Algebra 1. 9th Grade
-12-8=5/2x​

Answer:

(12 + 3x)x

Step-by-step explanation:

(12 + 3)x = 12x + 3x = 15x

(12 + 3x)x = 12x + 3x²

15x

12x + 3x = 15x

They all equal 15x except for (12 + 3x)x

Answer:

For question 2 the slope is 1. So what you do is get the points you need to put on the graph and move them up one. Like how you did on question 1.

(0.5, 5) (1, 10) (1.5, 15) (2, 20) (2.5, 25)

Question 3 is the same thing but the slope is now 2. Then you would have to pin the points as...

(1, 2) (2, 4) (3, 6) (4, 8) (5, 10)

Hope this helped :)

Answer:

B. all real numbers

Step-by-step explanation:

hope that helps

Answer:

B  hope this helps :)

Step-by-step explanation:

Answer: 21.44 miles

Step-by-step explanation:hope it helps!

Division first:

-2/5 / 8/15

When dividing two fractions flip

The second one over and multiply:

-2/5 x 15/8 = (-2x15)/(5x8) = -30/40 = -3/4

Now you have:

2-3/4-3/4

2-3/4 = 1 1/4

1 1/4 - 3/4 = 1/2

The answer is 1/2

Answer:

3 = 275, 5 = 305, 8= 350, 12 = 410

Step-by-step explanation:

3x15+230, (305-230)/15, im bored plz just take the answer

i dont think you have a whole question down and we need examples of the triangles so please shw examples

Answer:

hi not sure you need this still but its 36

Step-by-step explanation

Answer:

right

Step-by-step explanation:

a number line goer -3 -2 -1 0 and 0 isnt -1 or any (bigger? smaller?) negative number

Answer:

shade the bottom part.

Step-by-step explanation:

I'm pretty sure because if y is less than -x -1 , then everything on the bottom is less than that? Sorry if it is not correct.

Answer:

C

Step-by-step explanation:

Answer:

C: $146.43

Step-by-step explanation:

I just did the test. NOTICE: Edge loves moving stuff around so make sure its actually C... Look for $146.43

Answer:

Area = 10 in

Step-by-step explanation:

Base=4 in , Height=2 in , Other Side = 3 in.

Height x Other Side + Base

2 x 3 + 4

2 x 3 = 6 + 4 = 10

Step-by-step explanation:

Hey there!!!!

Given,

Angle r and angle s are supplementary angle.

And angle r = 120°.

Now, we have,

supplementary angle's sum is always 180°.

So, angle r + angle s = 180°.

or, 120°+ angle s = 180°

Therefore the measure of angle s is 60°.

Hope it helps....

Answer:

a) 0.6

b) 0.73

c) 7/8

Step-by-step explanation:

a) 0.6 repeating

b) 0.73

c) 7/8  (0.875)

Answer:

z³ = 64

z³=4³

since power is equal, base will be same

z=4

Step-by-step explanation:

The value of z in the expression is,

⇒ z = 4

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

Expression is,

⇒ z³ = 64

Now, We can simplify the expression as;

⇒ z³ = 64

Take cube root both side,

⇒ z = ∛64

⇒ z = ∛4³

⇒ z = 4

Thus, The value of z in the expression is,

⇒ z = 4

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ3

Answer:

Its the same because you add 12 to the first one, then you take back the 12. So its like you added nothing. And in the second one, you add zero

Step-by-step explanation:

Answer:

After 10 days rocky and robin will log the same number of met miles which will be 60 miles.

Step-by-step explanation:

This is because by using y=mx+b and graphing the two equations you can find their intersection which is (10,60).

Answer:

1.75x+5<2.5x+3

Step-by-step explanation:

Answer:

60%

Step-by-step explanation:

18 / 30 = 0.6, which is 60%

Answer:

60% are boys and 40 % are girls

Step-by-step explanation:

Answer: The answer is 28. Hope this helps:)

Answer:

-1

hope this helps

plz mark brainleist

Answer:

d:-12,0

Step-by-step explanation:

Answer:

Step-by-step explanation:

Let your number be X. To increase X by 40% we can multiply it by 1.4, let's call this new number Y.

So Y = X * 1.4

Now to decrease Y by 40% we can multiply it by 1 - .4 = .6. Lets call this new number C.

So C = Y *.6 = (X * 1.4) * .6 = X * (1.4 * .6) = X * .84.

Therefore, C = .84 * X.

So we can see C is 84% of X, or 16% less than X.

Thus, if you increase a number by 40% then decrease it by 40%, the net percentage is -16% .

      Final result in terms of 'x' will be → 0.75x

Let the number = x

As per first statement → "A number 'x' is decreased by 40%"

Algebraic expression for the statement → (x - 40% of x)

                                                                  → (x - 0.4x)

                                                                  → 0.6x

Second statement → "Then increased by 25%"

Algebraic expression for the statement → (0.6x + 25% of 0.6x)

                                                                  → [tex](0.6x+\frac{25}{100}\times 0.6x)[/tex]

                                                                  → [tex](0.6x+0.15x)[/tex]

                                                                  → [tex]0.75x[/tex]

           Therefore, final result in terms of x will be (0.75x).

Learn more about the algebraic expression here,

https://brainly.com/question/561132?referrer=searchResults

Answer:

C. -13

Step-by-step explanation:

Solve for g(x) by replacing x with each domain value in the set. Solving for g(x) will give you these numbers:

{20, 2, -4, -13}

-13 is the only value that appears in the range set and in the multiple choice solutions. Therefore, the answer is C. -13

C. [tex]-13[/tex] is a corresponding range value.

The domain of a function refers to the set of all values for which the function is defined.

The range is the set of all values that function takes for the given values of domain.

Domain is [tex]\boldsymbol{\left \{ -8,-2,0,3 \right \}}[/tex]

[tex]g(x)=-3x-4[/tex]

[tex]g(-8)=-3(-8)-4[/tex]

         [tex]=20[/tex]

[tex]g(-2)=-3(-2)-4[/tex]

         [tex]=2[/tex]

[tex]g(0)=-3(0)-4[/tex]

       [tex]=-4[/tex]

[tex]g(3)=-3(3)-4[/tex]

       [tex]=-13[/tex]

Range is [tex]\boldsymbol{\left \{ 20,2,-4,-13 \right \}}[/tex]

So, [tex]\boldsymbol{-13}[/tex] is a corresponding range value.

For more information:

https://brainly.com/question/21853810?referrer=searchResults

Answer:

63 miles

Step-by-step explanation:

Bonnie ran a total of 18 miles over the course of 2 track practices. How many miles would Bonnie have run after 7 track practices?

2 track practices = 18 miles

7 track practices = y miles

Cross Multiply

2 track practices × y miles = 18 miles × 7 track practices

y miles = 18 miles × 7 track practices/ 2 track practices

y miles = 63 miles.

Therefore, Bonnie will have run 63 miles after 7 track practices

Answer:

B: $2.50

Step-by-step explanation:

Step 1: form an equation

126 = 12(8 + x)

Step 2: isolate the x

126/12 = 8 + x

126/12 - 8 = x

Step 3: solve

10.5 - 8 = x

2.5 = x = raise per hour

Answer:

I'm not sure :(

Step-by-step explanation:

I'm sorry

Answer:

Thus, the rational number 93/77 should be added to -7/11 so as to get 4/7.

Answer:

4+8/2*(6-3)

4 + 8/2* 3

4+4*3

4+12

16

Step-by-step explanation: