8 k+d use k=2 and d=3​

8×2=16

16+d

d=3

16+3=19

1 dog eats 1 pound per day

Step-by-step explanation:

Step 1: Calculate amount eaten by 3 dogs in one day

This can be expressed as;

Total amount eaten=Amount eaten by 3 dogs in a day×number of days

where;

Total amount eaten=30 pounds

Amount eaten by 3 dogs in a day=a

Number of days=10 days

replacing;

30=(a×10)

10 a=30

a=30/10

a=3 pounds

The 3 dogs eat 3 pounds per day

Step 2: Calculate how much a dog eats in a day

Total amount eaten=amount eaten per dog×number of dogs

where;

Total amount eaten=3 pounds per day

amount eaten per dog=d

number of dogs=3

replacing;

3=d×3

d=3/3

d=1 pound per day

1 dog eats 1 pound per day