Sue claims that the solution to the equation 12x-3(5+4x)=7x+20 is x =-5 she shows the steps below to justify her solution

Answers

Answer 1

Answer:

Sue is correct and I did the steps below.

Step-by-step explanation:

12x-3(5+4x)=7x+20

12x-15-12x=7x+20

-15=7x+20

-35=7x

-5=7


Related Questions

PLEASE HELP ITS TIMED!!!
Order from least to greatest -1/2, -3/4, -2/5

Answers

Answer:

-2/5, -1/2, -3/4

Step-by-step explanation:

You have to have the same denominator.

-10/20, -15/20, -8/20

Hope this helps!

PLEASE HELP! WILL MARK BRANLIEST
A university has 34,590 students. In a random sample of 165 students, 11 speak three or more languages. Predict the number of students at the university who speak three or more languages.



The expected number of students at the university who speak three or more languages is____

Answers

11/165 = x/34590
165x = 380490
x=2306
The expected number of students at the university who speak three or more languages is 2,306.

which graph represents the solution for the following inequality

c < -2​

Answers

Answer:

I am pretty confident that the answer is the last one

Step-by-step explanation:

I'm not really sure how to explain though lol.

Hope  this helps!

Find the slope between (4,5) and (‐3, 6).

Answers

Answer:

-1/7

Step-by-step explanation:

to find slope y2-y1 / x2-x1

6-5/-3-4

1/-7

Solve 7(f-5) = 28
Help meeeee

Answers

7f - 35 = 28
7f = 63
F = 9

Answer:

7(f-5)=28

f-5=28/7

f-5=4

f=9

How do you identify proportional relationships?

Answers

You asked "How do you identify proportional relationships?"

It would be by determining whether two quantities are in a proportional relationship.

Find the slope and y-intercept of the line in the graph:

Answers

2 i believe i’m pretty sure

Answer:

Slope: -2/3

Y-intercept: 2

Henry can fold 80 take-out pizza boxes every 40 minutes. How long will it take for him to fold 120 boxes?

Answers

Answer:

60 minutes to fold 120 boxes

Step-by-step explanation:

easy, simply divide 40 by 2 then multiply it by 3 because this will mean hes folded 120 boxes...

40 divided by 2 is 20 times 3 is 60

80 divided by 2 is 40 times 3 is 120.

Answer:

3200

Step-by-step explanation:

you will multiply 80 by 40

80×40=3200

help me plz i’m begging

Answers

Answer:

I believe the answer is the first one. definitely not the third or fourth. and it should only be exponented by t not 2t because then it'd be double what you should have.

Enry can make 8 cupcakes (the y value) with one cup of flour (the x value). How many cupcakes can he make with 7 cups of flour?

Answers

Answer: 8x7=56 so 56

Step-by-step explanation:

Rewrite the function
g(x) = 4x2 – 28x + 49

Answers

g = 4x^2 - 28x+49x to rewrite the function

Answer:

g(X)=4(x-7/2)^2+0

Step-by-step explanation:

khan said it was right

the diameter of a bail ball is 6cm. what is the volume? round to the nearest whole number​

Answers

Answer:

lnkbprtngbp knmbmt[onbmorbmntionbtlrmbvlnrpoigmboigmnb

Step-by-step explanation:

How did ancient camels differ from those of today

Answers

Como pongo mi brainly en español porq esta en inglés

help me plz i’ll give extra points

Answers

Answer:

B) mass and height

Answer:

B

Step-by-step explanation:

Gravitational potential energy depends on an object's weight and its height above the ground (GPE = weight x height).

Is x ^ 2 + y ^ 2 = 6 a function?

Answers

Answer:

not a function

Step-by-step explanation:

for example

In order for an equation to represent a function any single value of x must have at most one corresponding value of y which satisfies the equation.

For x2+y2=9

XXXXif (for example) x=0

XXXXthere are two values for y (namely +3 and −3) which satisfy the equation

and therefore the equation is not a function.

During their field trip the students had the following lunch options. For their main meal they had four options: Sandwich, Burger, Pizza and Chicken Tenders. For drinks their options was limited to two options Water and Gatorade. And for their side order they had two options: chips or fries. What is the probability than the next person will choose to have Chips for their meal?

Answers

Answer:

50%

Step-by-step explanation:

beacuse their are only 2 options which means 50% for each option. so when the student goes to pick there is a 50% chance their pick either one.

The answer is 50 for your question

PLEASE HELP I WILL MARK BRAINLEST 20 POINTS
what would be x in this ordered pair (3 -8)

Answers

Answer:

3

Step-by-step explanation:

X goes first

Answer:

X is the 3

Step-by-step explanation:

Ordered pairs always go (x,y) X will always be the number on the left.

please help this is the last question and it’s due soon

Answers

The answer is 2.5million
answer: x=-1 , y=3

x=-2y+5 —> x+2y=5 ——1)

-8x-3y=-1 ————2)

1) x 8,
8x+16y=40————3)

3)+2),
8x+16y-8x-3y=40-1
13y=39
y=39/13
y=3

substitute to 1),
x+(2x3)=5
x=5-6
x=-1

which of the following rational functions is graphed below. A.F(x)=1/x(x+2) B. F(x)=2x/x(x-2) C.F(x)=2x/x(x-2) D. F(x)=(x+1)/(x+2)(x+0)

Answers

Answer:

you don't have the graph

Step-by-step explanation:

help help help please im begging!! its trigonometry and its due tonight I'm so confused please help me out

Answers

Step-by-step explanation:

Its the bottom question sir

PLZ HELP!!
write an equation in pointslope form for the line through the given point through the given line (8, -3);m= -1/4

Answers

Answer:

y + 3 = - [tex]\frac{1}{4}[/tex](x - 8)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = - [tex]\frac{1}{4}[/tex] and (a, b ) = (8, - 3 ), then

y - (- 3) = - [tex]\frac{1}{4}[/tex](x - 8) , that is

y + 3 = - [tex]\frac{1}{4}[/tex](x - 8)

A plant is already 54 centimeters tall, and it will grow one centimeter every month. The plant's height, H (in centimeters), after M months is given by the following.
What is the plant's height after 13 months?

Answers

Answer:

67 cm

Step-by-step explanation:

We are given the initial height of the plant let's call it H.

H = 54 cm. This is the original height of the plant at M(months) = 0.

We are given that it grows at 1 cm/month. This is the rate of growth.

Rate = 1

Time (M) is given in Months.

So when M = 0, H = 54

Let's say M = 1, That is one month has passed. In this time the plant's height would have increased by 1 cm. So our plant's height would be H = 54+1 = 55 cm.

When Two months have passed our plant's height would be H = 54 + 2 = 56 cm , since every month our plant gains 1 cm in Height, we can make a fuction for this.

H = 1M + 54.

Now we just plug in 13 for M, to get 13 months.

H = 13 + 54

H = 67 cm

So our plant would be 67 cm in height after 13 months.

I need Help and I need it FAST!

Answers

Answer:

[tex] \huge a)\frac{1}{ {3}^{9}. {6}^{18} }[/tex]

Step-by-step explanation:

to understand thisyou need to know about:law of exponentPEMDAStips and formulas:[tex] {x}^{ - y} < = > \frac{1}{ {x}^{y} } [/tex][tex]( {x} ^{z} )^{y} < = > {x}^{y \times z} [/tex]let's solve:

[tex]( {3}^{3} . {6}^{6} {)}^{ - 3} [/tex]

[tex] \frac{1}{( {3}^{3}. {6}^{6} {)}^{3} } [/tex]

[tex] \frac{1}{ {3}^{3 \times 3}. {6}^{6 \times 3} } [/tex]

[tex] \frac{1}{ {3}^{9}. {6}^{18} }[/tex]

A bakery makes an equal number of 2 types of pies. This year the bakery made a total of 1,954 pies. How many of each type of pie did the bakery make?

Answers

Answer:

977

Step-by-step explanation:

The number of pies of each type is 977.

What is the application ratio and proportion?

A ratio is the relation between two numbers as a / b. A proportion is the equality of two ratios as a / b = c / d.

Ratio and proportion can be applied to solve Mathematical problems dealing with unit values of the quantities.

Given that,

The total number of pies is 1,954.

Number of types of pie = 2.

Each type of bakery can be found by taking the ratio of the number of pies and number of types of pie as follows,

1954/2

= 977

Hence, the number of each type of pie made by the bakery is 977.

To know more about ratio and proportion click on,

brainly.com/question/14279414

#SPJ2

Mai solved the equation below incorrectly. Identify Mai's error and then solve the equation correctly.
X-9) = {(x + 18)
3x - 3= kx +9
1
4
X-3=9
1
41
-x = 12
X = 48
What was Mai's error?

Answers

Answer: Please see explanation column for answer.

x= -36

Step-by-step explanation:

Step 1

from the attachment, Mai's solving is given as

1/3 (1/2x- 9) = 1/2 (x+18)

1/6x-3= 1/2x+9

1/4x-3=9

1/4x=12

x=48

Mai's error started when he subtracted wrongly 1/2 x from 1/6x which gave him 1/4 x instead of - 1/3 x.

Solving correctly, we have that

1/3(1/2x-9) = 1/2(x+18)

1/6x -3= 1/2x+ 9

taking like terms to like terms

1/6x-1/2x= 9+3

(1-3)/6x= 12

-2/6x= 12

-1/3x= 12

multiplying both sides by -3

-1/3x X -3 = 12 X -3

x= -36


Plz help I don’t understand.

Determine whether the sequence is arithmetic. If yes, identify the common difference and give the next three terms.

( -3, -12, -48, -192, ...)

Answers

Answer:

I do my love a ti love

Step-by-step explanation:

coroneta

Answer:

The sequence is a Gp

Each term can be gotten from multiplying the common difference (4)

Next three terms

(-192×4)= - 768

(-768×4)= - 3172

(-3172×4)= - 12688

What set of numbers could be the side lengths of a right triangle ?

Answers

Answer:

I think it's A 3,4,6 could be the length of the triangle

the graph of y=(1/3)x-1​

Answers

Answer:

Step-by-step explanation:

CAN YOU PLS HELP ME I BEG YOU I WILL GIVE YOU BRAINLET ND SIXTY POINTS pllls i beg you
math!!!

Answers

both are c!

hope this helps!!

18) Which of the following situations can be represented by a
proportional relationship?
A. David has $100 in his savings account and adds $5
per week.
B. The initial fee for a website is $60 and $44 per month
to maintain the website.
C. The cost to rent a beach house is a $200 deposit and
$400 per night.
D. Linda earned $8.00 per hour at her summer job.

Answers

D. Linda earned $8.00 per hour at her summer job.
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