solve for x
(3x-1)
71

Answer:

The average speed of the car, in miles per hour, from 17:30 to 19:42, is 119.167 meters per second.

Step-by-step explanation:

Physically speaking, average speed ([tex]\bar v[/tex]), measured in miles per hour, is the distance travelled ([tex]\Delta s[/tex]), measured in miles, divided by time ([tex]\Delta t[/tex]), measured in hours. That is:

[tex]\bar v = \frac{\Delta s}{\Delta t}[/tex] (1)

The time needed by the vehicle is:

[tex]\Delta t = 72\,min\times \frac{1\,h}{60\,min}[/tex]

[tex]\Delta t = 1.2\,h[/tex]

If we know that [tex]\Delta s = 143\,mi[/tex] and [tex]\Delta t = 1.2\,h[/tex], then the average velocity of the car is:

[tex]\bar v = \frac{143\,mi}{1.2\,h}[/tex]

[tex]\bar v = 119.167\,\frac{m}{s}[/tex]

The average speed of the car, in miles per hour, from 17:30 to 19:42, is 119.167 meters per second.

Answer:

An linear equation in one variable

Step-by-step explanation:

Variable:h

Equation:6h+19

1.

Step 1: Flip the equation.

p=2w+21

Answer:

p=2w+21

2.

Step 1: Add -b to both sides.

Step 2: Divide both sides by 2.

Answer:

a= −1 /2b+1/2 c

3.

Step 1: Add 2a to both sides.

−2a+b+2a=c+2a

b=2a+c

Answer:

b=2a+c

Answer:

Step-by-step explanation:

Option D - x + 3 is the correct answer

Answer:

Ivan receives £120 more than Tanya.

Step-by-step explanation:

Total Money = £ 150

Ratio = 4:1

This means that Ivan gets 4x of £150 and Tanya gets 1x of £150.

Ivan's money = 4x

Tanya's money = 1x

Now, we know that total money is equal to the sum of Ivan's & Tanya's money.

Total money = Ivan's money + Tanya's money

£ 150 = 4x + 1x

£ 150 = 5x

150/5 = x

30 = x.

We have found the value of x, now we can substitute 30 in the place of x and find the money Ivan and Tanya get.

Ivan = 4x = 4×30 = £120.

Tanya = 1x = 1×3 = £30.

So, Ivan receives more money. But how much more? We can solve that by subtracting Tanya's money from the total amount.

Total amount - Tanya's money = 150 - 30 = £120.

So, Ivan receives £120 more than Tanya.

Answer:

(x-2)^2 + (y - 5)^2 = 16

Step-by-step explanation:

Given the standard form of an equation of a circle

(x-h)^2+(y-k)^2=r^2

If (h, k) = (5,2) and r = 4

Substitute

(x-2)^2 + (y - 5)^2 = 4^2

(x-2)^2 + (y - 5)^2 = 16

Hence the required equation is (x-2)^2 + (y - 5)^2 = 16

Answer:

x = 2 y = 3

Step-by-step explanation:

Given:

A student has 6 nickel 14 dimes and 8 quarter.

To find:

The ratio of the total number of coins to the number of nickels.

Solution:

We have,

Number of nickels = 6

Number of dimes = 14

Number of quarter = 8

Total number of coins = 6+14+8

                                     = 28

Now, the ratio of the total number of coins to the number of nickels is

[tex]Ratio=\dfrac{\text{Total number of coins}}{\text{Number of nickels}}[/tex]

[tex]Ratio=\dfrac{28}{6}[/tex]

[tex]Ratio=\dfrac{14}{3}[/tex]

[tex]Ratio=14:3[/tex]

Therefore, the  ratio of the total number of coins to the number of nickels is 14:3.

Step-by-step explanation:

the one on the left (b)

y= mx+b

at x= 0 y = -2

then b= -2

at x= -1 y= 1

1= -m -2

m= -3

y= -3x -2

......

the one on the right side (d)

at x= 2 y = 1

at x= 4 y = 2

1= 2m+b

2= 4m +b

subtract

1= 2m

m= 1/2

y= 1/2 x

Answer:2

Step-by-step explanation:

it has biggest numbers

Answer:

the answer is 14 ounces of sugar

Answer:

<BYX = 74 degrees

Step-by-step explanation:

The sum of angles of the adjacent sides of the trapezoid is 180 degrees

Given

<A = 106 degrees

<A + <BYX = 180

106 + <BYX = 180

<BYX = 180-106

<BYX = 74 degrees

Answer:

3:1, 24 gallons blue 8 gallons yellow

Step-by-step explanation:

Jenny will use 24 gallons of blue paint and 8 gallons of yellow paint

Their ratio is 24:8 = 3:1

Answer:

(3/2)f

it doesn't really show me a good copy of the question but I hope you found this helpful

Answer:

-3/4

Step-by-step explanation:

Answer:

x³-13x+12

Step-by-step explanation:

Answer:

a possible solution is (10,1)

Step-by-step explanation:

Here, we want to solve the given inequality and determine one possible solution

From the question, we have it that;

x + y ≤ 13

Mathematically, we have it that 1 dime is worth $0.1

A nickel is worth $0.05

0.1x + 0.05y ≥ 0.95

please check the attachment for the graph of both equations

The point of intersection represents the solution.

we have a point here as (10,1)

Answer:

there is no constant term. it contains a variable x. in this 1 is coefficient of x.

Answer:

No they aren't equivalent

Step-by-step explanation:

Let's take each expression

the first one is

- (12x+24) - 9x = -12x -24 -9x = -21x -24 = -3 (7x +8)

the second expression

-6 (x+1) = -6x-6

So they aren't equivalent

Answer:

29:17

17:46

29:46

17:29

Step-by-step explanation:

In this problem, we are given three quantities and all we have to do is to write ratios relating two of them. Since all the numbers are relatively prime, we can no longer simplify the ratios.

Problem 1:

29 girls is to 17 boys

29:17

Problem 2:

17 boys is to 46 learners

17:46

Problem 3:

29 girls is to 46 learners

29:46

Problem 4:

17 boys is to 29 girls

17:29

In these problems, it's usually as simple as putting two or three numbers together and reducing them into simplest form.

(credits to ethananilovnorcio for the answer)

Answer:

1250

Step-by-step explanation:

The number of guest satisfaction surveys will you need to send out to make certain you receive at least 300 surveys back is 1,250.

Since the return is received i.e. 24%

And, there are the minimum of 300 surveys

So, based on this, the no of guest satisfaction should be

[tex]= 300 \div 0.24[/tex]

= 1,750

hence,  The number of guest satisfaction surveys will you need to send out to make certain you receive at least 300 surveys back is 1,250.

Learn more about survey here: https://brainly.com/question/22497309

Answer:

2. 64

3. 2

Step-by-step explanation:

Answer:

-5/2

Step-by-step explanation:

2x-10/4=3x

10/4=2x-3x

5/2=-x

x=-5/2

Answer:

1

Step-by-step explanation:

the probability is 1 because the ration of black to white is 1 to 2 so i guess she has 1 chance that it is black

Answer:

Step-by-step explanation:

p=4

Q=2

plot an x onto the 4 on th y line and a 2 on the x line

then draw a horizontal line with the ruler provided through 4 and 2

hope it helps :)

The solution to the equations are

a) The coordinates of point P is P ( 0 , 4 ) and Q is Q ( 2 , 0 )

b) The graph is plotted with points P and Q

c) The equation of line is 4x + 2y = 8

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given data ,

Let the equation of line be represented as A

Now , the value of A is

4x + 2y = 8   be equation (1)

Now , the coordinates of the point P = P ( 0 , y )

The coordinates of the point Q = Q ( x , 0 )

Substituting the values in the equation , we get

when x = 0

4 ( 0 ) + 2y = 8

2y = 8

y = 4

So , the coordinates of the point P = P ( 0 , 4 )

when y = 0

4x + 2 ( 0 ) = 8

4x = 8

x = 2

So , the coordinates of the point Q = Q ( 2 , 0 )

Now , the equation of line is 4x + 2y = 8

when x = { -2 , -1 , 0 , 1 , 2 , 3 }

The values of y are y = { 8 , 6 , 4 , 2 , 0 }

So, the line is plotted in the graph

Hence , the equation of line is 4x + 2y = 8

To learn more about equation of line click :

https://brainly.com/question/14200719

#SPJ5

Answer:

Slope: 1

Y-intercepts : (0,0)

Step-by-step explanation:

Y= x