A jewellery store sells diamond earrings: small earrings (no more than 1 carat of diamonds) and large earrings (more than 1 carat.
of diamonds).
They sell at least four pairs of small earrings for every pair of
large earrings
They also sell no more than 120 pairs of earrings, in total,
• The small earrings sell for about $800 a pair, and the large earrings
sell for about $1500 a pair.
What combination of the two categories of earrings should they try to
sell to maximize their revenue. What amount of sales can they expect?
per month

How many grams must be adde to 970g to make 1 and a half kg

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k