Evaluate -8x+5-2x-4+5x

Evaluate -8x+5-2x-4+5x

Answers

Answer 1

Answer:

The value of the expression is - 9.

Evaluating the expression before simplifying is preferred because you only have to substitute once instead of substituting three times.

Step-by-step explanation:

x = 2

- 8x + 5 - 2x - 4 + 5x

= - 8x - 2x + 5x + 5 - 4

= - 10x + 5x + 1

= - 5x + 1

= - 5 ( 2 ) + 1

= - 10 + 1

= - 9


Related Questions

Which equation represents the line that passes through C(2,4) and is perpendicular to the graph of y=1/3x-1?

Answers

Answer:

Step-by-step explanation:

y=-3x + b   the slope is the negative inverse of 1/3

4=3(2) + b

b =-2

the equation is

y=-3x - 2

slope is the negative inverse.  You find the y intercept, b, by plugging in the point (2,4) to get 4=3(2)+b

If 3x + 2y= 14 and 5x + 3y = 12, then find the value of 5x- y.
a. 100
b. 124
c. -100
d. -124

Answers

I think the answer would be negative 124 NOT SURE

An aquarium has 5 gallons of water in it and is being filled up at a rate of g gallons every m minute. The amount of water w in the tank can be represented by the equation
w = 5 + g - m. Write an equation that can be used to find the number of minutes m the tank has been filled if we know w and g.

Write an equation that can be used to find the number of minutes g the tank has been filled if we know w and a.

Answers

Answer:

m=5+g-w

Step-by-step explanation:

This should be the answer based on the equation given.

Answer:

See below

Step-by-step explanation:

The equation for the amount of water is:

w = 5 + gm

Solve for m:

gm = w - 5m = (w - 5)/g

Now solve for g:

gm = w - 5g = (w - 5)/m

Find the area of a circle with a diameter of 18 inches. Use 3.14 for pi.

Answers

Answer:

254.34

Step-by-step explanation:

A=pi*r^2

A=3.14*9^2

A=3.14*81

A=254.34

In the equation 4x² - 16x + 12 = 0, the solution is?​

Answers

X= 3, 1



Hope this helps<3

Answer:

x = 3 or x = 1

Step-by-step explanation:

[tex] {4x}^{2} - 16x + 12 = 0 \\ {4x}^{2} - 4x - 12x + 12 = 0 \\ 4x(x - 1) - 12(x - 1) = 0 \\ (4x - 12)(x - 1) = 0 \\ [/tex]

(4x - 12) = 0 or (x - 1) = 0

[tex](4x - 12) = 0 \\ 4x - 12 = 0 \\ 4x = 0 + 12 \\ 4x = 12 \\x = \frac{12}{4} \\ x = 3 \\ [/tex]

[tex](x - 1) = 0 \\ x - 1 = 0 \\ x = 0 + 1 \\ x = 1[/tex]

x = 3 or x = 1 should be.

six cocker spaniels have a total weight of 192 pounds. Five golden retreivers have a average weight of 71 pounds. what is the average weight of all 11 dogs.

Answers

Answer:

23.9lbs or 24lbs

Step-by-step explanation:

This may not be correct so don't bet your first born on it

A man finished 2/3 of a project in 4hours. Working at the same rate, how long will it take him to finish 5/6 of the same project?

Answers

i’m pretty sure it’s 6 because you just need to add them together

It will take 6 hours to finish the same project.

How to find the time taking to finish the project?

From the given information, we get

[tex](\frac{5}{6} * \frac{2}{3} ) * 4[/tex] = 6

The answer is 6 hours.

What is problem-solving?

Problem-solving is the act of defining a problem; determining the cause of the problem; identifying, prioritizing, and selecting alternatives for a solution; and implementing a solution.

Learn more about Problem-solving here: brainly.com/question/23945932

#SPJ2

Two mechanics worked on a car. The first mechanic worked for 10 hours, and the second mechanic worked for 5 hours. Together they charged a total of $950. What was the rate charged per hour by each mechanic if the sum of the two rates was $125 per hour?

Answers

Answer:

First mechanic: $65.

Second mechanic: $60.

Step-by-step explanation:

Let the rates be x for the first mechanic and y for the second.

x + y = 125

10x + 5y = 950

Multiply first equation by - 5

-5x - 5y = -625

Adding the last 2 equations:

5x = 325

x = 65

y = 125-65 = 60 .

Which 2 of the following statements are TRUE about predicting WHAT HAPPENS AT 6 HOURS of babysitting? Select the TWO statements that are accurate.

A.
At 6 hours, the total cost for babysitting will be $60.

B.
I can predict the total cost at 6 hours by starting at the point at hour 5 and counting the RISE/RUN to move to the point at hour 6.

C.
I can predict the total cost at 6 hours by starting at the point at hour 5 and counting the RUN/RISE to move to the point at hour 6.

D.
At 6 hours, the total cost for babysitting will be $70.

Answers

Answer:

c and d

Step-by-step explanation:

i took the test those are the correct answers

Naomi is still not sure how many boxes of each type of candy to order. Her dad explains that he needs to do a little more mathematics before she can determine the best candy order. He creates a table to help her determine the solution.

He asks her to calculate how much money the band would make if she ordered 500 boxes of
each type of candy. He also asks her to calculate the profit on an order of 300 boxes of milk
chocolate and 500 boxes of dark chocolate. Determine both answers and show your work.

Answers

Answer:

how much does each box cost?

Step-by-step explanation:

What is the value of x in the proportion below? -

2/3 over 5 = x over 15

•2
•3
•10
•75​

Answers

Answer:

2/3 over 15 is 10

so 10/5=2

2 is the answer

Step-by-step explanation:

Ibrahim spends 1/3 of his earnings on food and 1/4 on clothes. He then saves the rest.what fraction does he (a) spend altogether (b)save 1 What fraction does he (a) spend altogether (b) Save?​

Answers

Spending = 1/3 + 1/4 = 4/12 + 3/12 = 7/12
Saving = 12/12 - 7/12 = 5/12

A fraction is written in the form of a numerator and a denominator where the denominator is greater than the numerator.

The formula for adding two fractions:

= a/b + c/d

= (ad + bc) / cd

The fraction spent altogether on food and clothes is 7/12.

What is a fraction?

A fraction is written in the form of a numerator and a denominator where the denominator is greater than the numerator.

Example: 1/2, 1/3 is a fraction.

We have,

Fraction of earnings spend on food:

= 1/3

Fraction of earnings spend on clothes:

= 1/4

Fraction of total spending on food and clothes.

= 1/3 + 1/4

= (4 + 3) / 12

= 7/12

The formula for adding two fractions:

= a/b + c/d

= (ad + bc) / cd

Fraction of earnings saved after spending on food and clothes.

= 1 - 7/12

= (12 - 7) / 12

= 5/12

Thus,

The fraction spent altogether on food and clothes is 7/12.

Learn more about fractions here:

https://brainly.com/question/24370499

#SPJ2

please help me with this sum​

Answers

Answer:

First column 107

Second Column 135

Third Column 104

Fourth Column 109

Fifth Column 160

Is this what you were needing? A sum of the numbers in each column?

Please allow me to know if I helped by clicking thank you, rating or brainly.

Miss Hawaii

0.35 x 9 = 3.15
Is this an overstatement understatement

Answers

[tex]over \: \: statement \: \\ \\ 0.35 \times 9 = 3.15 \\ \\ multiply \: 0.35 \times 9 \\ 3.15 = 3.15 \\ \\ so \: the \: answer \: is \: \: overstatemnt \\ \\ hope \: \: it \: \: helps[/tex]

solve the following inequality for n -5n+6≥-7(5n-6)-6n

Answers

Answer: The inequality is: n ≥ 36/37

Step-by-step explanation:

Let's solve your inequality step-by-step.

n − 5n + 6 ≥ −7(5n−6)−6

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

Step 1: Simplify both sides of the inequality.

−4n + 6 ≥ −41n + 42

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

Step 2: Add 41n to both sides.

−4n + 6 + 41n ≥ − 41n+ 42 + 41n

37n + 6 ≥ 42

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

Step 3: Subtract 6 from both sides.

37n + 6 − 6 ≥ 42 − 6

37n ≥ 36

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

Step 4: Divide both sides by 37.

37n/37 ≥ 36/37

n ≥ 36/37

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

Answer:

n ≥ 36/37

Source: https://www.mathpapa.com/calc.html?q=x+y%3D7%2C%20x+2y%3D11

,  Hope this helps :)

Have a great day!!

What phrase in the problem indicates that estimated product is being asked for?


Pa HELP POOOOOOOO​

Answers

Answer:

571 x 32 = 18,272

Step-by-step explanation:

Okay, multiplication was always a favorite.

Think of this, 571 thirty-two times.

y < -2x + 1
x + 2y > -4

Answers

Answer:

99

Step-by-step explanation:

needing help with fraction problem

4/11 - 10/8 equals?

having trouble breaking it down to get the answer

Answers

Answer:

71/44

Step-by-step explanation:

Here the LCD is the product of the two denominators given:  11*8 = 88.

We rewrite 4/11 as 32/88 and 10/8 as 110/88.  Now the denominators are the same.

Combine  32/88 and 110/88.  We get the sum  142/88, which reduces to 71/44.

Answer:

-39/44.

Step-by-step explanation:

We need to find the lowest common multiple of 11 and 8.

This is 88.

Now to convert the 2 fractions to denominator 88 we multiply first by

8/8 and the second by 11/11:

4/11 - 10/8

= 32/88 - 110/88

= -78/88

= -39/44

C. Direction : Arrange the events in the menstrual cycle. Write the number that corresponds to
the order of the event in the cycle.


________1. Menstrual flow


________2. Release of the egg


________3. Shedding of the
endometrium


__________4. Thickening of the endometrium

Answers

Answer:

4

3

2

1

Step-by-step explanation:

so thickening of the endometrium

then shedding of the endometrium

release of the egg

then menstrual flow

4,3,2,1 is the correct order of events

What is the length of the red line segment on the number line?


A. 2
B. 2 1/2
C. 1
D. 1 1/2

Answers

Step-by-step explanation:

I think it's D 1 1/2......

Mako runs 10 miles in 2 hours. If he continues at this rate, how many miles
will he run in 5 hours?
A. 50 miles
B. 10 miles
O C. 25 miles
O D. 30 miles

Answers

Answer:

Answer: 25 miles

Step-by-step explanation:

Explanation: He will run 5 hours= 5x5=25

Answer:

25 miles

Step-by-step explanation:

I'll create a set of proportions to figure out the answer (represented by x):

2:10 = 5:x

It looks like our proportion on the left, 2:10, can be simplified by dividing both sides by 2 to get 1:5.

1:5 = 5:x

You can multiply 1 by 5 to get 5, so we should be able to multiply 5 by 5 to get the value of x. 5 times 5 is 25, so the answer to the question is 25 miles.

If you have questions or need clarification on anything, let me know!

Hi ppl of brainly. I need some help with my math assignment. explain if u can (if u can't, that's okay ) if you dont know it. please dont answer it. if u have any questions about the question, please drop in a comment!

Answers

Answer:

17.156

Step-by-step explanation:

A rational number has has a terminating decimal expansion or a decimal expansion of non-terminating repeating digits. Here, the decimal expansion is terminating, so it is a rational number.

Answer:

C. 17.156

Step-by-step explanation:

A rational number is any number that can be expressed as a fraction. So for example, since [tex]\sqrt{2}[/tex] cant be expressed as a fraction, it isn't rational. A number like 1.25 on the other hand IS rational as it can be expressed as [tex]\frac{5}{4}[/tex] or [tex]\frac{125}{100}[/tex].

Option C can be expressed as [tex]\frac{17156}{1000}[/tex], so it must be rational.

- Note that if a number has a finite amount of digits after the decimal (ie it doesn't go on forever like option B), it can be represented as a fraction and thus is rational.

Find the domain and range for the function shown in the
graph given below.

Answers

Answer:

d{0 less than or equal to x less than or equal to 20, xer}

r{0 less than or equal to y less than or equal to -6,yer}

Step-by-step explanation:

The Domain and Range of the graph given is -

Domain ↔  [1, -6]

Range ↔ [- 21, 20]

We have a graph as shown in the figure.

We have to determine its domain and range.

What do you mean by domain and range of a function?

For any function y = f(x), Domain is the set of all possible values of y that exists for different values of x. Range is the set of all values of x for which y exists.

According to question, we have -

From the graph it is clear that -

The values of y belong to the set - [1, -6]

and

The values of x belong to the set -  [- 21, 20]

Therefore, according to the definition of domain and range -

Domain ↔  [1, -6]

Range ↔ [- 21, 20]

Hence, the Domain and Range of the graph given is -

Domain ↔  [1, -6]

Range ↔ [- 21, 20]

To solve more questions on finding the domain and range of functions, visit the link below -

brainly.com/question/1632425

#SPJ2

Evaluate 5 - (4 + 2)^2. Show the steps

Answers

Answer:

-31

Step-by-step explanation:

1. Simplify 4+2 to 6

5-6^2

2.Simplify 6^2 to 36

5-36

3.Simplify

-31

Hope this helps :)

5 - (4+2)^2

add what is inside of the parentheses

4 + 2 = 6

then do the exponent, which would be 6 times itself

5 - 6^2

6(6)

then subtract 36 from 5, which gives the answer of -31.

5 - 36 = -31

the answer is -31, hope this helps!

write an equation of the line passing through the point( 3, -1) and parallel to the line y=2/3 x-5

Answers

Answer:

[tex]y = \frac{2}{3} x - 2[/tex]

Step-by-step explanation:

find The y-intercept

[tex] - 1 = \frac{2}{3} (3) + b \\ - 1 = 1 + b \\ b = - 2 \: \: \: \: y - intercept[/tex]

The equation of the line

[tex]y = \frac{2}{3} x - 2[/tex]

The function y = 5.75 + 2.5(x - 2) can be used to determine cost in dollars to rent a house of x square feet. What is the rate of change of the cost in dollars with respect to the number of square feet?

Answers

The rate of change is given by the coefficient of x in the cost function. Hence, the rate of change of cost in the function is 2.5

Given the cost function :

y = 5.75 + 2.5(x - 2)

Expanding the function and expressing in slope intercept form:

y = 5.75 + 2.5x - 5

y = 2.5x + 2.75

Therefore, the slope of the function is 2.5 ; which ubsthe rate of change of the cost function.

Learn more :https://brainly.com/question/18112348

Giving brainliest for number 31

Answers

Answer:

b, d, c

Step-by-step explanation:

Answer:

C.

Step-by-step explanation:

f(x)=x²-x

#CarryOnLearning

hopeithelps,,thanks

Scientists often write very large or very small numbers using exponents. How might a scientist write the number shown using exponents?

make it look like a seventh grader wrote it please

Answers

Which number? I don’t see a number

solve pls brainliest

Answers

Hey there!

39 = - u / 6

MULTIPLY 6 to BOTH SIDES

39(9) = (-u / 6)(6)

CANCEL out: the RIGHT side

KEEP: the LEFT side because it helps solve for the u-value

NEW EQUATION: -u = 234

DIVIDE -1 to BOTH SIDES

-1u / -1 = 234 / -1

CANCEL out: -1 / -1 because it gives you 1

KEEP: 234 / -1 because it gives you the result of the u-value

NEW EQUATION: u = 234 / -1

SIMPLIFY IT!

u = -234

Therefore, your answer is: [u = -234]

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

-234

[tex]u = ( - 6) \times 39 = - 234[/tex]

what is the slope of the line that contains the points (7, -1) and (-2, 2) ?

A - 1/3
B 1/3
C - 3
D - 2

Answers

Step-by-step explanation:

m = [tex]\frac{y_{2}- y_{1} }{x_{2} -x_{1} }[/tex]

m = [tex]\frac{2-(-1)}{(-2)-7}[/tex]

m = [tex]\frac{3}{-9}[/tex]

m = [tex]-\frac{1}{3}[/tex]

Please give me a brainliest answer

Other Questions
which market structure is defined by a single producer? Explain why the triangle are similar. Then find the distance represented by x plz someone help pzzzzzzzzzzzz In general, it is wise to keep in touch with everyone in your business network at least once every __________.a.Yearb.Monthc.Six monthsd.WeekPlease select the best answer from the choices providedABCD Which phrase best describes the relationship of the underlined words in this sentence? Agreements between nations and people's strong sense of national pride are what led to World War I. A. Word-connotation B. Item-category C. Part-whole D. Cause-effect You have learned that both views of literature are being argued for today. According to the text, the more dominant view held by influential critics, teachers, and college professors is _____.traditionalprogressive solve pls brainliest Which statements include two quantities in the real world that are additive inverses?Select each correct answer.A. Mia walked 5 mi north and then walked 5 mi west.B. A scuba diver descends 40 m from sea level and then descends another 10 m.C. Gabriella charges $300 on her credit card and then pays the $300 credit card bill.D. A helium atom has 2 positively charged protons and 2 negatively charged electrons. What value of x satisfies the equation 5(x 3) 2(x + 1) = 4? iba un faraon en su camello pero en realidad iba a pie como se llama el perro del faraon ALL FELLOW PEOPLE I NEED HELP ASAP ! WILL MARK BRAINLIEST!!EXTRA POINTS !!!! can people smell my breath with a mask on?! find all the positive words reliablediligent responsible impatient erratic indifferent zealousambitious unfriendly moody forgetfulpunctual generousinsincerecaringhumble Helppppppp pleaseee tyy smmm Which of the following correctly orders events during mitosis?a) Microtubules organize the chromosomes. The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes.b) The nuclear membrane dissolves. Microtubules organize the chromosomes. The mitotic spindle attaches to chromosomes.c) The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes.d) The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes. The nuclear membrane dissolves. Summarize your results of the personality assessment and how you think these elements might help or hinder you as a leader. Question 1 of 5An atom's nucleus contains 8 particles that have no charge and 6 particlesthat are positively charged. What is the atomic number of the atom?A. 2OB. 8C. 6D. 14SUBMIT Need help on this question! What occurred during the battle of Antietam that made the Confederacy not win this close battle? Put the following in chronological order.1. The Middle Ages2. Louis XIV (14) Reign in France1 3. Louis XVI (16) Reign in France1 4. The Roman Empire