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kumpel [21]
3 years ago
9

If 2x-3(x+4)=-5 then x=

Mathematics
1 answer:
Mrrafil [7]3 years ago
5 0
2x - 3(x + 4) = -5
2x - 3x - 12 = -5
-x - 12 = -5
-x = -5 + 12
-x = 7
x = -7

The answer is: x = -7.
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An airplane flies 600 km in 1 hour. What is it’s average speed in kilometers per hour.
Gnoma [55]
600km??? Because it’s travelling 600km and hour so it’s average is 600km and hour
6 0
3 years ago
A car seller buys a car from a manufacturer for $10,000. He increases the cost by 5 percent. What is the markup amount?
torisob [31]
We know that:

The markup is the price added to the cost price of goods...

To find the markup, we must multiply the percent increase by the original price (before markup).

So:

10,000 x 5% (or 0.05) = ?

10,000 (You do not have to follow my way of multiplying, do what is comfortable for u)
x       5 (Ignore the decimals then we move it after we get the answer) 
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50,000 move the decimal back 2 places so it is 500

The final answer is:

The markup amount is $500...




3 0
3 years ago
Pls help me asap!!!!
RUDIKE [14]

Answer:b

Step-by-step explanation:y=2x-3

5 0
3 years ago
Let A {a, b, c, d}. Find the power set of A, PA
Nina [5.8K]

A=\{a,b,c,d\}\\|A|=4\\\mathcal{P}(A)=2^4=16

8 0
3 years ago
Please help. Could you explan your answer also? thanks
natulia [17]
Answer: Choice B) -4

The lower quartile, also known as Q1 or the first quartile, is the left edge of the box. In this case, that is at -4. We can drop a vertical line from the left edge of the box until we hit -4 on the number line. 

Side Note: 25% of the data values are below Q1, while 75% of the data values are above Q1
4 0
4 years ago
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