3 - 7x plus 2x when x =3

Answers

Answer 1

Answer:

-12

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Step-by-step explanation:

Step 1: Define

3 - 7x + 2x

x = 3

Step 2: Evaluate

Substitute in x:                    3 - 7(3) + 2(3)Multiply:                               3 - 21 + 6Subtract:                              -18 + 6Add:                                     -12
Answer 2

Answer:

if x is 3 then

3-7(3)+2(3)

-18+6

-12 done


Related Questions

Which is the quotient of 17. 51 +3.4?
O A. 5.07
O B. 5.15
OC. 5.21
D. 5.25 HELP THIS ENDS IN 10 MINUTES

Answers

Answer:

5.15

Step-by-step explanation:

17.51 / 3.4 = 5.15

Answer and Explanation

5.15 or [tex]\frac{17.51}{3.4}[/tex]

__________________________________________________________

We can prove this is the answer by dividing both numbers.

__________________________________________________________

[tex]17.51[/tex] = [tex]\frac{1751}{100}[/tex]

[tex]3.4[/tex] = [tex]\frac{17}{5}[/tex] = [tex]3\ \frac{2}{5}[/tex]

__________________________________________________________

[tex]\frac{1751}{100}[/tex] [tex]\div[/tex] [tex]\frac{17}{5}[/tex] = [tex]?[/tex]

[tex]\frac{17.51}{3.4}[/tex] [tex]or[/tex] [tex]5.15[/tex]

__________________________________________________________

So, that means the answer is [tex]5.15[/tex]

__________________________________________________________

Hope this helps! <3

__________________________________________________________


Dan eats of a pizza.
2
Rachel eats another of the pizza.
What fraction of the pizza was eaten?

Answers

the answer is 3/5 on slime

Explain how to find vertical and horizontal asymptotes of a rational
equation.

Answers

Answer:

Step-by-step explanation: If the degree (the largest exponent) of the denominator is bigger than the degree of the numerator, the horizontal asymptote is the x-axis (y = 0).

If the degree of the numerator is bigger than the denominator, there is no horizontal asymptote.

write an equation for the line that passes through the given points (-2,9) And (1 ,-3)​

Answers

Answer:

Finding slope: y2-y1/x2-x1

3-9/1+2

=-6/2

Divide 2 from both

=-3/1 or -3

Slope= -3

Finding y-intercept= y=mx+b

Choose any point on the line to plug in the x and the y then plug in the slope.

I choose (1,3)

3=-3×1+b

3=-3+b

Add 3 to both sides

6=b

Y-intercept=6

Equation: y=-3x+6

Step-by-step explanation:

What number is 150% more than 2/3

Answers

Answer:

4.5

Step-by-step explanation:

Answer:

0.4 repeating

Step-by-step explanation:

Divide 2/3 by 150%

2n + 3 = -3.2 what is the answer to n

Answers

Answer:n=-3.1

Step-by-step explanation:

2n + 3 = -3.2

Subtract 3 on both sides

2n+3-3=-3.2-3

2n=-6.2

Divide 2 on both sides

2n/2=-6.2/2

n=-3.1

Answer:

n= -3.1

Step-by-step explanation:

hope this helps have a nice day :)

Help please!!! Math, look at the picture. When you click the pic it's clearer

Answers

Answer:

radius: 4.2 cm

circumference: 26.376 cm^2

area: 55.3896 cm^2

Step-by-step explanation:

radius is half the diameter so 8.4/2 = 4.2

circumference: C = (2)(pi)(r) ---> (2)(3.14)(4.2) --> 26.376

area: (pi)(r ^2) --> (3.14)(4.2^2) --> 55.3896

What is the volurne of the figure? Enter the answer in the box.
Cubic feet

Answers

Answer:

2700ft cubed

Step-by-step explanation:

Ben spent $430 this month and earns 2% cash back. How much cash back 2 points
will he receive?
*

Answers

Answer:

$8.60

Step-by-step explanation:

Geometry help, ie: linear, exponential, discrete, continuous

Answers

Answer:

Exponentail and Continuous

Step-by-step explanation:

Esponentail because the graph is going up by 3 times the pevous making the line curved, and Continuous because time continuses to pass through the  hours. (although if it is only looking at the point on the hour it is descrete).

Number the steps for balancing equations:

Answers

Step 1: The Unbalanced Chemical Equation. The unbalanced chemical equation is given to you. ...
Step 2: Make a List. ...
Step 3: Identifying the Atoms in Each Element. ...
Step 4: Multiplying the Number of Atoms. ...
Step 5: Placing Coefficients in Front of Molecules. ...
Step 6: Check Equation. ...
Step 7: Balanced Chemical Equation.

A gallon of gasoline cost $3.00 last year, and now costs 5% more. What is the cost of a gallon of gasoline now?

a) 4.50
b) 3.15
c) 3.05

Answers

Answer:

B

Step-by-step explanation:

We know that Last year one gallon costs $3.00

and we also know that it costs %5 more this year.

We know that %100 is always the same which is $3.00

Then since we know $3.00 is %100, we can add %5 to %100 to get %105.

Then you multiply 105/100 by 3 then you will get 3.15 which is what B is

So that means our answer is B

The answer is b hope this helps

Change in y:
Change in x:
Slope:​

Answers

Answer:

a) 5, b) 6, c) 5/6

Step-by-step explanation:

Use the two points from the graph:

(0, 0) and (6, 5)

a) Change in y is:

5 - 0 = 5

b) Change in x is:

6 - 0 = 6

c) Slope is:

Change in y / change in x = 5/6

find the midpoint rounded to the nearest hundreth a (-2,1) b (-1,1)

Answers

Answer:

[tex](-1.5, 1)[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Midpoint Formula: [tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]

Step-by-step explanation:

Step 1: Define

Endpoint A (-2, 1)

Endpoint B (-1, 1)

Step 2: Find Midpoint

Simply plug in your coordinates into the midpoint formula to find midpoint

Substitute [MF]:                    [tex](\frac{-2-1}{2},\frac{1+1}{2})[/tex]Subtract/Add:                       [tex](\frac{-3}{2},\frac{2}{2})[/tex]Divide:                                  [tex](-1.5, 1)[/tex]

Give the domain and range of the relation. Tell whether the relation. Tell whether the relation is a function.

Answers

Answer:

It is the 4th option. Domain -3 ≤ x ≤ 3.   Range -2 ≤ y ≤ 2. This is not a function since it does not pass the vertical line test.

sammy and two friends rented three life jackets and a sailboat . the life jackets were $3 each and boat was $12 an hour . The total cost was $81 . for how many hours did they rent the sailboat

Answers

3 life jackets  $3.00= $9.00

1 sailboat  $12.00/hr

Total cost = $93.00

93-9= 84

84/12= 7

7 hours

Hey guys! I have some math questions I need help with! If your interested to help me please comment! Pls help me ASAP I don’t have time. You can put you snap or instagram user so I can DM you.

Answers

Answer: what is your question

Step-by-step explanation: Also for what subject

What is the problems

Joy bought 288 small pieces of candy to share with her friends. She divided the candy into 18 bags. One of the bags will be shared by two people, Lupe and Conner. If Lupe and Conner get the same number of candy pieces, how many pieces do they each get?

Answers

Answer:

32

Step-by-step explanation:

You must divide 288 by 18 and then double the answer you get.

WILL MARK BRANLIEST ANSWER IF GOTTEN RIGHT

Answers

Answer:

corresponding angles im pretty sure

Answer:

Corresponding angles

Step-by-step explanation:

It was -5Cin Copenhagen and -12C in Oslo. Which city was colder?

Answers

-12°C is colder than -5°C.

can you please help ​

Answers

Answer:

f = -0.032

Step-by-step explanation:

I looked it up

Answer:

-0.032

Step-by-step explanation:

f/-3.2=0.01

f=-3.2×0.01 (cross multiplication)

f=-3.2×1/100

f=-0.032

Alexander is a stockbroker he earns 11% commission each week last week he sold $7000 worth of stocks how much did he make last week in commission if he averages the same amount each week how much did he make in commission in 2011

Answers

Answer:

the amount that he makes last week and in the year 2011 is $770 and $40,040 respectively

Step-by-step explanation:

The computation of the amount that he makes last week and in the year 2011 is as follows:

= Sale value of the stocks × earning percentage × number of weeks in a year

= $7,000 × 11% × 52 weeks

= $40,040

hence, the amount that he makes last week and in the year 2011 is $770 and $40,040 respectively

We simply applied the above formula so that the correct value could come

And, the same is to be considered

The Martinez family spent 28% of its monthly income for housing. If the family’s monthly income is $3,200, how much did they spend for housing?

Answers

Answer:.

Step-by-step explanation:

I really need this done today please help PLEAASSSEEE

Answers

Answer:

A and C

Step-by-step explanation:

Answer:

If I am correct, the answer is A, C

Step-by-step explanation:

A number n is less than or equal to -7 or greater than 12.

Inequality: [ ] or [ ]

Graph the inequality.

Answers

Answer:

N ≤ -7 N > 12

Step-by-step explanation:

The inequality for the given statement is n≤-7 or n>12.

The given statement is a number n is less than or equal to -7 or greater than 12.

What is an inequality?

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values.

Now the inequality for the given statement is n≤-7 or n>12.

Graph for the obtained inequality is plotted, given below.

Therefore, the inequality for the given statement is n≤-7 or n>12.

To learn more about an inequality visit:

https://brainly.com/question/20383699.

#SPJ5



PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((

Answers

Answer:

ddddd

Step-by-step explanation:

D SORRY IF IM WRONG

I will give brainliest to the best answer.

A random two digit number (10-99) is drawn. Find each probability

1. p(32)
2. p(odd number)
3. p(a multiple of 5)

My teacher gave an assignment on this and didn't even teach how to do it.​

Answers

Given that two digit numbers are used and one digit is drawn randomly.

Sample space = {10,11,...99}

n(S) = 90

32 is only one number favorable

Hence P(32) = 1/90

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

Odd numbers are exactly 45.

Hence prob (odd number) = 45/90 = 1/2

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

Multiples of 5 are 10,15,.....95

There are exactly 18 numbers.

Hence P(a multiple of 5) = 18/90 =1/5

Have an amazing day! <3

What dividend is represented by the synthetic division below?

Answers

Answer:

2x^3+10x^2+x+5

Step-by-step explanation

Answer to edge

Answer:

B - 2x^3 + 10x^2 + x + 5

Step-by-step explanation:

In ΔWXY, the measure of ∠Y=90°, XW = 85, WY = 77, and YX = 36. What is the value of the cosine of ∠W to the nearest hundredth?

Answers

Answer:

0.91

Step-by-step explanation:

How is (5 , -7) and (-5 , 7) related on a coordinate plane?

Answers

Answer:

they are on opposite quadrants and they meet exactly in the origin (0,0)

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