3x+2= x - 3
I need help with this!!

Answer:

5(x - 2)=5x-7 has no solution

-3(x - 4)=-3x+12 infinitely many solutions

4(x+1)=3x+4 no solution

-2(x - 3)=2x-6 infinitely many solution

6(x + 5)=6x+11 no solution

Step-by-step explanation:

5(x - 2)=5x-7

-3=0

-3(x - 4)=-3x+12

0=0

4(x+1)=3x+4

x=0

-2(x - 3)=2x-6

0=0

6(x + 5)=6x+11

30=11

I hope this helps.

Answer:

8

Step-by-step explanation:

6*(n + 15) = -42

Divide both sides by 6

6*(n - 15)/6 = -42/6

n - 15 = -7

n = -7 + 15

n = 8

The equation is solved and the number is n = -22

Given data ,

The sum of a number and 15 can be written as (n + 15)

Six times the sum of a number and 15 can be expressed as 6(n + 15).

According to the given information, this expression is equal to -42. So, we can write the equation:

6(n + 15) = -42

To solve for n, we need to simplify and isolate the variable.

Distribute 6 to the terms inside the parentheses:

6n + 6(15) = -42

Simplify:

6n + 90 = -42

Next, we want to isolate the variable term. Subtract 90 from both sides of the equation:

6n + 90 - 90 = -42 - 90

Simplify:

6n = -132

Finally, divide both sides of the equation by 6 to solve for n:

n = -132 / 6

Simplify:

n = -22

Hence , the number n is -22

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Answer:

well

Step-by-step explanation:

40 ÷ 5 = 8

so the answer should be an 8 inch toy bus

Answer:

1

Step-by-step explanation:

-4(-1)+-3

4+(-3)

=1

Answer: [tex]1[/tex]

Multiply

[tex]-4*-1=4[/tex]

Note: Multiply a negative to a negative will equal a positive.

Add

[tex]4+(-3)=1[/tex]

Answer:

B

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

60/15=4

The rate of change is 1/4 shovels/ minute of 0.25 shovels/ minute.

Rate of change is the increase or decrease of any property with respect to any other property, when rate of change is studied for a time duration, the ratio of the difference in the property from initial state to its value at the end of the time duration is divided by the total time.

For an expression, the rate of change is determined by differentiation.

The hardware store sold 15 shovels in sixty minutes.

The number of shovels sold is 15.

The time duration in which the shovels are sold is 60 minutes.

The rate of the shovels sold every minute has to be determined.

Rate = ( No. of shovels sold) / Time duration

Substituting the values

Rate = 15 /60

Rate = 1/4

Rate is 1 shovel sold every 4 minute.

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Answer:

Step-by-step explanation:

Length = 6m

Breadth =4m

[tex]Area = length\times breadth\\\\A = 6\times 4\\\\A= 24cm^2[/tex]

Answer:

area of carpet = 19.25 m²

Step-by-step explanation:

given:

A room measuring 6m x 4m is carpeted leaving space of 25cm all around.

find:

the area of the carpet

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

carpet is offset 0.25m all round.

area of carpet = (6 - 0.25 - 0.25) x (4 - 0.25 - 0.25)

area of carpet = 5.5 m x 3.5 m

area of carpet = 19.25 m²

Answer:

$4.12

Step-by-step explanation:

$26.78 / 6.5 gallons = $4.12 per gallon

Answer: $4.12

Step-by-step explanation: For every gallon the unit rate is $4.12 per gallon.

Hope this helped!

Answer:

6 and 11/25

Step-by-step explanation:

Turn demical number into an unreduced fraction, or 6 and 44/100. Then, reduce the fraction to simplest terms via dividing by a common factor. In this case, 11.

Answer:

Step-by-step explanation:

First I took the original price of the shirt (46.50) since it is going one third off I divided it by 3 (46.50/3=15.50)

I took away the one third I divided from it (46.50-15.50=31)

I got 31 dollars as my final answer.

Now Karim needs to buy the shirt for $31.

Answer:

$31

Step-by-step explanation:

Price of the shirt normally: $46.50

Deduction in the price when it's 1/3 off: 1/3 * $46.50 = $15.50

amount that Karim needs to pay to buy the shirt:

Price of the shirt normally - Deduction in price when it's 1/3 off =

$46.50 - $15.50 = $31.00

Answer:

13cm

Step-by-step explanation:

P=2l+2w

56=2(15)+2w

56=30+2w

26=2w

w=13

Answer:

$ 360

Step-by-step explanation:

Puppy is on sale for = $ 324

It is marked down by 10% from original selling price of $ 360

Markup from the original buying cost = $ 54

Original Cost was = 360 - 54 = $ 306

$ 360 was the original price which was marked down by 10%  i.e. $ 36 to the sale price of $ 324

Answer:

1) yes

2) yes

3) no

Answer:

the smaller number minused by the bigger number.

Step-by-step explanation:

Hopefully this helps you :)

pls mark my answer brainlest ;)

▪ Answer:

+ 16

▪ Step-by-step explanation:

Hi there !

(-2)^4 =

= (-2)(-2)(-2)(-2)

= (4)(-2)(-2)

= (-8)(-2)

= + 16

Good luck !

(-)(-) = +

(-)(+) = -

Answer:

tje answer is 4

Step-by-step explanation:

4x5=20

20-6=14

Answer: 1.83/10 or 18.3/100

Answer:

C

Step-by-step explanation:

We can divide the number of raisins by 8 because there are 8 bags (680÷8) which would be 85. Next we multiply the 85 by 12 because we need to find out the number of raisins in 12 bags (85×12), which would give us 1,020.

Answer:

a.  113/338

b. The relative frequency distribution is presented as follows;

[tex]{}[/tex]                                      St. John's wort              Zoloft                 Placebo

Full response [tex]{}[/tex]               27/91                             27/91                  37/91

Partial response [tex]{}[/tex]           16/55                             26/55                13/55

No response [tex]{}[/tex]                35/96                            7/24                    11/32

c. 29.67%

Step-by-step explanation:

a. The proportion of subjects assigned to take St. John wort is found as follows;

The total number of subjects = 27 + 27 + 37 + 16 + 26 + 13 + 70 + 56 + 66 = 338 subjects

The number of subjects assigned to take St. John wort = 27 + 16 + 70 =  113

The proportion of subjects assigned to take St. John wort = 113/338

b. The distribution of change in depression response using relative frequency is found as follows;

Total full response = 27 + 27 + 37 = 91

Total partial response = 16 + 26 + 13 = 55

No response = 70 + 56 + 66 = 192

[tex]{}[/tex]                                      St. John's wort              Zoloft                 Placebo

Full response [tex]{}[/tex]               27/91                             27/91                  37/91

Partial response [tex]{}[/tex]           16/55                             26/55                13/55

No response [tex]{}[/tex]                35/96                            7/24                    11/32

c. The percentage of subjects that took Zoloft and showed full response is given as follows;

The percentage of subjects that took Zoloft and showed full response = 27/91 × 100 = 29.67%

Answer:

x = 2, -4

Step-by-step explanation:

To find the answer to this question, we will have to find the values of x where:

-5|x + 1| + 3 = -12

We can solve this equation for x to find the values of x that satisfy this equation.

-5|x + 1| + 3 = -12

Subtract 3 from both sides.

-5|x + 1| = -15

Divide both sides by -5.

|x + 1| = 3

Now here, the equation will split off into two different equations. These two are:

x + 1 = 3

x + 1 = -3

Lets solve the first one first.

x + 1 = 3

Subtract 1 from both sides.

x = 2

Now we solve the second one.

x + 1 = -3

Subtract 1 from both sides.

x = -4

So now we have the answers x = 2 and x = -4.

So the values of x are x = 2, -4

I hope this helps.

Answer:

the answer is C

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

6k=-24+12

or,6k=-12

or,k=-12/6

or,k=-2

Answer:

The value of k is -2.

Step-by-step explanation:

First, you have to add 12 to both side :

[tex]6k - 12 = - 24[/tex]

[tex]6k - 12 + 12 = - 24 + 12[/tex]

[tex]6k = - 12[/tex]

Next, you have to divide by 6 :

[tex] \frac{6k}{6} = \frac{ - 12}{6} [/tex]

[tex]k = - 2[/tex]

Answer:

the slope is 3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

The slope of the line is 3

Answer:

x=5

Step-by-step explanation:

opposite angles are the same, so the small ones are 15. 180-30=150

150/2=75 75/15=5

Answer:

baby I'm a different yea yea yea yea ye

Answer:

1120.4 is what I got

Step-by-step explanation:

3000÷5000-200+921=721.6

answer is 721.6

Answer:

f(2)= -1

Step-by-step explanation:

[tex]f(d) = 2d -5\\\\f(2)=?\\\\[/tex]

Substitute ; Let d =2 in the given function

[tex]f(2)= 2(2) -5\\\\f(2) = 4-5\\\\f(2) =-1[/tex]

Answer:

B

Step-by-step explanation:

15>22+x

or, -x+15>22

or, -x>22-15

or, -x>7

or, x<-7 is your answer.

Answer:

y = 4x + 8

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 4 and c = 8 , thus

y = 4x + 8 ← equation of line

The equation in slope-intercept form is y = 4x+8

The equation of line is an algebraic form of representing the set of points, which together form a line in a coordinate system.

Given that, a line has a y-intercept of 8 and a slope of 4.

We know that, the general equation of a line is given by, y = mx+c

where m is slope and c is the y intercept,

Here, m = 4 and c = 8

Therefore, the equation can be, y = 4x+8

Hence, The equation in slope-intercept form is y = 4x+8

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Answer:

-5, -7, and -12

Step-by-step explanation:

A function is defined as a relation between a set of inputs having one output each.

The values of the function r(x) at x = -2, 0 and 5 are -5, -7, and -12.

A function is defined as a relation between a set of inputs having one output each.

The inputs are called the domain of the function.

The outputs are called the range of the function.

We have,

A function r(x)

r(x) = x - 7

The value of r(x) at x = -2:

r(-2) = - ( -2) - 7

r(-2) = 2 - 7 = -5

The value of r(x) at x = 0:

r(0) = -0 - 7 = -7

The value of r(x) at x = -2:

r(5) = -5 - 7 = -12

We see that,

Domain = -2, 0, and 5.

Range = -5, -7, and -12.

Thus,

The values of the function r(x) at x = -2, 0 and 5 are -5, -7, and -12.

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