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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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PLZ ANSWER ASAP WILL GIVE 50PTS if u explain and mark brainliest!!!!!!!
Vinil7 [7]

Answer:

Step-by-step explanation:

1.

\frac{5q+5p}{2} = 3+4p\\5q+5p = 6+8p \\5q = 6 +3p \\q = \frac{6+3p}{5}    ( a=3,b=6,c=5)

2. q-p = 3p +5

q = 4p+5

4p = q-5

p = (q-5)/4

3. y = 2a -bx^{2}

bx^{2} = 2a - y \\\\x^{2} = \frac{2a - y}{b} \\x = \sqrt{\frac{2a-y}{b}}

8 0
3 years ago
Read 2 more answers
the total weight of 6 pieces of butter and a bag of sugar is 3.8 Ib. if the weight of the bag of sugar is 1.4 Ib, what is the we
baherus [9]

0.4 lbs each.

<h3>Further explanation</h3>

<u>Given: </u>

  • The total weight of 6 pieces of butter and a bag of sugar is 3.8 Ib.
  • The weight of the bag of sugar is 1.4 Ib

<u>Question: </u>

What is the weight of each piece of butter?

<u>The Process: </u>

The two steps for obtaining the weight of each piece of butter are as follows:

<u>Step-1:</u> the total amount of butter is the total bag of butter and sugar subtracted by the weight of the bag of sugar.

\boxed{ \ 3.8 \ lbs - 1.4 \ lbs = 2.4 \ lbs \ }

<u>Step-2:</u> the total amount of butter divided by the number of pieces of butter is the the weight of each piece of butter.

\boxed{ \ 2.4 \ lbs \div 6 \ pieces = \boxed{ \ 0.4 \ lbs/piece \ } \ }

Let's also consider the following quick steps.

<u>Quick steps: </u>

\boxed{ \ \frac{(3.8 - 1.4) \ lbs}{6 \ pieces} = \boxed{ \ 0.4 \ lbs/piece \ } \ }

Therefore, the weight of each piece of butter is 0.4 lbs.

<h3>Learn more </h3>
  1. What is the cost of the toy car? brainly.com/question/5282516
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Keyword: the total weight, 6 pieces of butter, a bag of sugar is 3.8 Ib, if the weight of the bag of sugar is 1.4 Ib, each piece, subtracted, divide

5 0
3 years ago
Read 2 more answers
Help on question 5 please
Yakvenalex [24]

Answer:

LM+MN=LN

3x-5+x+7=17

4x=17+5-7

4x=15

x=15/4=3.75

LM= 3x-5=3*3.75-5=6.25

Step-by-step explanation:

7 0
3 years ago
SHOW ALL WORK<br> What is y
azamat

Answer:

Sir, I cant tell you the answer until I can see the equation, and the image provided isn't loading.

Step-by-step explanation:

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3 years ago
Lonnie threw 50 free throws and missed 16 of them. If Lonnie throws 75 free throws, what can be predicted about the number she w
aleksklad [387]

Answer:

51

Step-by-step explanation:

we know that

Lonnie threw 50 free throws and missed 16 of them

That means

Lonnie threw 50 free throws and was successful in 50-16=34

so

using proportion

\frac{50}{34}=\frac{75}{x}\\\\x=34(75)/50\\\\x= 51

therefore

If Lonnie shoots 75 free throws, she' ll successfully make 51 of them.

4 0
4 years ago
Read 2 more answers
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