Maribeth works in a dog rescue centre. At feeding time, 5 of the dogs each get 3/4 kg of food and 3 dogs each get 3/5 kg of food. How much food does Maribeth feed to the dogs?
To find out how much food Maribeth feeds to the dogs, we can add up the amount of food given to each group of dogs separately.
Let's start with the group of 5 dogs that each get 3/4 kg of food. To find out the total amount of food for this group, we need to multiply the weight of food given to each dog (3/4 kg) by the number of dogs in the group (5):
(3/4) kg/dog * 5 dogs = (15/4) kg
Next, let's calculate the amount of food given to the group of 3 dogs that each get 3/5 kg of food. Multiply the weight of food given to each dog (3/5 kg) by the number of dogs in the group (3):
(3/5) kg/dog * 3 dogs = (9/5) kg
Finally, we can determine the total amount of food given to all the dogs by adding the amounts obtained from both groups:
(15/4) kg + (9/5) kg = (75/20) kg + (36/20) kg = (111/20) kg
Therefore, Maribeth feeds the dogs a total of (111/20) kg of food.