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sladkih [1.3K]
3 years ago
12

Are the equations y – 5 = 2(x – 1)and y - 3 = 2(x + 3) the same equation? Explain​

Mathematics
1 answer:
steposvetlana [31]3 years ago
8 0

Answer:

No.

Step-by-step explanation:

y - 5 = 2(x - 1)

y = 2x + 3

y - 3 = 2(x + 3)

y = 2x + 9

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Kareem wants to find the number of hours the average sixth-grader at his school practices an instrument each week. Which is the
Klio2033 [76]

This question is incomplete because the options are missing; here is the complete question:

Kareem wants to find the number of hours the average sixth-grader at his school practices an instrument each week. Which is the best way Kareem can get a representative sample?

A. He can randomly survey 50 boys in the school.

B. He can survey 30 students in the school band.

C. He can randomly survey 50 6th graders in the school.

D. He can survey 20 friends from his neighborhood.

The correct answer is C. He can randomly survey 50 6th graders in the school.

Explanation:

A representative sample is a portion of a population that shows the characteristics of all the population. In this context, for a sample to be representative it needs to include only individuals of the population that is studied. Also, ideally, individuals should be selected randomly as this guarantees the sample is not influenced by the researcher. According to this, option C is the best as this is the only one that focuses on the target population (6th graders) and the sample is random, which contributes to the sample being objective and representing the behavior of 6th-graders.

4 0
3 years ago
This meal costs 11. The 5 coupon is applied, followed by a 7 sales tax rate. What is the total with the discount and tax?
lawyer [7]
This is probably wrong but my guess is 13 so maybe verify it but that’s my best!
3 0
3 years ago
Read 2 more answers
The spinner is divided into 10 equal sections. A spinner divided into 10 equal sections labeled 1 through 10. Which event has th
mr_godi [17]

Answer:

spinning a number less than 3

spinning a 4 or 5

spinning a number greater than 8

Step-by-step explanation:

spinning a number less than 3

P(1 or 2) = number of 1 or 2's / total = 2/10 = 1/5   true

spinning a 4 or 5 spinning

P(4 or 5) = number of 4 or 5's / total = 2/10 = 1/5   true

an odd number

P(odd number) = number of 1,3,5,7,9 s / total = 5/10 = 1/2   false

spinning a number greater than 8

P(9 or 10) = number of 9 or 10's / total = 2/10 = 1/5   true

spinning a number less than 8

P(less than 8) = number of 1,2,3,4,5,6,7's / total = 7/10 = false

5 0
3 years ago
Read 2 more answers
The sum of two numbers is 36 and the difference is 10. What are the numbers
Lady bird [3.3K]

Answer:

The 2 numbers are 13 and 23

Step-by-step explanation:

If 2 numbers are x and y we have:-

x + y = 36

x - y = 10

Adding:-

2x = 46

x = 23

So y = 36 - 23 = 13

3 0
4 years ago
Read 2 more answers
For what of X do the expression 2x +3 and 3x-6 have the same value ​
Llana [10]

Answer:

x=9

Step-by-step explanation:

2(9)+3

18+3=21

3(9)-6

27-6=21

when you plug in 9 for the x variable you will get the same end value

3 0
3 years ago
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