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puteri [66]
3 years ago
6

If 3x plus 2 equals 90 then what is the value of x

Mathematics
1 answer:
Firdavs [7]3 years ago
4 0

Hello!

3x+2=90

Explanation:

↓↓↓↓↓↓↓↓↓↓↓↓↓

First you had to subtract by 2 from both sides of the equation.

3x+2-2=90-2

Simplify

3x=88

Then you divide by 3 from both sides of the equation.

\frac{3x}{3}=\frac{88}{3}

Simplify it should be the correct answer.

x=\frac{88}{3}

Answer⇒⇒⇒⇒⇒x=88/3

Hope this helps!

Thank you for posting your question at here on Brainly.

Have a great day!

-Charlie

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PLEASEEEEE HELPPP!!! 
liubo4ka [24]

Hey!

Hope this helps...

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

To find the answer of this we will have to this we will have to add each of the answers together...

To find Volume of a Cylinder: π(r^2)h

To find Volume of a Cone: π(r^2)(h/3)


Givens for a Cylinder: r= 2, h=3

Givens for both Cones: r=2, h=3


Cylinder:

V= π(r^2)h

V= π(2^2)3

V= π(4)3

V= 12π


Volume of both Cones added together:

V= (π(r^2)(h/3)) * 2

V= (π(2^2)(3/3)) * 2

V= (π(4)(1)) * 2

V= (π4) * 2

V= 8π


Volume for Whole Shape:

12π + 8π = 20π cm^3


So...

The answer is: C.) 20π cm^3

5 0
3 years ago
Read 2 more answers
A 5kg book rests on a table. How much force is it exerting on the table?​
Yuri [45]

Answer:

49N

Step-by-step explanation:

a= 9.8

m= 5kg

F=?

F=ma

F=(5)(9.8)

F= 49 Newtons

4 0
3 years ago
Solve the system. If there is more than one solution, write the general solution. x + y - 2z = 9 3x + y + 2z = 15 x - 5y + 22z =
Margaret [11]

Answer:

<h2>x = (12-k)/2, y = k, z = (k-6)/4 </h2>

Step-by-step explanation:

Given the system of equation

x + y - 2z = 9 ... 1

3x + y + 2z = 15 ...2

x - 5y + 22z = -27... 3

First let us reduce the system of equation into two with two unknowns.

Subtracting 1 from 3

y-(-5y) + (-2z-22z) = 9-(-27)

y+5y + (-24z) = 9+27

6y-24z = 36 ... 4

Multiplying equation 1 by 3 and subtracting from equation 2

3x + 3y - 6z = 27

3x + y + 2z = 15

On subtracting both;

(3y-y)+(-6z-2z) = 27-15

2y-8z = 12 ... 5

Equating 4 and 5

6y-24z = 36 ... 4

2y-8z = 12 ... 5

Multiplying equation 5 by 3 the equation becomes;

6y-24z = 36 ... 6

6y-24z = 36 ... 7

We can see that equation 6 and 7 are the same;

let y = k

6k - 24z = 36

k - 4z = 6

4z = k-6

z = k-6/4

Substituting y = k and z = k-6/4 into equation 1 to get x

From 1; x + y - 2z = 9 ... 1

x + k -2( k-6/4) = 9

x + k - (k-6)/2 = 9

x = 9+(k-6)/2-k

x = {18+(k-6)-2k}/2

x = (12-k)/2

The solutions to the system of equations are x = (12-k)/2, y = k, z = (k-6)/4 where k is any constant. This shows that the system of equation has infinite solutions.

7 0
3 years ago
X^2-8x-36=0<br> solve by completing the square <br> ANSWER ASAP
larisa86 [58]

Answer:

hope it helps

7 0
2 years ago
Find the sum of -3x2 -4x+3 and 2x2-x+3
Alika [10]

Answer:

Assuming the 2 at the ends are the exponents,

the answer is -x^2-5x+6 (x^2+5x-6)

from here, it cannot be simplified more

Explanation --

Just add everything by putting the terms in parentheses and adding them.

Keep simplifying by putting the like terms together and adding/subtracting them.

At the end, you come up with -x^2-5x+6, so multiply -1 on the whole thing (by putting parentheses on its sides. This makes x positive. But they are the same thing, but this step is just for simplifying the end product a little more.

Hope this helps!! Have a nice day!

5 0
2 years ago
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