What is 2x+1+7x=-8? Could you show work, please?

Answer:

10

Step-by-step explanation:

Answer:

x=−0.714286

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−2.5(−2−3x)+2.5(−4x−1)=−2x−4x

(−2.5)(−2)+(−2.5)(−3x)+(2.5)(−4x)+(2.5)(−1)=−2x+−4x(Distribute)

(7.5x+−10x)+(5+−2.5)=(−2x+−4x)(Combine Like Terms)

Step 2: Add 6x to both sides.

Step 3: Subtract 2.5 from both sides.

Step 4: Divide both sides by 3.5.

x=−0.714286

Answer:

yes, they are equivalent

Step-by-step explanation:

solving each expression fully, you will find that both are equal to 77

Answer:

They are equivalent.

Step-by-step explanation:

7⋅11⋅13+13and7⋅6⋅5⋅4⋅3⋅2⋅1+5 are composite numbers.

Answer: y= - 4x+18

Step-by-step explanation:

Equation: y=mx+b

***remember: b is the y-intercept and m is the slope.

m=[tex]\frac{y2-y1}{x2-x1}[/tex]

3= x1

2= x2

6= y1

10=y2

m=[tex]\frac{10-6}{2-3}[/tex]= [tex]\frac{4}{1}[/tex]= -4

m=-4

Now we have y=-4x+b , so let's find b.

You can use either (x,y) such as (3,6) or (2,10) point you want..the answer will be the same:

   (3,6). y=mx+b or 6=-4 × 3+b, or solving for b: b=6-(-4)(3). b=18.

   (2,10). y=mx+b or 10=-4 × 2+b, or solving for b: b=10-(-4)(2). b=18.

Equation of the line: y=-4x+18

Answer:

maybe  -5z-1?

Step-by-step explanation:

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following :

Proportion of males, P(M) = 77% = 0.77

Proportion of females = ( 1 - proportion of males) = (1 - 0.77) = 0.23

Percentage of males who smoke cigar = 11.3% = 0.113

Percentage of female who smoke cigar = 2.1% = 0.021

Expressing cigar smoking Data as conditional probability :

P(male and smoking) = P(M n C) = 0.113

P(Female and smoking) = P(F n C) = 0.021

Probability of smoking cigar Given the person is a male :

P(C | M) = P(M n C) / P(M)

Probability of smoking cigar Given person is a female :

P(C | F) = P(F n C) / P(F)

Find the probability that the selected subject does not smoke cigars given that the subject is male?

No smoking Given Male = 1 - P(C | M)

P(C | M) = P(M n C) / P(M)

P(C | M) = 0.113 / 0.77

P(C | M) = 0.1467

1 - P(C | M)

1 - 0.1467

= 0.8533

Answer:

The answer is C

.......

Answer:

-(-1)^2-4(-1) =5

[tex]f(x) = 5[/tex]

Answer:

We can't see the graph

Step-by-step explanation:

Uhh look at the # points like 123 ya know

Answer:

can't see graph

Step-by-step explanation:

Answer:

If the numerator of a fraction is greater than or equal to its denominator, then the fraction is an improper fractio. That is the fraction a/b is called improper if a ≥ b.

Example : 1/1,  2/1,  5/1,  4/3,  6/4,  9/5,  7/7, ...etc

Answer:ehm.. no

Step-by-step explanation:

Answer:

1 + 1 = 2

Step-by-step explanation:

Answer:

Square Root of 48 to the nearest tenth, means to calculate the square root of 48 where the answer should only have one number after the decimal point. To check that the answer is correct, use your calculator to confirm that 6.92 is about 48.

Step-by-step explanation:

There ya gooooo :)

The value of the expression √48 will be given as 6.93.

When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

The expression is given below.

⇒ √48

The power of the number 48 is 1/2. Then the value of the expression will be

[tex]\rightarrow \left ( 48 \right )^{\frac{1}{2}}\\[/tex]

→ 6.93

The value of the expression √48 will be given as 6.93.

More about the value of expression link is given below.

https://brainly.com/question/23671908

#SPJ2

Answer:

Step-by-step explanation:

We are going to multiply both equations because we want to found how much she made that week.

(3x + 6)(x - 2)

~Use FOIL

(3x * x) + (3x * -2) + (6 * x) + (6 * -2)

~Simplify

3x² - 6x + 6x - 12

~Combine like terms

3x² - 12

Best of Luck!

3x²

-

12

Step-by-step explanation:

We are going to multiply both equations because we want to found how much she made that week.

(3x + 6)(x - 2)

~Use FOIL

(3x * x) + (3x * -2) + (6 * x) + (6 * -2)

~Simplify

3x² - 6x + 6x - 12

~Combine like terms

3x² - 12

Best of Luck!

Answer:

13

Step-by-step explanation:

I think the turtle would be 13 and 1/3 because we know that the turtle is half as old as the parrot. So if we divide 10 by 3/4 we can get how old the turtle is now

The system of the equation is :

[tex]2x=y\\3y-4x=10[/tex]

Thus, the age of the ava's turtle is 5 years.

Given:

Ava's turtle is half as old as her parrot.

The turtle will be 3/4 as old as her parrot in 10 years.

Let us assume the age of the turtle is x years and the age of the parrot is y years.

According to the first statement, the variables can be related as:

[tex]{x}=\dfrac{y}{2}\\2x=y[/tex]

According to the second statement, the variables can be related as:

[tex]\begin{aligned}x+10&=\dfrac{3}{4}(y+10)\\4(x+10)&=3(y+10)\\4x+40&=3y+30\\4x-3y&=-10\\3y-4x&=10\end{aligned}[/tex]

Thus, the system of the equation is :

[tex]2x=y\\3y-4x=10[/tex]

By solving the above system of the equation, we get x=5 and y=10.

Thus, the age of the ava's turtle is 5 years.

To know more about the system of the equation, please refer to the link:

https://brainly.com/question/2146068

Answer:

Can you type the choices please?

pretty sure this is right!

Answer:

Step-by-step explanation:

(x + 1)/2 = 6

x + 1 = 12

x = 11

(y -10)/2 = -6

y - 10 = -12

y = -2

(11, -2)

Answer: 9 months

Step-by-step explanation:

It's a pattern of multiplying by 2.

4 x 2 = 8

8 x 2 = 16

16 x 2 = 32

32 x 2 = 64

64 x 2 = 128

128 x 2 = 256

256 x 2 = 512

512 x 2 = 1,024

Have a good day! <3

Answer:

[tex]13=7+\frac{1}{5}x[/tex]

Step-by-step explanation:

The answer would be 30

Answer:The answer is B.  Think about it this way, You have five rows, ANd ur trying to divide all five rows into 1/5. So you have to  spilt five rows into five sections.. And color in one row because its one out of 5.. ( hope i helped im bad at explaining but hopefully you get what im trying to say) Can i get brainliest pls?

Answer: Your answer would be 3

Answer:

= 7 + 2y.

Step-by-step explanation:

Collect like terms.

(9 − 2 ) + (7y − 5y )

Simplify.

= 7 + 2y.

Hope this helps.

Have a good night ma'am/sir.

Be safe!

Answer:

you would simply calculate the slope for each, a graph it is easy because you simply get two points on the graph and solve for it (y2-y1/x2-x1), an equation if it is in slope intercept form, the coefficient of x is the slope, from a table you use a similar method to a graph except you grab two values/instances, let's say in a table the numbers are presented like this:

3   4

2   6

You would then simply do the same thing for solving for the slope (y2-y1/x2-x1). In this instance it would be 6-2/4-3=4/1

All of these would give you the rate of change as the slope is the rate of change.

Step-by-step explanation:

Answer:-4

Step-by-step explanation:

Answer:

forgive me if I'm wrong, but I believe that a is -2.25. someone, please comment if I'm incorrect.

Step-by-step explanation:

I subtracted 3.25a from both sides and got

0.75a+5=2

then I subtracted both sides from 5 and got

0.75a=-3

divided both sides by 0.75

and I got a= -2.25

Answer: $54

Step-by-step explanation:

50/100 times 108

= 1/2 times 108

= 108/2

= 54

therefore, 108% of $50 is $54

Answer: 54

Step-by-step explanation:  108% of $50

=50/100 X 108

=1/2 X 108

=54$

Answer:

The answer is B

2x to the power of 3

Step-by-step explanation:

2x to the power of 7 minus 4 equals

2x to the power of 3

Answer:

253 is the answer

Step-by-step explanation:

Divide 2,277 and 9.

Answer:

28 years

Step-by-step explanation:

youngest brother's age = x

middle brother's age = x+2

oldest brother's age = x+4

3(x-2) = (x+2)+48

[simplify]

3x-6 = x+50

[add 6 to each side]

3x = x+56

[subtract x from each side]

2x = 56

[divide each side by 2]

x = 28

Answer:

it will take him 24 months to save the guitar

Step-by-step explanation:

Answer:

The equation in the slope-intercept form is

y = -5x - 41

Step-by-step explanation:

The given equation in the question is;

y = -5x + 2

The equation of a straight line graph can be written in the form;

y = mx + c

where m is the slope and c is the intercept

From here, we can see that the slope m is -5

Since the line is parallel to the new line we are trying to write its equation, it means that they have the same value of intercept.

Hence, the slope of the new line is also -5

Now, we can write the equation of the new line as;

y = -5x + c

we need to get the value of c here however

To get the value of c, we need to input the value of x and y

From the graph, x = -7 and y = -6

Substituting these values, we have;

-6 = -5(-7) + c

-6 = 35 + c

c = -6 -35

c = -41

So the equation of the new line will be;

y = -5x - 41