9x — 1 = 10x + 9
Y’all know how to solve this??

Answer:

21

Step-by-step explanation:

The given equation is linear with two variables that will have zero solutions.

A system of equations, also known as an equation system or a set of simultaneous equations, is a finite set of equations for which common solutions are sought.

Given equation is x + 2y = 8. The equation is a linear equation with two variables. If the equation will have another equation then the solution will have two values for two variables.

If there is only one equation with two variables we will not get any solution we need one more same equation. The equation will have zero solution.

Therefore, the given equation is linear with two variables that will have zero solutions.

To know more about a system of equations follow

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Answer:

v = 22.5 miles/hour

Step-by-step explanation:

It is given that,

The speed of Penguins is 33 ft/s.

We need to convert the speed to miles per hour.

We know that, 1 mile = 5280 feet

Speed,

[tex]v=33\ \dfrac{ft}{s}\\\\=33\times \dfrac{\dfrac{1}{5280}\ \text{miles}}{\dfrac{1}{3600}\ \text{hour}}\\\\=22.5\ \text{miles/hour}[/tex]

So, the speed of the Penguins is 22.5 miles/hour.

Answer: just plug these into a calculator to find the simplified answers

Answer: 1) D    2) B, A     3) A

Step-by-step explanation:

Domain is the x-values

Range is the y-values

Graph is a function if no x-values are duplicated

1) option D

  (3, 7), (1, 0), (8, 1), (-4, -3), (2, 7)

   ↓       ↓       ↓        ↓          ↓

Domain: x = {1, 1, 8, -4, 2}   → No duplicates so it is a function.

  (3, 7), (1, 0), (8, 1), (-4, -3), (2, 7)

       ↓       ↓       ↓          ↓        ↓

Range: y = {7, 0, 1, -3}    7 is a duplicate so only needs to be listed once

2) Domain = option B, Range = option A

x-values are between -5 (included = bracket) and +5 (not included = parentheses)

y-values are between -5 (included = bracket) and +5 (included = bracket)

3) option A

Domain: x = {1, 4, 5, 7, 9}   → 4 matches to both 5 and 7 so is NOT a function

Range: y = {3, 5, 7, 8}

Step-by-step explanation:

take 48 and divide it by 5/6 on a calculator

Answer:

5x(7y + 5)

Step-by-step explanation:

Find the greatest common factor of 35xy and 25x and pull it in front of the parenthesis.

Answer: AAS. Some people use SAA.

Step-by-step explanation: LM congruent to JK using given. <MLJ congruent to <JKM using given...The last one is using VAT(I can’t find the angle there. Hope this helps!

Answer:x=6

Step-by-step explanation:

Answer:6.66

Step-by-step explanation:

Answer:

Step-by-step explanation:

A

Answer:

Step-by-step explanation:

[tex]5x - 26 =x +50[/tex]

Collect like terms and simplify

[tex]5x-x =50+26\\\\4x = 76[/tex]

Divide both sides of the equation by 4

[tex]\frac{4x}{4} = \frac{76}{4}[/tex]

Simplify

[tex]x=19[/tex]

Answer:

40

Step-by-step explanation:

50 x (4/5) = 50 x 4 =200/5=40

Answer:

aba mag solve kayo mag puro tanong samin

Answer:

$105.22

Step-by-step explanation:

$123.79 * 0.15 = $18.5685

That is not how you write money, so we round to $18.57

Subtract that from $123.79 and you get $105.22

I hope this helped, please mark Brainliest, thank you!

Answer:

7(3x-2)=133

x=7

Step-by-step explanation:

distribute the 7 which gives you 21x-14=133

the add 14 to both side making it 21x=147

finally divide 21 to both sides giving you x=7

Answer:

10

Step-by-step explanation:

When we subtract a negative number, it's basically a double negative, kind of like how we don't use those in English. We want to turn that into a positive, and double negatives are positive.

So, instead of 7-(-3), we get 7+3, or 10

Answer:

10

Step-by-step explanation:

[remember: (+)(+) is (+) itself , (+)(-) is (-) , (-)(-) is (+) ]

(+7)-(-3)

⇒ +7+3

⇒ 10

hope you understood❤

Answer:

12

Step-by-step explanation:

hope this helps :)

Answer:

33% decrease

Step-by-step explanation:

40/60 = 66.66% and then what ever is left over is how much it decreased by

Answer:

14 is +1

15 is -9

Step-by-step explanation:

Answer:

y= -2x-2

Step-by-step explanation:

All parallel lines have the same slope. So, the line we create must have a slope of -2. If we multiply the x value by -2, we can find b through an equation.

-4 would be x in this case because it's a point we pass.

So, our equation would be

y= -2(-4)+b

y=8+b

Now, we know that y is 8+b. We can find b by plugging in y=6, because those are the coordinates of P.

6=8+b

b=-2

Now we know that b is -2. We put this into the equation for the parallel line and get:

y=-2x-2

Answer:

a=10

Step-by-step explanation:

Answer:

a=10 i just was confirming the other dudes answer and showing steps:)

Step-by-step explanation:

7.4a=3.2a+42

4.2a=42

a=10

Answer:

x=4

Step-by-step explanation:

Add six to both sides

x/4=1

Multiply by 4 on both sides

x=4

Regroup.

x/4 - 6 = -5

Add 6 to both sides

x/4 = -5 + 6

Simplify

x/4 = 1

Solve for x

x = 1×4

x = 4

Answer:

its basically -4 divided by 2 which is 2

Step-by-step explanation:

Answer:

120

Step-by-step explanation:

Answer:

y=150x+200

Step-by-step explanation:

Given that:

Week : ____ 0___ 1 ___ 2 ____3 _____4

Balance : __200_350 _ 500 _ 650 ___800

Amount had in savings account = $200 before starting the job

x = number of weeks spent working

y = account balance

Slope intercept formula :

y = mx + c

C = intercept ; value of y when x = 0 = 200

m = slope or gradient = change in salary per month (350 - 200 = 500 - 350 = 650 - 500 = 800 - 650 = 150

Hence,

y = 150x + 200