Question

A) Change 2800 cm³ into litres.

b) Change 12.4/ into cm³.​

Answer 1

`\huge\boxed{a)\ 2,800cm^3=2.8l}\\\boxed{b)\ 12.4l=12,400cm^3}`

Explanation:

`1l=1dm^3\\\\1dm=10cm\to1dm^3=(10cm)^3=1,000cm^3\\\\\text{therefore}\ 1l=1,000cm^3\to1cm^3=(1)/(1,000)l=0.001l\\\\a)\ 2,800cm^3=2,800\cdot0.001l=2.8l\\\\b)\ 12.4l=12.4\cdot1,000cm^3=12,400cm^3`

Answer 2

a) 2.8 liters

b) 12400 cm³

Explanation:

1 cm³ = 1 mL

1000 mL = 1 L

a)

2800 cm³ × (1 mL)/(1 cm³) × (1 L)/(1000 mL) = 2.8 L

b)

12.4 L × (1000 mL)/(1 L) × (1 cm³)/(1 mL) = 12400 cm³