2 years ago

-3/8a + 3.2b + (-6b) -1/4a ASAP

Mathematics

1 answer:

pickupchik [31]2 years ago

5 0

Answer:

Step-by-step explanation:

=-0.625a-2.8b

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oksian1 [2.3K]

Answer:

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Step-by-step explanation:

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2 years ago

Graph the equation <br><br>2x + 3y = 9

jeka57 [31]

$2x + 3y = 9\\3y = -2x + 9\\y = -\frac{2}{3}x + 3$

Look at the graph picture I attached

$y = mx + c$

c is the intercept, which is why the graph crosses the y-axis at +3

to find where it crosses the x-axis, we make y = 0

$y = 0\\\to -\frac{2}{3}x + 3 = 0\\-\frac{2}{3} = -3\\\frac{2}{3}x = 3\\2x = 9\\x = \frac{9}{2}\ \ (=4.5)$

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2 years ago

Systems of equations, help please?

lord [1]

4x + 3y = 54 (1)
3x + 9y = 108 (2)

Multiply (1) by (-3)
-12x - 9y = -162
3x + 9y = 108
---------------------add
-9x = -54
x = 6

plug x = 6 into (1) to find y
4(6) + 3y = 54
24 + 3y = 54
3y = 30
y = 10

Answer
(6 , 10)

Hope it helps.

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3 years ago

Find the mean, median, mode, and range of the data 10, 13, 7, 6, 9, 4, 6, 3, 5

elena-s [515]

Median is 6 range is 9 mode is 6 and mean is 7

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2 years ago

What slope does a horizontal line have?

ioda

Answer:

Step-by-step explanation:

Horizontal

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3 years ago

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