How many multisets of three positive integers have a mean of 9, a median of 11 and no mode?

ddd

step-by-step explanation:

55% are girls and 45% are boys : ) hope this

step-by-step explanation:

a

step-by-step explanation:

u take $30 minus $24. the answer/original($30)

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

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