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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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25 POINTS!!!!
Mandarinka [93]

1 is D

2 is C

3 is B

4 is C

4 0
3 years ago
100 POINTS ANSWER HURRY
choli [55]
X-3y=18
X always has a 1 in front of it so
1x-3y=18
-1x      -1x         You will have to get -3y by its self.
-3y=-1x + 18      when you move 1x over the = it turns into a -1x
/-3    /-3      /-3      divided everything by -3 to get y by its self
Y= 1/3 - 6            and that is you answer
4 0
3 years ago
Read 2 more answers
How much would the sales tax be on a $66 meal?
vovangra [49]

Answer:

$71.61

Step-by-step explanation:

66/22 = 3

3 · $1.87 = $5.61

$66 + $5.61 = $71.61

OR

$23.87 · 3 = $71.61

Sorry if this is wrong!

5 0
3 years ago
What’s the surface area of 5 inches and 7 inches
erik [133]

Answer:

Is the surface a rectangle?? If so, then the surface area would be 35

Step-by-step explanation:

5 * 7 = 35

Hope this helped!!  :)

5 0
3 years ago
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I need help on number 10 please!
hammer [34]

Answer: y = 4x/3 - 5/2

Step-by-step explanation:

The equation of a straight line can be represented in the slope intercept form as

y = mx + c

Where

c represents the y intercept

m = slope = (y2 - y1)/(x2 - x1)

The given line, L1 passes through A(6, - 7) and B(- 6, 2). The slope of line L1 is

m = (2 - - 7)/(- 6 - 6) = 9/ -12 = - 3/4

If two lines are perpendicular, it means that the slope of one line is the negative reciprocal of the slope of the other line.

Therefore, the slope of line L2 passing through the midpoint, M is 4/3

The formula determining the midpoint of a line is expressed as

[(x1 + x2)/2 , (y1 + y2)/2]

Midpoint, M = [(6 + -6)/2 , (- 7 + 2)/2]

= (0, - 5/2]

This means that the y intercept of line L2 is - 5/2

The equation of L2 becomes

y = 4x/3 - 5/2

4 0
3 years ago
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