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2 years ago

What is the value of r in the equation? Negative 1. 5 (4 minus r) = negative 12 –6 –4 4 6.

Mathematics

1 answer:

Debora [2.8K]2 years ago

5 0

Answer:

-458

Step-by-step explanation:

-1.5(4 - r) = -12 - 6 -446

-6 + r = -464

r = -458

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The sum of twelve and a number is no greater than the sum of twice the number and -8

krok68 [10]

The sum of 12 and a number
(12 + n)

is no greater
< =

then the sum of twice the number and 8
(2n +(-8)) = (2n - 8)

so we have :
(12 + n) < = (2n - 8)

4 0

3 years ago

Another for solving for x but much harder

gulaghasi [49]

Set up the equation so m<HCB + m<DCH = m<DCB

2x + 100 + 60 = x + 170
2x+ 160 = x +170
-x -x
x + 160 = 170
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x = 10

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2 years ago

10=Z+6 can u please solve it in evaluate the expression

Eva8 [605]

Answer: z=4

Step-by-step explanation:

Subtract 6 on both sides and 10-6=4 and then plug 4 into z and the equation is true

8 0

3 years ago

Read 2 more answers

Someone help me with this

neonofarm [45]

Answer:

-2

Step-by-step explanation:

-10 + 3 = -7

5 0

2 years ago

Read 2 more answers

Write in point-slope form an equation of the line through the pair of points. (3,12) and (5,9)

horrorfan [7]

Answer:

$\large\boxed{y=-\dfrac{3}{2}x+16\dfrac{1}{2}\to y=-1.5x+16.5}$

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (3, 12) and (5, 9).

Substitute:

$m=\dfrac{9-12}{5-3}=\dfrac{-3}{2}=-\dfrac{3}{2}$

Put the value of a slope and coordinates of the point (3, 12) to the equation of a line:

$12=-\dfrac{3}{2}(3)+b$

$12=-\dfrac{9}{2}+b$

$12=-4\dfrac{1}{2}+b$ add $4\dfrac{1}{2}$ to both sides

$16\dfrac{1}{2}=b\to b=16\dfrac{1}{2}$

Finally:

$y=-\dfrac{3}{2}x+16\dfrac{1}{2}$

4 0

2 years ago