Will mark brainliest! 10 points!

Plz help What is 2x+x

love history [14]

Answer:

The correct answer is 3x

Step-by-step explanation:

Add 2x and x

~Hoped this helped~

~Brainiliest, please?~

6 0

3 years ago

Write the slope-intercept form of the equation of each line given the slope and y-intercept.

saul85 [17]

Answer:

4b. −6x + y = −4

4a. 7x + 4y = −12

3b. y = ½x + 3

3a. y = −6x + 5

2b. y + 2 = −⅔(x + 3)

2a. y - 3 = ⅘(x - 5)

1b. y = -x + 5

1a. y = 5x - 3

Step-by-step explanation:

4.

Plug the coordinates into the Slope-Intercept Formula first, then convert to Standard Form [Ax + By = C]:

b.

2 = 6[1] + b

6

−4 = b

y = 6x - 4

-6x - 6x

_________

−6x + y = −4 >> Standard Equation

a.

4 = −7⁄4[-4] + b

7

−3 = b

y = −7⁄4x - 3

+7⁄4x +7⁄4x

____________

7⁄4x + y = −3 [We do not want fractions in our Standard Equation, so multiply by the denominator to get rid of it.]

4[7⁄4x + y = −3]

7x + 4y = −12 >> Standard Equation

__________________________________________________________

3.

Plug both coordinates into the Slope-Intercept Formula:

b.

5 = ½[4] + b

2

3 = b

y = ½x + 3 >> EXACT SAME EQUATION

a.

−1 = −6[1] + b

−6

5 = b

y = −6x + 5

* Parallel lines have SIMILAR RATE OF CHANGES [SLOPES].

__________________________________________________________

2.

b. y + 2 = −⅔(x + 3)

a. y - 3 = ⅘(x - 5)

According to the Point-Slope Formula, y - y₁ = m(x - x₁), all the negative symbols give the OPPOSITE TERMS OF WHAT THEY REALLY ARE, so be EXTREMELY CAREFUL inserting the coordinates into the formula with their CORRECT SIGNS.

__________________________________________________________

1.

b. y = -x + 5

a. y = 5x - 3

Just write out the Slope-Intercept Formula as it is given to you.

I am joyous to assist you anytime.

3 0

3 years ago

Matthew has a savings account that gives 1.5 interest. If he keeps it open for 5 years and it has a balance of 2000 how much in

pochemuha

Answer:

15187.5=2000(1.5)^5

Step-by-step explanation:

So right now he has 2000 in his saving each year it grows by 1.5 so by year 5 it should be

15187.5 in his savings

hope I did it right

6 0

3 years ago

2(4 – 2r) = -2(r + 5) How do you know if it's identity or no solution and show work

lesantik [10]

Answer: r = 9

Step-by-step explanation:

2(4 - 2r) = -2(r + 5)

8 - 4r = -2r - 10 distributed

8 = 2r - 10 added 4r to both sides

18 = 2r added 10 to both sides

9 = r divided both sides by 2

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

Identity is when you end up with a TRUE statement after moving the x-values to one side of the equation.

For example: 2x + 2 = 2(x + 1)

2x + 2 = 2x + 2 distributed

2 = 2 subtracted 2x from both sides

TRUE so x is all real numbers

No Solution is when you end up with a FALSE statement after moving the x-values to one side of the equation.

For example: 2x + 1 = 2(x + 1)

2x + 1 = 2x + 2 distributed

1 = 2 subtracted 2x from both sides

FALSE so there are no solutions

5 0

4 years ago

Using Unit Rates to convert

miss Akunina [59]

Answer:

5 minutes

Step-by-step explanation:

To find the number of minutes it takes Jason to run a mile, we have to first find the rate at which he runs.

This is called Jason's speed. It is given as

$Speed = \frac{distance}{time}$

$Speed = \frac{440}{75}\\ \\\\Speed = 5.86 yards/second$

From the formula of speed, time is given as:

$time = \frac{distance}{speed}$

Time taken for Jason to run 1 mile (1760 yards) will therefore be:

$time = \frac{1760}{5.86} \\\\\\time = 300.34 secs$

Converting this time to minutes yields:

60 seconds = 1 minute

300.34 equals:

$\frac{300.34}{60} = 5.0 minutes$

It takes Jason 5 minutes to run 1 mile.

8 0

4 years ago