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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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All-purpose carpeting costs $27.50 per square meter. What is the cost of carpeting a room from
Brums [2.3K]

Step-by-step explanation:

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4 0
2 years ago
Find the value of x
AURORKA [14]
Hello Alondra,

To solve this problem, you have to write a proportion using the ratios formed by the similar triangles.

Or proportion can be:
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MrEQ
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3 years ago
Line BC has an equation of a line Y equals 2X +3 and F has an equation of a line Y equals -1/2 x+4 these two equations represent
Masja [62]

Answer:

Lines BC and F represent perpendicular lines

Step-by-step explanation:

we have

<em>Line BC</em>

y=2x+3

the slope of the line BC is m=2

<em>Line F</em>

y=-(1/2)x+4

the slope of the line F is m=-1/2

we know that

If two lines are perpendicular, then the product of their slopes is equal to -1

so

m1*m2=-1

we have

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m2=-1/2 -----> slope line F

Find the product of their slopes

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