365 times 8 = 2920 hr of sleep in a year
Note that a percentile tells us how many percents of numbers that are above the number at the percentile. So the 70th percentile tells us that 70% of the students are taller than Jake. That means 30% of the students are either at the same height or shorter than Jake.
30% of 1100 would be 0.3*1100 = 330.
So there are 330 students that are either at the same height or shorter than Jake.
Step-by-step explanation:
Option → D
Answer:
the height of the rectangular prism is 2cm
Step-by-step explanation:
the question says
volume of a rectangular prism equals 80cm³
the length of the rectangular prism is equals to 20cm
the width of the rectangular prism equals to 2cm
the height of the rectangular prism is unknown ?
solution
to find the height we will use the fomular of finding the volume of a prism
volume of a rectangular prism = length × width × height
80 = 20 × 2 × h
80 = 40h
divide both sides by 40
80/40 = 40h/40
2 = h
h = 2cm
therefore the height of the rectangular prism is 2cm
