what value of x makes the equation true 2( x + 10) =4( 2x - 1)

Answer:

25

Step-by-step explanation:

25 should be chosen as the common denominator. 5 is a possible common denominator because the other fraction has a denominator of 5 and 25 is divisible by 5, however, the numerator cannot be evenly divided by 5. Attempting to do so would cause a much more difficult equation. On the other hand, the denominator 5 can be changed to 25 by multiplying by 5, and 4 can also be changed by multiplying by 5.

4/5 x 5 = 20/25

6/25 - 20/25 = -14/20 = -7/10

Answer:

b

Step-by-step explanation:

[tex]5.059 \times {10}^{4} + 2.7 \times {10}^{4} = [/tex]

[tex](5.059 + 2.7) \times {10}^{4} = [/tex]

[tex]7.759 \times {10}^{4} [/tex]

Answer:

(5.059×104)+(2.7×104)

Step-by-step explanation:

Answer:

B)15.5

Step-by-step explanation:

Answer:

n=26

n=33

Step-by-step explanation:

Answer:

-13

Step-by-step explanation:

-5y = 9 + 6

y = 15 / -5

y = -3

Now;

y - 10 = -3 - 10 = - 13

Answer:

$12.50

Step-by-step explanation:

Answer:

$12.5/hr

Step-by-step explanation:

50/4=12.5 is the answer

Answer:

Slope: undefined

Equation: x=-3

Step-by-step explanation:

To find the line that passes through the points, you first want to find the slope.  The formula for slope is [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]. Once we have the slope, we can use any given point to plug in to find the y-intercept.

[tex]m=\frac{-5-9}{-3-(-3)} =\frac{-14}{0}[/tex]

We can see that the slope is undefined. If we look at the point, we notice that they both have the same x-coordinate. This let's us know that the equation is x=-3.

Answer:

C. 19,005

Step-by-step explanation:

multipy 2,715 by 7

Answer:

12,500,000. You simply move the decimal point over to the right 7 times.

Answer:

no slope

Step-by-step explanation:

y2-y1/ x2-x1

8-(-12)/17-17 = 0

The line containing (17, -12) and (17, 8) has no slope.

The line is a vertical line with an x-intercept at x = 17.

The equation of a line is given by:

y = mx + c

where m is the slope of the line and c is the y-intercept.

Example:

The slope of the line y = 2x + 3 is 2.

The slope of a line that passes through (1, 2) and (2, 3) is 1.

We have,

A line contains two points.

(17, -12) and (17, 8).

Consider,

(17, -12) = (a, b) and (17, 8) = (c, d)

The slope of the line.

Slope:

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

= (8 - (-12)) / (17 - 17)

= 8 + 12 / 0

= 20 / 0

= undefined.

This means there is no slope for the line that contains (17, -12) and (17, 8).

The line is a vertical line intercepting at x = 17.

Thus,

The line containing (17, -12) and (17, 8) has no slope.

The line is a vertical line with an x-intercept at x = 17.

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Step-by-step explanation:

we know ,

area of circle =πr^2

hence we get from the figure that the diameter of circle is 19 cm and we can find radius

r=d/2

r=18/2=9cm

area of semicircle =πr^2/2

area of Semi circle equals to =22*(9)^2/7/2

=127.2857143

Answer:

Today: Sunday, 11 October 2020

Hour: 23.05 WIB (Indonesian)

_________________________

D = 18

r = 18 ÷ 2 = 9

area of semicircle = πr²/2

area of semicircle = 3.142 . 9²/2

area of semicircle = 3.142 . 81/2

area of semicircle = 254.502/2

area of semicircle = 127.251 cm²

Answer:

answer would be 120 degrees.

Step-by-step explanation:

because 4y+4+60=180

angle Q =4y+4

so 180-60=120

Answer:

4 terms

Step-by-step explanation:

each number or each coefficient/variable combo is a term.

Answer: 5

Step-by-step explanation: you subtract 12.14 from 19.44 to get the amount of money he paid for the toppings alone which is 7.4. Then do 7.4/1.44 to get 5 toppings.

It is 180 just do 60 times 3 since 30 times 3 is 90 and you would figure out how long it take him.

Answer:

x= -2.5

Step-by-step explanation:

Combine like terms, add 12 to both sides, then divide by the coefficient.

-2x-10x+12= 18

-12x+12=18

-12x=30

x=-2.5

Answer:

-36

Step-by-step explanation:

-(36/-6) to the power of 2 is -36.

Answer:

It’s years :)

Step-by-step explanation:

Welcome to the other MHN solving classes.

Let's see what to do ......

_________________________________

Step (1)

EC bisects BED ;

Thus : BEC = CED

_________________________________

Step (2)

Question told us that CED = 4 x + 1

Thus : BEC = CED = 4 x + 1

_________________________________

Step (3)

AD is a straight line which means its angle size is equal to 180° degrees.

So :

AEB + BEC + CED = 180

( 11x - 12 ) + ( 4x + 1 ) + ( 4x + 1 ) = 180

11x + 4x + 4x - 12 + 1 + 1 = 180

19x - 10 = 180

Plus sides 10

19x - 10 + 10 = 180 + 10

19x = 190

Divided sides by 19

[tex] \frac{19}{19}x = \frac{190}{19} \\ [/tex]

[tex]x = 10[/tex]

So : x = 10°

_________________________________

Step (4)

AEB = 11x - 12

AEB = 11(10) - 12

AEB = 110 - 12

AEB = 98°

******************************************************

BEC = CED = 4x + 1

BEC = CED = 4(10) + 1

BEC = CED = 41°

_________________________________

Step (5)

AEC = AEB + BEC

AEC = 98° + 41°

AEC = 139°

_________________________________

And we're done.....♥️♥️♥️♥️♥️

Answer:

The speed of the passenger train is 65 miles per hour and the speed of the freight train is 45 miles per hour.

Step-by-step explanation:

Answer:

It is 7

Step-by-step explanation:

y = mx+b

y is the total cost.

x is the number of hours.

b : that's 16 dollars.

y = 9x+16

The problem states that the cost was 79 dollars.

Substitute that for y and solve for x.

79 = 9x+16

63 = 9x

x = 7 hours

Answer:

y= -x + 10

Step-by-step explanation:

At 0 hours = Bob has 10 apples

At 4 hours = Bob has 6 apples

In 4 hours Bob has eaten 4 apples

Using linear graphs where y = the apples remaining and x = the hours passed

y = mx + c

We already know some coordinates:

(0,10) - 0 hours 10 apples remaining

(4,6) - 4 hours 6 apples remaining

c is the y intercept and m is the gradient

We already have the y intercept (where x = 0) which is (0,10)

So first part of our rule is done: y = mx + 10

The gradient is rise / run

Rise = -4 and Run = 4

-4/4 = -1

So the gradient is -1 and we add that to our rule

So final rule is y = -x + 10

Answer:

15 m

explanation:

Let AB and CD be the pole and tower respectively. Let CD=h Then ∠DAC=60 ∘ and∠DBE=30 ∘ Now CA CD ​ =tan60 ∘ = 3 ​ ∴CD= 3 ​ CA⇒ 3 ​ h ​ =CA Again BE DE ​ =tan30 ∘ = 3 ​ h ​ ∴(h−10)= 3 ​ BE ​ = 3 ​ CA ​ ...[∵BE=CA] = 3 ​ h/ 3 ​ ​ = 3 h ​ ⇒3h−30=h⇒2h=30⇒h=15

Hence, height of the power =15 m

Answer:

B, y = 8/3x - 2/3

Step-by-step explanation:

parallel lines have the

8/3x-2/3 is the slope-intercept form of the line that passes through (1, 2) and is parallel to the graph of y= 8/3x.

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

We need to find the slope-intercept form of the line that passes through (1, 2) and is parallel to the graph of y= 8/3x.

The slopes of parallel lines will be same.

Firstly let us find y intercept.

2=8/3(1)+b

2-8/3=b

-2/3=b

Hence, 8/3x-2/3 is the slope-intercept form of the line that passes through (1, 2) and is parallel to the graph of y= 8/3x.

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Answer:

4.85/ 4.90 rounded to nearest tenth

Step-by-step explanation:

1+1+4+8+9+3+8 = = 34

34/7 = 4.85

Answer:

4.9

Step-by-step explanation:

1+1+4+8+9+3+8 = 34

34 ÷ 7 = 4.857142857

Rounded = 4.9

You will have to pay back a total of $464 over the course of the two-year loan, which includes the $400 principal plus $64 in interest.

What is Simple Interest ?

Simple interest can be defined as the ratio of product of principal amount , rate , time and hundred.

The interest on your loan can be calculated using the formula:

Interest = Principal x Rate x Time

In this case, the principal is $400, the rate is 8% (or 0.08 as a decimal), and the time is 2 years.

So, plugging in the numbers:

Interest = $400 x 0.08 x 2 = $64

Therefore, the total amount you will have to pay back is the sum of the principal and the interest, which is:

Total = Principal + Interest

= $400 + $64 = $464

Hence, You will have to pay back a total of $464 over the course of the two-year loan, which includes the $400 principal plus $64 in interest.

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