is the proportion of tires that are defective so
so we would expect around 1600 tires to be defective
Excerpt from a school newspaper:
2 answers:
Answer:
A
Step-by-step explanation:
- During 2008-2009 session, 20% of students were in A-B Honor Roll.
- During 2009-2010, 200 out of 1000 students were in A-B Honor Roll. What's that in percentage? We divide 200 by 1000 and then multiply by 100:
So, that's also 20%. That's the same as 2008-2009 session, so the principal is wronged!
Option A is correct: "<em><u>A) There was no change in the number of students on honor roll from one year to the next."</u></em>
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is the proportion of tires that are defective so
so we would expect around 1600 tires to be defective
(See the imagine for reference)
Let’s solve where they have a triangle, so the height is 9 cm, the base is 3 cm:
1/2 • 9 • 3 = 13.5
Since there’s 2 triangles we do:
13.5(2) = 27
Now the rectangle in the middle, where the height is 9cm and the base is 12cm:
12 • 9 = 108
Add up the areas:
108 + 27 = 135
Let’s solve where they have a triangle, so the height is 9 cm, the base is 3 cm:
1/2 • 9 • 3 = 13.5
Since there’s 2 triangles we do:
13.5(2) = 27
Now the rectangle in the middle, where the height is 9cm and the base is 12cm:
12 • 9 = 108
Add up the areas:
108 + 27 = 135