Let M represent the cost of a whiteboard marker.
10(3M + $2.75) = $177.50
3M + $2.75 = $17.75
3M = $15
M = $5
Hence, each whiteboard marker cost $5.
2x-8=5x+5
5x-2x=-8-5
3x=-13
x=-13/3,
or
x=-4 1/3
Probability that the questions are answered corectly1/4 = 0.25
probability that they are answered wrong 3/4 = 0.75
probability that 4 out of 7 are corect 7C4(0.25)4(0.75)3 which equals 0.0577
4, and 6. Because 4 is a common factor of 24, and it is also the least factor. Same thing with 36. Remember: 4 x 6 = 24 and 6 x 6 = 36. Hope this helps!
The answer is 7.333, the threes are ongoing.
To find this answer you would just divide 44 and 6, since you are trying to find groups of the number stated.
Hope that helped.
