Help me answer the following pls

20 is a solution to the equation by using the replacement set.

Given the following data:

a. To represent the statement as an algebraic equation:

In this exercise, you're required to write a mathematical expression (algebraic equation) that represents the word sentence given.

Translating the word sentence into an algebraic expression, we have;

The product of 0.4 and a number is 8:

[tex]0.4n = 8[/tex]

b. To determine the solution set using the replacement set:

When n = 0:

[tex]0.4(0)=8\\\\0\neq 8[/tex]

When n = 1:

[tex]0.4(1)=8\\\\0.4\neq 8[/tex]

When n = 10:

[tex]0.4(10)=8\\\\4\neq 8[/tex]

When n = 20:

[tex]0.4(20)=8\\\\8= 8[/tex]

Therefore, 20 is a solution to the equation by using the replacement set.

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Answer:

20 is the answer.

Step-by-step explanation:

Answer:

[tex]-4x^2+5x-28[/tex]

Step-by-step explanation:

Distribute -7 by multiplying it by ([tex]x^2[/tex]) and (4)

[tex]3x^2+5x-(7)(x^2)(7)(4)[/tex]

[tex]3x^2+5x-(7x^2+28)[/tex]

Now combine like terms

[tex](3x^2-7x^2)+5x-28[/tex]

[tex]-4x^2+5x-28[/tex]

Answer:

2/3 I think so but not sure

The bar diagram is attached below. As we can see, the price of a yellow T-shirt is as three times as the price of a blue T-shirt. Hence, we can construct the following equation to determine the ratio between both prices:

[tex]y = r\cdot x[/tex] (1)

Where:

If we know that [tex]x = 8[/tex] and [tex]y = 24[/tex], then the price ratio is:

[tex]r = \frac{y}{x}[/tex]

[tex]r = 3[/tex]

The price of the yellow T-shirt is as three times as the price of the blue T-shirt.

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Step-by-step explanation:

the middle one.

S starts at 10 and then subtracts 1 with every step. that means it is going "backwards" from right to left.

T starts at 10 and then subtracts 2 with every step.

in combination the middle graphic follows both.

Answer: Well you first have to figure out how long it took him to ride the one mile so once you find hat out all you need to do if times that by 10 and you will get the answer you have.

Please mark me brainilest

Malik's average pace was 5.5 minutes per mile.

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

Given; Malik uses an app on his phone to track how far he rides his bike. Yesterday, he biked a new trail in a total of 57.5 minutes, including a 2.5-minute water break. The app notified Malik that he rode 10 miles.

Now, This equation represents the situation.

Now, solve the equation for p;

10p+2.5 = 57.5

Subtract 2.5 from both sides;

10p = 55

Divide both sides by 10

p = 5.5

Therefore, Malik's average pace was 5.5 minutes per mile.

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Answer:

B. y = | x + 15.5 |

Step-by-step explanation:

The + inside the absolute value equation really means -.

So there is a horizontal shift of 15.5 units left.

Answer:

B. y = | x + 15.5 |

Step-by-step explanation:

Given : y= |x|.

To find : Write an equation for each translation of y= |x|. 15.5 units left .

Solution : We have given that y= |x|.

By the translation rule :if function transformed to  f(x ) →→→ f(x +h) Then graph of the function would shift h units left.

For translation 15.5 unit left we need to add 15.5 in function y= |x|.

y = | x + 15.5 |

Therefore, y = | x + 15.5 |.

Answer:

i believe it is (c)

Step-by-step explanation:

Answer:

C) 3

Step-by-step explanation:

See the image

Answer:

less time

Step-by-step explanation:

because there is more space for them to move around

Answer:

I don't know

Step-by-step explanation:

thanks for the points

Answer:

simple convert to improper to subtract

51/4 turn to a common denominator

so multiply by 3

153/12. 4/12

then just divide 153 by 12 = 12.75* 3 bc 3 costumes are one yard and you get 38.25 costumes or 38 bc you cant have .25 of a costume

The no. of costumes Martin can make is 38.

It is given that 1/3 yards of Ribbon is needed for each costume and [tex]12\frac{3}{4}[/tex] yards of Ribbon is left.

We have to find out the no. of costumes which Martin can make.

What is algebra ?

Algebra is the branch that deals with various symbols and the arithmetic operations and the symbols are called variables.

As per the question ;

Ribbon needed for each costume = 1/3 yards

Ribbon left = [tex]12\frac{3}{4}[/tex] yards

Let's assume no. of costumes Martin can make is x.

The ribbon needed for x costumes will be ;

= [tex]\frac{1}{3}[/tex] × x

= [tex]\frac{x}{3}[/tex] yards

So ;

The no. of costumes will be ;

[tex]\frac{x}{3}[/tex] yards =  [tex]12\frac{3}{4}[/tex] yards

[tex]\frac{x}{3}[/tex] yards = [tex]\frac{51}{4}[/tex] yards

or

4x = 51 × 3

or

x = [tex]\frac{51 * 3}{4}[/tex]

x = [tex]\frac{153}{4}[/tex]

or

x ≈ 38

Thus , the no. of costumes Martin can make is 38.

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Answer:

either 19 or 84

Step-by-step explanation:

your question was unclear, it could be 7+12 or 7x12

so for 7+12 ITS 19

and for 7x12 its 84

Answer:

x=6.54138

x=0.458619

Step-by-step explanation:

using the Quadratic Formula where

a = 1, b = -7, and c = 3

x=−b±[tex]\sqrt{b^{2} -4ac}[/tex]/2a

x=−(−7)±√[(−7)2−4(1)(3)]/2(2)

x=7±√(49−12)/2

x=7±√37/2

The discriminant b2−4ac>0

so, there are two real roots.

Cannot Simplify the Radical:

x=[tex]\frac{7+-\\\sqrt{37} }{2}[/tex]

which becomes

x=6.54138

x=0.458619

Answer:

Step-by-step explanation:

The third side is thus, less than 14 + 11 = 25 cm. The side cannot be less than the difference of the two sides. Thus, the third side has to be more than 14 - 11 = 3 cm. So, the length of the third side could be any length greater than 3 cm and less than 25 cm.

Answer:

101,929,0

Step-by-step explanation:

the answer is 1019290 on this math question

Let a = (x1,y1) = (4,6) and b = (x2,y2) = (8,14)

Then, since the formula of the gradient (or Slope), given two points a and b is :

m = (y2 - y1) / (x2-x1) = (14 - 6) / (8 - 4) = 8 / 4 = 2

Then we know that the gradient is m = 2

Good Luck, your the best :)

Answer:

Step-by-step explanation:

Note that |-x| = 1, just as |x| = 1.  Removing the absolute value operator in both cases, we get x = 1.   In two dimensions the graph would be a solid dot at  = 1.

Answer:

12.72 m

Step-by-step explanation:

You're going to use the left side from the middle of AD up to point A. You see that's the same as a radius, so its length is 4.5. Then you can use the Pythagorean theorem to find the hypotenuse, the blue line from X to A.

(4.5)^2+(4.5)^2=x^2

40.5=x^2

x=6.36

and AC is two of the line you just figured out so 6.36x2=12.72m

Answer:

5/2

Step-by-step explanation:

Answer:

A. Line A

Step-by-step explanation:

Line A is decreasing so it has a negative slope.

Given the equation 2x -3y= 6

since we are to find the rate of change of y with respect to x we make y subject of formula

2x -3y= 6

3y = 2x - 6

divide through by 3

y= 2x/3 - 6/3

y=2x/3 - 2

dy/dx = 2/3

Answer:

$2.10 is the sales tax

Step-by-step explanation:

convert 5.25% to a decimal

5.25 / 100 = 0.0525

0.0525 x 40 = 2.1

Answer: Pablo pays $30every night?

Step-by-step explanation:

Answer:

um, i like my math teacher, math's a little hard sometimes, but i still like her.

Step-by-step explanation:

Answer:

196

Step-by-step explanation:

12, 24, 48, 96, __?

The next term will come by multiplying with number 2

12 *2 = 24,

24*2 = 48,

48*2 = 96,

96*2 = 192,

& The answer will be 196

Answer:

Each time the pervious number is being doubled (multiplied by 2). So the next number would be 96 x 2. So, the next number on the pattern is 192.

:)

Answer:57.75

57 Remainder 24

Step-by-step explanation

Answer:

80 ft

Step-by-step explanation:

6cm is 15ft

10cm is ?ft

10x15 is 150

150 divided by 6 is 25

25+15+25+15 is 80

Answer:

c=d/a+b

Step-by-step explanation:

a(c-b)=d

a(c-b)/a=d/a

c-b=d/a

c=d/a+b

c=d+ab/a

Answer:

a ang anwers

Step-by-step explanation:

no explanation

Answer:

Step-by-step explanation:

4x-2x=7+1 2x=8 x=4.