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Sam is trying to make 12 packs of rice. She packed 2 1/2 kg of rice in each of the first 4 packs & 2 3/4 kg of rice in each of the remaining 8 packs. How many kgs of rice did she pack?

Respuesta :

Answer:

32 kg

Step-by-step explanation:

1. Convert the fractions to decimals:

2 1/2 = 2.5

2 3/4 = 2.75

2. Set up the equation to show 4 packs of 2.5 kg and 8 packs of 2.75 kg:

4*(2.5) + 8*(2.75)

3. Solve the equation using PEMDAS:

4(2.5) + 8(2.75)

10 + 8(2.75)

10 + 22

32

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