On a given test with a maximum possible score of 100 points, the vast majority of the 259 students in a class scored either a pe
2 answers:
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The true statements are:
- 44/85 of the student surveyed do not ride the bus to school
- About 32% of the students are in the 9th grade
The false statements are:
- 64% of the students are 11th graders
- 134/150 of the students surveyed are in 9th or 10th grade
<u>The students that do not ride bus to school</u>
From the table, 220 students do not ride bus to school.
So, the proportion of students that do not ride bus to school is:
Simplify
Hence, this statement is true
<u>The 9th graders </u>
From the table, 134 students are 9th graders
So, the proportion of students that are 9th graders is:
Divide
Approximate, and represent as percentage
Hence, this statement is true
<u>The 11th graders </u>
From the table, 141 students are 11th graders
So, the proportion of students that are 11th graders is:
Divide
Approximate, and represent as percentage
Hence, this statement is false
<u>The 9th or 10th graders </u>
From the table, 134 + 150 students are 9th or 10th graders
So, the proportion of students that are 11th graders is:
Hence, this statement is false
Read more about two-way frequency table at:
Answer:
length of side = 10x + 3
Step-by-step explanation:
The area of a square = s² ( s is the length of the side )
given
A = 100x² + 60x + 9 ← perfect square in the form
(a + b)² = a² + 2ab + b²
100x² = (10x)² ⇒ a = 10x
9 = 3² ⇒ b = 3
and 2ab = 2 × 10x × 3 = 60x, hence
100x² + 60x + 9 = (10x + 3)²
s = = 10x + 3 ← length of side