-1/2x - 3 =4
which is the value of x?

Answer:

x=-3 is not a solution

Step-by-step explanation:

well, lets plug it and and see!

6(-3)-19=3(-3)-10

-18-19=-9-10

-37=-19

-37 DOES NOT equal -19.

so x=-3 is not a solution

hope this helped! :)

Answer:

30 cm

Step-by-step explanation:

1. Given the length, width and tallness discover the volume, surface region and inclining of a rectangular crystal  

h, l and w are known; discover V, S and d  

V = lwh  

S = 2(lw + lh + wh)  

d = √(l2 + w2 + h2)  

2. Given the surface region, length and width discover the tallness, volume and askew of a rectangular crystal  

S, l and w are known; discover h, V and d  

h = (S - 2lw)/(2l + 2w)  

V = lwh  

d = √(l2 + w2 + h2)  

3. Given the volume, length and width discover the stature, surface territory, and slanting of a rectangular crystal  

V, l and w are known; discover h, S and d  

h = V/lw  

S = 2(lw + lh + wh)  

d = √(l2 + w2 + h2)  

4. Given the inclining, length and width discover the tallness, volume and surface space of a rectangular crystal  

d, l and w are known; discover h, V and S  

h = √(d2 - l2 - w2)  

V = lwh  

S = 2(lw + lh + wh)

Answer:

The third one

Step-by-step explanation:

if its not that one then its the first one

Answer:

D

Step-by-step explanation:

8 * 5 * 11 = 440

Answer:

x+23

Step-by-step explanation:

3x+18-2x+5

3x-2x=x

18+5=23

x+23

Answer:

D must be the answer

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

300 * 0.4= 120

300*0.5 = 150

150+120=270

300-270=30

0=(-9)

Step-by-step explanation:

4x + 7 = -2 + 4x

4x + 7 = 4x -2

subtract 7 from both sides of the equation.

simplify your answer.

subtract 4x from both sides of the equation.

simplify your answer again.

4x + 7 = 4x -2

___-7 = 4x -7

4x __ = 4x -9

__4x = 4x -9

-4x = -4x -9

__0 = -9

the input is a contradiction: it has no solutions.

Answer:

65

Step-by-step explanation:

Base by High

then divided by 2

Answer:

The equation is;

4(2.5x-3) = 3(2x-2)

The value of x is 1.5

Step-by-step explanation:

Mathematically, the perimeter of a square is simply the product of the length of the side and 4

Secondly, the perimeter of an equilateral lateral triangle is the product of the length of its side and 3

Thus, mathematically, we have it that;

4(2.5x-3) = 3(2x-2)

10x - 12 = 6x -6

10x -6x = -6 + 12

4x = 6

x = 6/4

x = 1.5

Answer:

the average number of subscribers to the online magazine in 2010 was 320,000

Answer:

try looking for it in the settings

Step-by-step explanation:

can that helps

Answer:second choice

Step-by-step explanation:they would match up

Answer:

the probability of choosing a yellow marble is about 27%, while the probability of blue is 20%.

Step-by-step explanation:

6+8+5+11=30

8/30=0.266666666666

6/30=0.2

Answer:

We note that the equation that is compatible with the given equation is the kinematic equation of free fall where;

t² = 39.2 × 2/9.81

From which we have;

The time it takes the snowball to reach the ground is approximately 2.83 seconds

Step-by-step explanation:

The height of the building from which the ball is dropped, h = 39.2 m

The equation of the dropped a snowball, is given as follows;

t² = 39.2 × 9.8

Using the From the equation of free fall, we have;

s = u·t + 1/2·g·t²

Where;

u = The initial velocity = 0 m/s

t = The time of flight

g = The acceleration due to gravity = 9.81 m/s²

Therefore, we get;

∴ s = The height from which the snowball is dropped = 39.2 m

Therefore, we get;

39.2 = 0×t + 1/2×9.81×t²

∴ t² = 39.2 × 2/9.81  ≈ 7.99

t = √(7.99) ≈ 2.83

The time it takes the snowball to reach the ground, t ≈ 2.83 s.

Answer:

2 seconds

Explanation:

I had to do this assignment that's the correct answer

Answer:

2x+5

Step-by-step explanation:

Formula for the perimeter of a reactangle= 2(l+b)

So,

2(l+b) = 10x+18

2(3x+4 + b) = 10x+18

Rearrange and solve

3x+4+b = 5x+9

b = 5x+9 - 3x - 4

b = 2x+5

Thus the measurement of the width = 2x+5

Hope this helps

Answer:

5, -28, 10.4, -.875, 0, 8003

Step-by-step explanation:

Answer:

m = 5.3

Step-by-step explanation:

Given equation,

→ m = 0.4n - (2/3)

Now we have to,

→ Find the required value of m.

We have to use,

→ n = 15

Then the value of m will be,

→ m = 0.4n - (2/3)

→ m = 0.4(15) - (2/3)

→ m = 6 - (2/3)

→ m = (18/3) - (2/3)

→ m = (18 - 2)/3

→ m = 16/3

→ [ m = 5.3 ]

Hence, the value of m is 5.3.

Answer:

The ratio of pizzas with to without pepperoni is 8:2

Step-by-step explanation:

I hope this helps more than that person with the link!

Answer:

9/8

Step-by-step explanation:

When dividing by fractions, you take the first number and multiply it by the reciprocal of the second number.

so in this case, 6/8 times 3/2

18/16

9/8

Answer:

The answer is D.

Step-by-step explanation:

Answer:

Ive done those before the first one is 7 and the second one is 4

Step-by-step explanation:

Answer:

B. 50 degrees

Step-by-step explanation:

I am not 100% sure and if this is a right triangle, then it's measure is 90 degrees. So, 140 degrees minus 90 degrees would total, 50 degrees.

Answer:

B: 50 degrees

Step-by-step explanation:

You first find the other angles of the triangle. One is 90 degrees at the corner. The other would be 40 because the outside angle is 140 and that is 40 away from 80. Add 40 and 90 together to get 130 degrees. Subtract that from 180 and that is 50 degrees :)

Hope this helps!

Answer:

4 cats

Step-by-step explanation:

Since Charlie has 8 times as many cats as Waylon you should divide Charlie's number by 8. 32/8=4 so Waylon has 4 cats.

Answer:

4(3+x)

Step-by-step explanation:

12+4x = 4(3+x)

Answer:

S = 6

I think

Answer:

s=6

Step-by-step explanation:

if you are figuering it out in order then r=26 then you subtract 10 and get h=16 so then you subtract 6 more and get s=6

[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]

A. f(x)=(x+5)(x-1)

Answer: 0.4

Step-by-step explanation:

If the height of the first bounce is 5.5, then you find what 60% of 5.5 is and to do that you do 60/100 and x/5.5 so cross multiply 60x5.5 to get 330 then divide by 100 to get 3.3 and you do that 5 more times to get 0.42768 which when rounded to the tenths place, gets you 0.4

Answer:

x= 171 y=205

(171,205)