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3 years ago

Please help me, thanks!

Mathematics

2 answers:

marishachu [46]3 years ago

8 0

This exercise is asking you to find the value of b or solve for b, to do so you have to isolate or leave b alone by doing different mathematical operations according to the given equation.

The given equation is 12b+b-4b+3=12, which is a three step equation meaning that in order to solve for b you have to perform three different mathematical operations, in this case combining of like terms, subtraction, and division.

12b+b-4b+3=12 Combine like terms
9b+3=12 Subtract 3 in both sides
9b=9 Divide by 9 in both sides to isolate b
b=1

The value of ''b'' by which this equation is true is 1.

Elena L [17]3 years ago

3 0

STEPS:

1. Add and subtract the same variables
2. Subtract 3 from 12
3. Divide whatever you got from 12-3 by your answer from step 1 (12-3 / b)
4. b = ?

Hope this helps! Please ask questions if you have any.

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The triangular prism has a volume of 27 cubic units. A triangular prism. What will be the volume of the prism if each side is di

oksian1 [2.3K]

Answer:

Option (2)

Step-by-step explanation:

Volume of a prism A (preimage) = 27 cubic units

Factor of dilation of the sides of this prism (image) = $\frac{1}{3}$

Volume scale factor of these prisms = $\frac{\text{Volume of image}}{\text{Volume of preimage}}$

Since, Volume scale factor = (Scale factor of dilation of the sides)³

= $(\frac{1}{3})^3$

= $\frac{1}{9}$

Now from the formula of volume scale factor,

$\frac{1}{9}=\frac{\text{Volume of image}}{\text{Volume of preimage}}$

$\frac{1}{9}=\frac{\text{Volume of image}}{27}$

Volume of the image prism = $\frac{27}{9}$ = 3 cubic units

Therefore, Option (2) will be the answer.

4 0

4 years ago

Slope is -2 and y-intercept is -6 how do I write the linear equation in slope intercept form

PtichkaEL [24]

You need to write it in the form y = mx +b
since slope is m and b is the y-intercept, it would be written as y = -2x + -6

I hope this helped :)

4 0

3 years ago

If 2b=30p, why is p=15b?

patriot [66]

Answer:

It's not. b = 15p

Step-by-step explanation:

The <em>division property of equality</em> says you can divide both sides of an equation by the same number without changing the values of the variables. When we divide both sides of the given equation by 2, we get ...

2b/2 = 30p/2

b = 15p . . . . . . . simplify

7 0

4 years ago

A betta fish tank is in the shape of a cube. The volume of the fish tank is 216

GarryVolchara [31]

To find this answer, we need to understand how to get the Volume.

We get the volume by the formula: L x W x H

L = Length

W = Width

H = Height

So, we can see that there are 3 units required to know for getting the volume, if that's true, then, to do the inverse operation of finding the volume. That can be done by using thie formula:

$V=a^3$

a= edge

Solving for a

a=V⅓=216⅓=6

<h2>So hence, each of the Cube shaped Fish Tank is 6in³</h2>

now, let's look at how to find whether our answer is right or wrong

6x6=36

36x6=216

So hence, our answer is right!

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6 0

3 years ago

ZA and ZB are vertical angles. If mZA = (4x + 14) and mZB = (5x – 5)°,

ivolga24 [154]

Answer:

90°

Step-by-step explanation:

Since they are vertical angles, they equal eachother

4x+15=5x-5

add the 5 to both sides

4x+19=5x

subtract the 4x from both sides

x=19

Then you have to plug in 19 to find the measure of ZA

4(19)+14

76+14

6 0

4 years ago