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HACTEHA [7]
3 years ago
11

Johnny wants to know how many students in his school enjoy watching science programs on TV he posted this question to all 26 stu

dents in His science class and he finds that 75% of his class and enjoyed watching science programs on TV he claims that 75% of the school student population would be expected to enjoy watching science programs on TV. Is johnny making a valid inference about this population
Mathematics
1 answer:
Dvinal [7]3 years ago
8 0
Yes Johhny is making a valid inference because he settled his inferences based on the votes. <span />
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Ron's mother bakes a pizza and divides it into 14 pieces. After serving 6 pieces to Ron and his friends, she has p pieces left.
Liono4ka [1.6K]
14-6=p
Or: 6+p=14
One of those should work :)
The answer is 8.
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3 0
4 years ago
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An antique store increases all of its prices by $40\%$, and then announces a $25\%$-off-everything sale. What percent of the ori
Mandarinka [93]

Answer:

105%

Step-by-step explanation:

We'll analyse the question one step at a time

Let the original price be x.

Let y be the 40% increase

y =x + 40\% *x

Express as decimal

y =x + 0.40 x

y =1.40x

Let z be the 25% off sale

z = (1 - 25\%) * y

Express as decimal

z = (1 - 0.25) * y

z = (0.75) * y

z = 0.75y

Substitute 1.40s for y

z = 0.75*1.40x

z = 1.05x

Express 1.05 as a fraction

z = 105\%  * x

<em>The percentage is 105%</em>

5 0
3 years ago
20 kilograms increased by 25%
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Answer:

25 kilograms

Step-by-step explanation:

4 0
2 years ago
4(6x−10)=8x+40 solve it for brainliest
lbvjy [14]

Answer:

x=5

Step-by-step explanation:

6 0
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Matching inequalities with statements
Xelga [282]

Answer:

closed, or shaded, circle is used to represent the inequalities greater than or equal to (≥) or less than or equal to (≤) . The point is part of the solution. An open circle is used for greater than (>) or less than (<). The point is not part of the solution.

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