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lisabon 2012 [21]
3 years ago
15

What is x in 2c-3=12-2c+7c

Mathematics
1 answer:
Eduardwww [97]3 years ago
7 0

Answer:

c=-5

Step-by-step explanation:

2c-3=12-2c+7c

2c-3=12+5c

2c-5c-3=12

-3c-3=12

-3c=12+3

-3c=15

c=15/-3

c=-5

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The scatter plot shows the study times and test scores for a number of students. How long did the person who scored 81 study?
Free_Kalibri [48]

Answer: Option A

50 minutes

Step-by-step explanation:

Observe in the diagram that the vertical axis represents the score obtained and the horizontal axis represents the study time.

To find out how many hours the person with a score of 81 studied, locate the point that is at a vertical distance of 81.

Now draw a vertical line from this point to the horizontal axis. Note that the vertical line traced intercepts the vertical axis at x= 50

Then the person who got a score of 81 studied 50 minutes

The answer is the option A

6 0
3 years ago
Kevin bought 3 dvds for 45.99 how much would 7 dvds cost?
Alecsey [184]

Answer:

I am pretty sure the answer would be $107.31. Sorry if I'm wrong.

Step-by-step explanation:

First you take the total of the 3 DVD's (45.99) and you divide that by 3 (number of DVD's) to get 15.33 which is called the unit price. Then, you take your unit price and multiply that by how many items you are going to buy.

45.99 / 3 = 15.33

15.33 x 7 = 107.31

6 0
3 years ago
What’s slope in this graph?
aniked [119]

Answer:

1/2 !

Step-by-step explanation:

Since it's going up, we know its positive, but if you use RISE/RUN, you would go up 1, then over two, from any point. That makes it 1/2! I went up from the y axis to the next point on the line. I hope that makes sense, but the answer is 1/2!

Have a nice day :D

4 0
3 years ago
What percent of 11 is 11?
jarptica [38.1K]

Answer:

100 %

Step-by-step explanation:

7 0
2 years ago
5(17+13) ÷(8-7) <br> Simply the expression
Scrat [10]
First expand by multiplying
Do 5 x 17=85
Then 5 x 13= 65
As them
85+65=150
8-7=1
150/1=150
Answer-150
8 0
3 years ago
Read 2 more answers
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