3 years ago

The sum of twice a number and 28 equals 36 plus the number

Mathematics

2 answers:

juin [17]3 years ago

8 0

<span>2X+28=36+X
2X-X=36-28
X=8
thats the answer</span>

ValentinkaMS [17]3 years ago

7 0

2*8+28=36+8

16+28=36+8

44=44

You might be interested in

WILL GIVE BRAINLIEST

Alex

Answer:

Step-by-step explanation:

(3.14)(15*15)(315)=222548

5 0

3 years ago

Solve for x in the equation 2x^2-4x-9=29

Andrews [41]

Answer:

x = 1 ±2sqrt(5)

Step-by-step explanation:

2x^2-4x-9=29

Add 9 to each each side

2x^2-4x-9+9=29+9

2x^2-4x=38

Divide by 2

2/2x^2-4/2x=38/8

x^2 -2x =19

Complete the square

x^2 -2x + (-2/2)^2 = 19 +(-2/2)^2

x^2 -2x +1 = 19+1

(x-1)^1=2 = 20

Take the square root of each side

sqrt((x-1)^2) = ±sqrt(20)

x-1 = ±sqrt(20)

Add 1 to each side

x-1+1 = 1 ±sqrt(20)

x = 1 ±sqrt(20)

Simplifying the square root of 20

x = 1 ±sqrt(4)sqrt(5)

x = 1 ±2sqrt(5)

3 0

4 years ago

What Is the value of x

SCORPION-xisa [38]

Answer:

Step-by-step explanation:

5 0

3 years ago

4sinθ – 1 = - 3 for 0<θ< 360

EastWind [94]

Answer:

$\theta = 210^\circ$ or $\theta = 330^\circ$

Step-by-step explanation:

$4 \sin \theta - 1 = -3$

$4 \sin \theta = -2$

$\sin \theta = \dfrac{-2}{4}$

$\sin \theta = -0.5$

For sin θ = 0.5, the reference angle is θ = 30 deg.

$\sin 30^\circ = 0.5$

$\theta = 210^\circ$ or $\theta = 330^\circ$

7 0

3 years ago

Coffee beans are packaged in 50 kg cartons with an allowable error of 0.7% What is the acceptable weight range for a carton of c

goldfiish [28.3K]

0.35, you multiply 50 times 0.7%

6 0

3 years ago

Read 2 more answers