A boy starts the week with 3kg of rice, every day he cooks 0.6kg. How much rice will he have left after 4 days?

0.6kg

Step-by-step explanation:

working out how much rice has been used in 4 days:

0.6kg × 4 = 2.4kg

rice left over after 4 days:

3kg - 2.4kg = 0.6kg

the correct answer is option c.   3

step-by-step explanation:

points to remember

equation of the line with coordinates (x₁, y₁) and (x₂, y₂) is given by,

slope m = (y₂ - y₁)/(x₂ - x₁)

from the figure we can see a line with two coordinates given

to find the slope of given line

here   (x₁, y₁)   = (-1, -1 ) and (x₂, y₂) = (1, 5)

slope m = (y₂ - y₁)/(x₂ - x₁)

  = (5 - -1)/(1 - -1)

  = (5 + 1)/(1 + 1)

  = 6/2 = 3

therefore the correct answer is option c.   3

step-by-step explanation: