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3 years ago

How to solve the equation 8b - 12 = 5b

Mathematics

1 answer:

Virty [35]3 years ago

4 0

Answer:

b = 4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Equality Properties

Step-by-step explanation:

Step 1: Define equation

8b - 12 = 5b

Step 2: Solve for b

Subtract 5b on both sides: 3b - 12 = 0
Add 12 on both sides: 3b = 12
Divide 3 on both sides: b = 4

Step 3: Check

Plug in b to verify it's a solution.

Substitute: 8(4) - 12 = 5(4)
Multiply: 32 - 12 = 20
Subtract: 20 = 20

And we have our final answer!

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3 years ago

Is 4/6 = 9/12 not proportionate

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3 years ago

Jane is making a suit which requires 2 5⁄8 yards for the jacket and 1 3⁄4 yards for the skirt. What's the total amount of materi

Ann [662]

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4 years ago

Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. A rocket is launched from atop a

umka2103 [35]

When it hits the ground, then h=0
find the xintercept or in this case the tintercepts
c=76
v=135

h=-16t^2+135t+76
use quadratic formula

ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^2-4ac} }{2a}$

a=-16
b=135
c=76

x= $\frac{-135+/- \sqrt{135^2-4(-16)(76)} }{2(-16)}$
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x= $\frac{-135+/- \sqrt{23089} }{-32}$
aprox
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exclude the negative root since you can't have negative time

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4 0

3 years ago

Please please help me- thank you

tester [92]

Answer:

y=2x+7

Step-by-step explanation:

The slope of the new line is 2 because that is the opposite of -1/2

To find the equation of the line, plug the points (-2,3) into point-slope form:

y-y1=m(x-x1).

y-3=2(x+2)

Multiply (x+2) by 2 and simplify to get the final answer.

y-3=2x+4

y=2x+7

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3 years ago