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4 years ago

Answer quick for brainliest.

Mathematics

2 answers:

Ilya [14]4 years ago

8 0

Answer:

4) x = -11 5) x = 4 6) x = -5 7) x = -20

Step-by-step explanation:

Subtract 7 from both sides.

x+7-7 = -4-7

x = -11

Add 5 to each side.

x-5+5 = -1+5

x = 4

Add 7 to each side.

-7 + 7+x = -12+7

x = -5

Subtract 6 from each side.

6-6+x = -14-6

x = -20

olga2289 [7]4 years ago

5 0

Answer:

x=-11

x=4

x=-5

x=-20

Step-by-step explanation:

jsj

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Private colleges and university rely on money contributed

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Answer:

The point estimate for the mean endowment of all private colleges in the United States is 180.2125 million dollars.

Step-by-step explanation:

We are given endowments (in millions of dollars) of eight private colleges in the United States:

78.8, 50.3, 243.2, 489, 111.5, 163.7, 92.4, 212.8

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The point estimate will be given by the sample mean.

$\mu = \bar{x}$

Formula:

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3 years ago

Solve the system. 2x + y = −3 −2y = 6 + 4x Write each equation in slope-intercept form.

Fantom [35]

The slope-intercept form:

y = mx + b

m - slope

b - y-intercept

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2x + y = -3 subtract 2x from both sides

y = -2x - 3

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-2y = 4x + 6 divide both sides by (-2)

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