PLZZZ HELP MEE James adds vitamin drops to his fish tank to keep his fish healthy. If James
follows the instructions on the bottle of vitamins, how many capfuls should he add
to his 450-litre tank? (4 marks)
• 2 drops per 5 litres
of water
• 1 capful = 40 drops

Step-by-step explanation:

350/5=70 liters X 2 drops for every 5 liters=140 drops needed for the whole tank.

Since 1 cupful contains 40 drops, the we have this:

140 drops needed for the full tank/40 drops contained in one cup, or,

140/40=3 1/2=3.5 number of cupfuls needed for the full tank.

hopefully this helps

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb