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Maurinko [17]
3 years ago
8

Plz helpppp:Tammy conducted a survey to find the favorite subject of the students at her school. She asked 25 students from her

math class what their favorite subje
is. Tammy concludes that math is the favorite subject of the students at her school because 60% of the students in her class like math.
Use at least two sentences to explain why Tammy's sample may not be valid. Make sure to use facts to support your answer.
Mathematics
1 answer:
alexira [117]3 years ago
3 0

Answer: Tammy's sample may not be vaild because she surveyed the students only from her class and it is likely that other classes might not like the subject maths. She might get the accurate results by surveying a larger number of people in the school instead of just her class.

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What is the contra positive of the statement if 9x=27, then x=3
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If 9x is not =27, then x is not =3

Step-by-step explanation:

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If 9x is not =27, then x is not =3

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7 0
3 years ago
9+3.5g=11-0.5g brainliest to whoever gives steps
kow [346]

Answer:

The answer is <u>g = 0.5</u>

Step-by-step explanation:

1. Your equation is :

<em>9+3.5g=11-0.5g</em>

2. First, multiply both sides by ten

<em>9 * 10 + 3.5 * 10 = 11 * 10 - 0.5 * 10</em>

3. Next we refine the equation

<em>90 + 35g = 110 - 5g</em>

4. Now, lets subtract 90 from both sides

<em>90 + 35g - 90 = 110 - 5g - 90</em>

5. Simplify

<em>35g + 5g = -5g + 20 + 5g</em>

6. We then add 5g to both sides

<em>35g + 5g = -5g + 20 + 5g</em>

7. Simplify again

<em>40g = 20</em>

8. Now, divide both sides by 40

<em>40g/40 = 20/40</em>

9. And finally, simplify once again to get your final answer.

<em>g = 1/2 or 0.5</em>

I hope this helped :)

7 0
3 years ago
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