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Paraphin [41]
3 years ago
13

List 3 ways you can use an answer key effectively

Mathematics
1 answer:
kondaur [170]3 years ago
3 0

practise new problem

check your answers

share

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3x − x − 1 = 15<br> What is x
azamat

Answer: x=8

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

3x−x−1=15

3x+−x+−1=15

(3x+−x)+(−1)=15(Combine Like Terms)

2x+−1=15

2x−1=15

Step 2: Add 1 to both sides.

2x−1+1=15+1

2x=16

Step 3: Divide both sides by 2.

2x /2 = 16 /2

x=8

4 0
3 years ago
Read 2 more answers
Marie made the box plot below to display a set of data. Which set of data could the box plot represent?
Assoli18 [71]

Answer:

  see below

Step-by-step explanation:

First of all, you want to find the data set the matches the extreme values of 5 and 35. That eliminates the 2nd and 4th choices.

Then you want to find the data set that has a median of 15. The first data set has a middle value (median) of 20, so that choice is eliminated.

The data set of the 3rd choice matches the box plot extremes, median, and quartile values.

7 0
3 years ago
2. What is the domain of the relation {(3, 4), (4,3), (4,4), (5,2))?
VLD [36.1K]

Answer:

B

Step-by-step explanation:

In the set of ordered pairs {(3, 4), (4, 3), (4, 4), (5, 2)}, the domain is the set of the first number in every pair (those are the x-coordinates): {3, 4, 5}.

6 0
3 years ago
A store has a 20% off sale on pants. With this discount, the price of one pair of pants before tax is $15.20. What was the origi
suter [353]

Answer:

B 12.16 that is how much the original price was

7 0
3 years ago
Read 2 more answers
Plz help... need it quick
erik [133]

Answer:

id say the big triangle and the rectangle

Step-by-step explanation:

sorry if im wrong

4 0
3 years ago
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