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Dmitry_Shevchenko [17]
3 years ago
6

n the United States, the average public school teacher currently earns an annual salary near $55,202. Reported national average

salaries for the last six decades are listed below. Year National Average Teachers’ Salary 1960 $4,995 1970 $8,626 1980 $15,970 1990 $31,367 2000 $41,807 2010 $55,202 Determine the average salary increase per year between the years 1980 and 1990. $1,539.70 $8,367.80 $2,566.20 $1,004.10
Mathematics
1 answer:
julsineya [31]3 years ago
6 0
What the heck I am so confused
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Need help ASAP, willing to give brainliest to the best answer!
sveta [45]
1. 70, 2. None, 3. Mike
6 0
3 years ago
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3x+112=5x+100 what is the answer I don't get it
slega [8]
Reorder the terms
112 + 3x = 100 + 5x
112 + 3x + (-5x) = 100 + 5x + (-5x)

Combine the like terms
5x + (-5x) = 0
112 + (-2x) = 100 + 0
112 + (-2x) = 100

112 + (-112) + (-2x) = 100 + (-112)
Combine like terms again
112 + (-112) =0
0 + (-2x) = 100 + (-112)
100 + (-112) = (-112) = (-12)
-2x = -12
-12 / -2 = 6
x = 6 <span>✓</span>

Check your work
3 * 6 + 112 = 130
5 * 6 + 110 = 130
130 = 130 ✓
3 0
3 years ago
Which equation represents the standard form of the equation y= (x + 3)² - 4?
lilavasa [31]

Answer:

The answer is B. y = x^2 + 6x + 5

Step-by-step explanation:

Because y = (x + 3)^2 - 4 = x^2 + 6x + 9 - 4 = x^2 + 6x + 5

So the answer in this question is B.

4 0
2 years ago
How many reflectional symmetries does a regular decagon have ?
pentagon [3]
The answer to this is ten.

6 0
3 years ago
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If f(x) = 4 – x2 and g(x) = 6x, which expression is equivalent to (g – f)(3)?
NNADVOKAT [17]
f(x) = -x^2 + 4

g(x) = 6x

(g - f)(3) = 6(3) - (-(3)^2 + 4)

(g - f)(3) = 18 - (-9 + 4) 

(g - f)(3) = 18 - (-5)

(g - f)(3) = 18 + 5

(g - f)(3) = 23
3 0
2 years ago
Read 2 more answers
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