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2 years ago

Using the following image solve for x

Mathematics

2 answers:

dangina [55]2 years ago

8 0

Answer:

x = -3

Step-by-step explanation:

x + 10 + x + 4 = 8

2x + 14 = 8

2x = -6

x = -3

Check:

2x + 14 = 8

2(-3) + 14 =8

-6 + 14 = 8

8 = 8

Papessa [141]2 years ago

7 0

Answer:

$\sf x=-3$

Step-by-step explanation:

CD + DB = CB

CD = x +10

CB = 8

$\sf (x+10)+(x+4)=8$

$\sf x+10+x+4=8$

Combine like terms.

$\sf x+x+10+4=8$

$\sf 2x+14=8$

Subtract 14 from both sides.

$\sf 2x+14-14=8-14$

$\sf 2x=-6$

Divide both sides by 2.

$\sf \cfrac{2x}{2}=\cfrac{-6}{2}$

$\sf x=-3$

_______________________

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svetlana [45]

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6 0

3 years ago

Eight times the sum of a number and 4 equals 3

BigorU [14]

The algebraic expression is: $8(x+4)=3$

And Value of x is: $x=\frac{-21}{8}$

Step-by-step explanation:

We need to write the expression of the statement:

Eight times the sum of a number and 4 equals 3

Let the number = x

The expression will be:

$8(x+4)=3$

Solving the expression to find value of x:

$8(x+4)=3\\8x+24=3\\Adding\,\,-24\,\,on\,\,both\,\,sides:\\8x+24-24=3-24\\8x=-21\\x=\frac{-21}{8}$

So, The algebraic expression is: $8(x+4)=3$

And Value of x is: $x=\frac{-21}{8}$

Keywords: Algebraic Expression

Learn more about Algebraic Expression at:

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3 0

3 years ago

Im stuck on this question helm me out I will mark you as brainliest

agasfer [191]

Answer: it is =4176000000000000

Step-by-step explanation:

(2.9)(100000)(7.2)(10^2)

5(10^−8)

(290000)(7.2)(10^2)

5(10^−8)

2088000(10^2)

5(10^−8)

(2088000)(100)

5(10^−8)

208800000

5(10^−8)

208800000

5(1/100000000)=

208800000/1

20000000

=4176000000000000

hope i helped

-lvr

8 0

3 years ago

Find the value of A A: 18 B: 21 C: 20 D: 17

AnnZ [28]

These are vertical angles so they are equal so

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3 years ago

Read 2 more answers

A contractor combined x tons of a gravel mixture that contained 10 percent gravel G, by weight, with y tons of a mixture that co

White raven [17]

Answer:

The value of x would be $\frac{3}{5}y$ or $\frac{3}{8}z$

Step-by-step explanation:

Given,

x tons of 10% gravel G mixture is mixed with y ton of 2% gravel G to obtain 5% gravel mixture,

Thus, gravel G in x ton + gravel in y ton = gravel G in the resultant mixture,

⇒ 0.1x + 0.02y = 0.05(x+y),

0.1x - 0.05x = 0.05y - 0.02y

0.05x = 0.03y

$\implies x = \frac{0.03}{0.05}y=\frac{3}{5}y----(1)$

Now, resultant mixture is z ton,

i.e. $z=x+y$

$\implies y = z - x$

From equation (1),

$x=\frac{3}{5}(z-x) = \frac{3}{5}z-\frac{3}{5}x$

$x+\frac{3}{5}x=\frac{3}{5}z$

$\frac{8}{5}x=\frac{3}{5}z$

$x=\frac{3}{8}z$

3 0

3 years ago