Jenny has a 57 3/4 kg bag of dog food. Her dog eats 5 1/4 kg of food each week. How Many Weeks will the bag of dog food last? A.10 3/4 B. 11 weeks C. 18 3/8 D.63 weeks

Question

asked Feb 12, 2019 71.4k views

2 Answers

Bamdan · Answer 1 · 2019-02-18T05:05:49+0000

Answer:

B) 11 weeks

Explanation:

Given: Jenny has a 57 3/4 kg bag of dog food. Her dog eats 5 1/4 kg of food each week

To Find: How Many Weeks will the bag of dog food last

Solution:

quantity of dog food jenny has
$=57(3)/(4)\text{kg}$

$(231)/(4)\text{kg}$

dog food eaten by jenny's dog each week
$=5(1)/(4)\text{kg}$

$(21)/(4)\text{kg}$

Number of weeks dog food last
$=\frac{\text{Total dog food}}{\text{Dog food eaten in one week by jenny's dog}}$

((231)/(4))/((21)/(4))

(231)/(21)

$\text{weeks}$

the bag of jenny's dog food will last for 11 weeks, therefore option B is correct