Z score = (x -mean) / standard deviation.
For this problem X = 50 cm.
Z-score = (50 - 49.2) / 1.8
Z score = 0.8 / 1.8
Z score = 0.44
Look up 0.44 on a z-score table.
0.44 = 0.6700
0.67 x 100 = 67% will be 50 cm or longer.
Answer:
1250
Step-by-step explanation:
30,000/24
divide both sides by 24 to get 1250.
1. Combining like terms
2. Combining
You would set the equations equal to eachother and get x=-5/4 and then plug that in for x, i hope this helps!
