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3 years ago

What is 2+5x=7-3x equal step by step

2 answers:

6 0

Set the x’s equal to each other, so move them to the same side.
2+5x+3x=7
Now move the 2 over to set it equal to 7.
5x+3x=7-2
Add/Subtract as necessary.
5x+3x=8x
7-2=5
8x=5.
Divide to make the X stand alone to find the answer. x=5/8.
Your answer is 5/8ths.

Gemiola [76]3 years ago

4 0

Step 1:
Move the 3x to the leftbside by adding 3x to both -3x snd 5x. So you now have 2+2x=7

Step 2:
subtrac2 3 from both 7 and 2, so you know have 2x=5.

Step 3:
divide 2x and 5 by 2. You noe have the answer: x=2.5

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2 years ago

What is the height of the triangle? 12 units 24 units 36 units 72 units.

konstantin123 [22]

Height of the triangle is the altitude of the triangle and which is drawn perpendicular from the vertex of the triangle to the opposite side. The height of the tringle is 24 units. Hence option 2 is the correct option.

<h3>Given information-</h3>

The triangle for the given problem is shown in the image below.

Form the figure the length of the each side is $16 \sqrt{3}$ units.

As all the sides are equal thus the $\Delta MNO$ is a equilateral triangle in which the height of the divides the triangle into two equal part of the length $8\sqrt{3}$ at point <em>R.</em>

<h3>Height of the triangle-</h3>

Height of the triangle is the altitude of the triangle and which is drawn perpendicular from the vertex of the triangle to the opposite side.

Now in the $\Delta MRN$ , the length of the hypotenuse is $16 \sqrt{3}$ units and the length of the base is $8\sqrt{3}$ units. Let <em>h </em>is the height of the triangle thus by the Pythagoras theorem,

$(16\sqrt{3})^2 =(8\sqrt{3})^2+h^2$

Solve for <em>h,</em>

<em />

<em /> $\begin{aligned}h^2 &=(16\sqrt{3})^2 -(8\sqrt{3})^2\\h^2 &=16\times16\times3 -8\times8\times3\\h^2 &=576\\h &=\sqrt{576}\\h &=24\\\end$ <em />

<em />

Thus the height of the tringle is 24 units. Hence option 2 is the correct option.

Learn more about the equilateral triangle here;

brainly.com/question/4268382

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2 years ago

What are two ways you can find the surface area of a prism?

slega [8]

1. If the matching ends are triangles, find the area of the triangle (A=1/2bh)
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Hope that was helpful!!!

5 0

3 years ago

Read 2 more answers

Plz help ASAP, thanks

astraxan [27]

Answer:

Step-by-step explanation:

8·15·h=1440

120·h=1440

$\frac{120h}{120}$ = $\frac{1440}{120}$ (Divide both sides by 120)