Answer:
75% students read less than 35 pages.
Step-by-step explanation:
The stem and leaf plot is given below
0 | 5 0 5 8
1 | 2 3 5 8 8 9
2 | 2 4 6 7 7 7
3 | 3 5 6
4 | 2 4 6
5 | 7
Count the students in each row.
Row 1 = 4 students
Row 2 = 6 students
Row 3 = 6 students
Row 4 = 3 students
Row 5 = 3 students
Row 6 = 1 student
Total students = 23 students
75% of 23 students = 0.75/100 · 23 = 12.25 students
75% of 23 students ≅ 17 students
From the stem and leaf plot, 17th student read 33 pages while 18th student reads 35 pages.
Which means
75% students read less than or equal to 33 pages.
OR
75% students read less than 35 pages
She made a mistake when she subtracted x1 from x2.
Step-by-step explanation:
Step 1 :
a)
The formula used by Lorena to calculate the slope between 2 points is correct
So the statement given in option 1 is not the reason for her mistake
Step 2:
b)
She has taken the fourth and fifth point and correctly used the x and y co ordinates to calculate the slope
Hence the statement in second option is not true
Step 3:
c)
While calculating the slope the denominator is -2 - (-4) . This gives 2 as the answer. But she has made a mistake in this subtraction giving -6 as the answer.
Hence she has made a mistake in subtracting x1 from x2 and this statement is true
Step 4:
d)
She has not made any mistake in subtracting y1 from y2. Hence this statement is not true
There are 2000 pounds in a ton so 22 times 2000 is 44000 pounds
there are 16 ounces in a pound so 13 times 16 is 208 ounces
there are 0.0005 tons in a pound so 24,000 times 0.0005 is 12 tons
Answer: 10 hours
Step-by-step explanation: so if you do 10 times 2.00 it equals 20 dollars or you can divide 20 and 2
