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boemeh459
14.11.2019 •
Mathematics
Three dogs eat 30 pounds of food in 10 days. if each dog eats the same amount, how much food does 1 dog eat in 1 day? 1 pound 3 pounds 9 pounds 10 pounds
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Ответ:
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
Ответ:
500 times
Step-by-step explanation:
200÷0.4=500