All categories

3 years ago

-8 = 2y – 2 answer please

Mathematics

2 answers:

emmasim [6.3K]3 years ago

8 0

Y=-3
Add 2 to both sides the -2 &-8
-8 becomes -6 then divide by 2
Y=-3

Rufina [12.5K]3 years ago

3 0

Answer:

y = -3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Step-by-step explanation:

Step 1: Define

-8 = 2y - 2

Step 2: Solve for y

[Addition Property of Equality] Add 2 on both sides: -6 = 2y
[Division Property of Equality] Divide 2 on both sides: -3 = y
Rewrite/Rearrange: y = -3

Step 3: Check

Plug in y into the original equation to verify it's a solution.

Substitute in y: -8 = 2(-3) - 2
Multiply: -8 = -6 - 2
Subtract: -8 = -8

Here we see that -8 does indeed equal -8.

∴ y = -3 is the solution to the equation.

You might be interested in

Question 1 of 8

Rom4ik [11]

I hope this helps you V=2RH H=V/2R

6 0

3 years ago

1) At AJ Welding Company they employ 253 people, 108 employees receive 2 weeks of paid 1) _______ vacation each year. Find the r

Fantom [35]

Answer:

108 : 145

Step-by-step explanation:

253 - 108 = 145

Ratio of those who receive 2 weeks of paid vacation is 108

Ratio of those paid vacation is not 2 weeks is 145

108 : 145

5 0

3 years ago

Help with proving the following

Galina-37 [17]

Hello and Good Morning/Afternoon

Let's take this problem step-by-step:

First step

⇒ consider the fact cotθ = 1 / (tanθ)

$\frac{1+tanx}{1+cotx} =\frac{1+tanx}{1+\frac{1}{tanx} }$

Second step

⇒ form a common denominator for the fraction in the 'denominator'

$\frac{1+tanx}{1+\frac{1}{tanx} } =\frac{1+tanx}{\frac{tanx+1}{tanx} }$

Let's flip over the fraction on the denominator

$\frac{1+tanx}{\frac{tanx+1}{tanx} } =(1+tanx) * \frac{tanx}{1+tanx} =tanx$

And there you go, you have proved the statement by following these steps!

*note, I used 'x' because the equation creator didn't have 'θ' symbol

Hope that helps!

#LearnwithBrainly

4 0

2 years ago

Com F

Sindrei [870]

Mewoooo Batk Balr Bark Balr

3 0

3 years ago

A plane flies round-trip to Philadelphia. It flies to Philadelphia at 220 miles per hour and back home with a tailwind at 280 mi

LuckyWell [14K]

To solve the problem we will use this equation where,

d will be distance.
x is the speed of the plane without tailwind.
y is the speed of the wind affecting the plane.
Going to Philadelphia the speed of the plane affected by wind will be x-y=220 miles/hr
Coming back with a tailwind, the speed of the plane will be x+y= 280 miles/hr.
since time = distance / speed, t1 =d/220 and t2 = d/280
and since the total time traveled is 6.5hrs
d/220 + d/ 280 = 6.5hrs
d = 800.8 miles x 2 (back and forth trip) the answer is 1601.6 miles

6 0

4 years ago