Black Pencils cost £75 each and coloured pencils £105 each. If 24 mixed pencils cost £2010, how many of them were black. (Hint: (24-x) - coloured pencils, (x) - black pencils)

i dont know sorry

step-by-step explanation:

they can both be solutions depends on the equation

step-by-step explanation:

what is the equation? ?

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!

a

step-by-step explanation: