pls help me fast! i need help!

Answer:

3800

Step-by-step explanation:

Variables:

O - Original cost

N - New cost

c - change factor

Step 1:

Recognize that if something decreases by 19%, it is worth 19% less

This means that the new price, fractionally, is 100% - 19% = 81%

So we can use c as 0.81 (81/100)

Step 2:

Write an equation to represent what is happening

N = O * c

Step 3:

Sub in what we know

3078 = O * 0.81

Step 4:

Rearange and solve

O = 3078 / 0.81 = 3800

Answer:

164 feet per minute

Step-by-step explanation:

3 kilometers is ~9842.52 feet

Since it moves 9842.52 feet per hour, we can just divide that number by 60 which gives us 164.042 feet. Rounded it's 164 feet

Answer:

C. Q was flipped over the y axis

Answer: a + 3b = 8

Step-by-step explanation:

a + b = 4 is true, since (2,2) works:  2 + 2 = 4

Try (2,2) in the options to find which one is true for (2,2):

A)  2 + 3*2 = 4?  No.

B)  4 + 4 = 2?  No.

C)  8 + 8 = 8?  No.

D)  2 + 6 = 8?  YES.

Therefore, a + 3b = 8 can be another valid equation.

Answer:

D. a + 3b = 8

Answer:

188,708

Step-by-step explanation:

191,000 x 0.098 = 2292

Decreases = Subtract

191,000 - 2292 = 188,708

Answer:

2x^3 + 12x^2 + x - 12 - 3c is the most simplified version. hope this helps

Step-by-step explanation:

- Zombie

Answer:

9 units

12×3/4

plss mark brainliesttt

Answer:

it is 3/5 or 1.666666666667

10/6 and 3/5 will still give the same answer

plssss mark brainliesttt

Answer:

3:5

Step-by-step explanation:

Step-by-step explanation:

the sum of all angles in a triangle is 180 degrees.

so,

x + (x - 6) + (2x + 34) = 180

x + x - 6 + 2x + 34 = 180

4x + 28 = 180

4x = 152

x = 38 degrees

x - 6 = 32 degrees

2x + 34 = 110 degrees

Answer:

8

if u look closely,triangle abc has 4 identical triangle def in it.

Answer:

7x - 3)

Step-by-step explanation:

Given

3x - 7 + 2(2x - 7) ← distribute parenthesis

= 3x - 7 + 4x - 14 ← collect like terms

= 7x - 21 ← factor out 7 from each term

= 7(x - 3)

The expression 3x - 7 + 2(2x - 7) can be written as the product of 7 and the factor (x - 3).

We have write the expression 3x - 7 + 2(2x - 7) as the product of 7 and another factor.

we can simplify the expression first and then factor out the common factor of 7.

Let's simplify the expression step by step:

3x - 7 + 2(2x - 7)

= 3x - 7 + 4x - 14 (distributing the 2 to the terms inside the parentheses)

= (3x + 4x) + (-7 - 14)

= 7x - 21

Now, let's factor out the common factor of 7:

= 7(x - 3)

To learn more on Expressions click:

https://brainly.com/question/14083225

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Answer:

Rs :140

Step-by-step explanation:

M.P. = Rs. 200, Discount =12.5%

∴S.P.=200−12.5 % of 200

=200−

100

12.5

×200

=200−25.0=175

Therefore, profit =25 %

∴C.P.=

100+profit%

100

×S.P.=

125

175×100

= Rs. 140.

Hello!

The slope equation is y = mx + b

mx is the slope and b is the yintercept.

4. y= -3x + 5

See where I put the slope and y intercept above?

Those are where the numbers go in that equation.

5. 3x + y = 5

The standard for equation is: Ax + by = c

y = -3x + 5

we need to make the equation look like the standard form equation.

y = -3x + 5

lets add 3x to both sides

The answer is 3x + y = 5

6. m = [tex]\frac{3}{2}[/tex]

We need to use this formula: [tex]m=\frac{y2-y1}{x2-x1} \\\\\\[/tex]

The points said are: (2, 5) and (4, 8)

[tex]m=\frac{8-5}{4-2}[/tex]

m = 3/2

M is the slope.

---------------

I hope this helps,

Have a great day!!

Answer:

26

Step-by-step explanation:

It says find f(f(2)), so we need to find f(2) and then input that into the same function. f(2)=5 so then we input that into the function again and get 26. Boom.

Answer:

26

Step-by-step explanation:

Ok first u find f(2) so for that u have to input 2 into the value of x. So 2^2 +1 =5

When we get 5 we input THAT into f(x)

So:

F(5) = 5^2 +1

=26

Answer:

364.0

Step-by-step explanation:

567.78/1.56

=363.96153846

=364.0

Answer:

the answer is D

Step-by-step explanation:

as you can all of the other circles have stars and crosses but circle d has a question mark

Answer:

5

35

56

Step-by-step explanation:

8 x 7 = 56

Subtract 21 (3x7) from 56 (8x7) to get 35

Divide 35 by the given value 7 to get 5

5 x 7 = 35

35 + 21 = 56

Answer:

A) 1.25 inches

B) 2 inches

C) 3 inches

Step-by-step explanation:

[tex]\frac{d}{4}[/tex] + [tex]\frac{1}{2}[/tex] = [tex]\frac{d}{4}[/tex] + [tex]\frac{2}{4}[/tex] = [tex]\frac{d+2}{4}[/tex]

A) 3

[tex]\frac{d+2}{4}[/tex] = [tex]\frac{3+2}{4}[/tex] = 5/4 = 1.25

B) 6

[tex]\frac{d+2}{4}[/tex] = [tex]\frac{6+2}{4}[/tex] = 8/4 = 2

C) 10

[tex]\frac{d+2}{4}[/tex] = [tex]\frac{10+2}{4}[/tex] = 12/4 = 3

Answer:

232

Step-by-step explanation:

Answer:

Step-by-step explanation:

I think it the choice of A and D

Answer:

x = - 3

Step-by-step explanation:

-3 x -3 = 9 x -3 = -27

Answer:

Required answer is -3

On cubing -3 we get -27

So x= -3

.

.

Hope it helps

Answer:

If you have to solve for v, it's v<-1

interval notation: (- ∞, -1)

Step-by-step explanation:

[tex] \huge \boxed{\mathfrak{Answer} \downarrow}[/tex]

[tex] \large \bf\frac { 5 - 3 i } { - 2 - 9 i } \\ [/tex]

Multiply both numerator and denominator of [tex]\sf \frac{5-3i}{-2-9i} \\ [/tex] by the complex conjugate of the denominator, -2+9i.

[tex] \large \bf \: Re(\frac{\left(5-3i\right)\left(-2+9i\right)}{\left(-2-9i\right)\left(-2+9i\right)}) \\ [/tex]

Multiplication can be transformed into difference of squares using the rule: [tex]\sf\left(a-b\right)\left(a+b\right)=a^{2}-b^{2}[/tex].

[tex] \large \bf \: Re(\frac{\left(5-3i\right)\left(-2+9i\right)}{\left(-2\right)^{2}-9^{2}i^{2}}) \\ [/tex]

By definition, i² is -1. Calculate the denominator.

[tex] \large \bf \: Re(\frac{\left(5-3i\right)\left(-2+9i\right)}{85}) \\ [/tex]

Multiply complex numbers 5-3i and -2+9i in the same way as you multiply binomials.

[tex] \large \bf \: Re(\frac{5\left(-2\right)+5\times \left(9i\right)-3i\left(-2\right)-3\times 9i^{2}}{85}) \\ [/tex]

Do the multiplications in [tex]\sf5\left(-2\right)+5\times \left(9i\right)-3i\left(-2\right)-3\times 9\left(-1\right)[/tex].

[tex] \large \bf \: Re(\frac{-10+45i+6i+27}{85}) \\ [/tex]

Combine the real and imaginary parts in -10+45i+6i+27.

[tex] \large \bf \: Re(\frac{-10+27+\left(45+6\right)i}{85}) \\ [/tex]

Do the additions in [tex]\sf-10+27+\left(45+6\right)i[/tex].

[tex] \large \bf Re(\frac{17+51i}{85}) \\ [/tex]

Divide 17+51i by 85 to get [tex]\sf\frac{1}{5}+\frac{3}{5}i \\ [/tex].

[tex] \large \bf \: Re(\frac{1}{5}+\frac{3}{5}i) \\ [/tex]

The real part of [tex]\sf \frac{1}{5}+\frac{3}{5}i \\ [/tex] is [tex]\sf \frac{1}{5} \\ [/tex].

[tex] \large \boxed{\bf\frac{1}{5} = 0.2} \\ [/tex]

Answer:

36

x×2=24

2×=24

x=12

=24+12

=36

The slope of the graph in decimal form is 1.08.

By geometry we know that a line can be constructed after knowing the location of two distinct points. Lines in explicit form are defined by slope and intercept, the former is calculated by the secant line equation and the intercept by solving a linear function.

If we know that [tex](x_{1}, y_{1}) = (4.2, 9.6)[/tex] and [tex](x_{2}, y_{2}) = (6.7, 12.3)[/tex], then the slope of the graph is:

[tex]m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

[tex]m = \frac{12.3-9.6}{6.7-4.2}[/tex]

[tex]m = 1.08[/tex]

The slope of the graph in decimal form is 1.08.

We kindly invite to see this problem related to linear functions: https://brainly.com/question/21604915