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Troyanec [42]
3 years ago
13

Solve for x.

Mathematics
1 answer:
nataly862011 [7]3 years ago
5 0
I think B is correct answer
You might be interested in
Solve. -7x+29=6(8+3x)<br> x=
Otrada [13]

Answer:

x = -0.76

Step-by-step explanation:

-7x + 29 = 6 (8 + 3x)

-7x + 29 = 48 + 18x

-7x = 48-29 + 18x

-7x = 19 + 18x

-7x-18x = 19

-25x = 19

x = 19/-25

x = -0.76

8 0
3 years ago
A chemist is using 358 milliliters of a solution of acid and water. If 13.5% of the solution is acid, how many milliliters of ac
Xelga [282]

Answer:

48 milliliters

Step-by-step explanation:

13.5% of 358 is 48

6 0
3 years ago
One number is one more than a second number. Five times the first is 3 less than 6 times the second. Find the numbers.
TiliK225 [7]

The value of the first number is 9 , and

the value of the second number is 8 .

In the question ,

statements about two numbers is given ,

let the first number be x ,

let the second number be y .

According to the first statement " One number is one more than a second number "

translating it into the equation form , we get

x=y+1      ...(i)

According to the second statement which states " Five times the first is 3 less than 6 times the second "

translating it into the equation form , we get

5*x = 6*y - 3

5x = 6y - 3

Substituting the value of x from equation (i) , we get

5(y+1) = 6y - 3

5y + 5 = 6y - 3

6y-5y = 5+3

y = 8 ,

substituting  y=8 in the the equation (i) ,

x = 8 + 1

x = 9

hence the first number = 9  and the second number = 8 .

Therefore , the value of the first number is  9, and

the value of the second number is 8 .

Learn more about Equations here

brainly.com/question/24267899

#SPJ1

8 0
1 year ago
An artist plans a sculpture by stacking two cubes. Write an algebraic expression the artist can use to find the volume of the sc
vesna_86 [32]

Answer:

V= 2x^3

The volume is 128cm^3

Step-by-step explanation:

Given

Cubes = 2

Sides = 4cm

Required

Determine an expression for its volume

Find the volume

Volume of a cube is:

Volume = x^3

Where x represents the length of a side

So, volume of 2 cubes would be:

V= x^3 + x^3

V= 2x^3

Solving (b): Volume when x = 4

Substitute 3 for x in V= 2x^3

V = 2 * 4^3

V = 2 * 64

V = 128

<em>Hence, the volume is 128cm^3</em>

5 0
3 years ago
The angles of elevation of an airplane between two observation points, A and B, are 30 ° and 45 ° respectively. If the vertical
Serjik [45]

Answer:

xA = 10 km

xB = 7.071km

Step-by-step explanation:

A/Q

p=5km

For point A

∅ = 30°

sin ∅ = p/h

sin 30° = 5/h

1/2 = 5/h

h = 5×2

h=10km

For point B

sin ∅ = p/h

sin 45° = 5/x

1/√2 = 5/x

x = 5 × √2

x = 7.071 km

.: Points A and B are 10 km and 7.071 km away from the airplane.

4 0
3 years ago
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