<span><u><em>Answer:</em></u>
1. 3x = y
2. 7x= y.
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<u><em>Explanation:</em></u>
If x is the amount of points each question that is answered correctly received then the coefficient that x is multiplied by will be the amount for each test.
For the first equation we have 3 as the amount answered correctly time x the points each one is worth = total points y.
For the second equation we have 7 as the amount answered correctly time x the points each one is worth = total points y .
</span></span>
Answer:
The new pyramid has a volume that is half the volume of the original pyramid.
Step-by-step explanation:
The volume of a pyramid is given by the following equation:
In which h is the height, l is the length and w is the width.
Modified volume:
height doubled, length and width cut in half. So
= 0.5V[/tex]
That is
The new pyramid has a volume that is half the volume of the original pyramid.
Answer:
.
Step-by-step explanation:
A biased example: Asking students who are in line to buy lunch
An unbiased example: Asking students who are leaving/going to lunch(<em>NOT buying </em><em>lunch</em><em />).
But in this case, the answer choices can be... confusing.
Don't panic! You're given numbers and, of course, your use of logic.
Answer choice A: 100 students grades 6-8
Answer choice B: 20-30 students any <em>one</em> grade<em></em><em>
</em>Answer choice C: 5 students
<em></em>Answer choice D: 50 students grade 8
An unbiased example would be to choose students from <em>any grade.</em> So we can eliminate choices B and D.
Now, the question wants to <em>estimate how many people at your middle school buy lunch.</em> This includes the whole entire school, and if you are going to be asking people, you aren't just going to assume that if 5 people out of 5 people you asked bought lunch, the whole school buys lunch.
So, to eliminate all bias and/or error by prediction, answer choice A, the most number of students, is your answer.
Y/x=k 48/8=6=k k is the constant y/4=6 y=24
