(a) 32 orange marbles
the ratio of red : blue = 18 : 48 = 3 : 8 ( in simplest form )
the ratio of green : orange = 3 : 8 ( equal ratio )
divide green by 3 to obtain 1 part of ratio then multiply this value by 8 to obtain the amount of orange marbles
3 parts → 12
8 parts → 12 ×
= 32 orange marbles
The answer that I got was 4 for the interquartile range of the numbers. hope this helped and let me know if the answer is correct.
Answer:
2 and 4
Step-by-step explanation:
This is the only one where the two angles add up to 180 degrees, aka, a straight line.