result, the constant of proportionality is 4. Hope it help!
The main formula we use here is Work=Rate*Time,
1. The rate (speed of working) of Dominik is

2. Let the the rate of Katarina be

Together they have a rate of

equal to

(project per hour)
so

simplify the units:



so the rate of Katarina is 3/40 (proj per hour)
Now, the rate of Dominik was 1/8 (pr/hr)=5/40 (pr/hr)
In 5 hours Dominik complets 5*5/40=25/40 of the project
Katarina completes 5*3/40=15/40 of the project.
Answer:
Yes, your answers are correct!
Step-by-step explanation:
Answer:
$2.24
Step-by-step explanation:
The shipping cost for one package was 1/11 of the total shipping cost.
... 1/11 · $24.64 = $2.24