What value of x makes the equation
modeled below true?
A X = 1
B X 3
CX = 10
DX = 2
Answers
Answer:
D
Step-by-step explanation:
Since the weighing scale is balanced,
weight of the right side= weight on the left side
7(1)= 3x +1
7= 3x +1
Minus 1 on both sides:
3x= 7 -1
3x= 6
Divide both sides by 3:
x= 6 ÷3
x= 2
Thus, option D is correct.
Related Questions
A marathon is 26.2 miles long. Jarrod is running a marathon and has completed 17.75 miles. How
many more miles to the finish line?
Answers
Answer:
Jarron has 8.45 more miles to get to the finish line.
Step-by-step explanation:
All we have to do is subtract the total number of miles by the number of miles Jarron has completed.
So: 26.20 - 17.75 = 8.45
26.2 - 17.75 = 8.45
All you need is subtraction because you are finding what is left.
You can find 8.45 by using a calculator or solving in your head, it would just take longer.
Write a function in any form that would match the graph shown below
f(x)=
Answers
Answer:
I think it would be
f(x) = -x² - x + 4
Hope this helps!
solve the system y=6x=5 y=3x-23
Answers
Answer:
False θ·θ.................
Answer:
x = -28/3
y = -51
Step-by-step explanation:
Let's solve for X first
6x + 5 = 3x - 23
-3x -5 (like terms)
3x = -28
/3 /3 (divide by 3)
x = -28/3
y = 6(-28/3) + 5
y = -51
(I'm having doubts with my answers, so can you check my work? Comment incorrections and I can edit)
Hope this helps! Please comment :)
Bruno cambió S/200 en tres billetes y ocho monedas. ¿De qué denominación fueron los billetes y monedas?
Answers
Answer:
Un billete de 50
Un billete de 100
Un billete de 10
8 de monedas de 5
Explicación paso a paso:
100 +50+10+8(5)=200
Step-by-step explanation:
HELP ME DUE IN 30mins !!!!
Find the measure of each angle indicated.
Answers
Answer:
1.50° 2.65°
Step-by-step explanation:
let x be the unknown angle
1. 32+98+x=180(sum of angles in a ∆ equal to 180°)
130+x=180
x=180-130
x=50°
2. 25+90+x=180
115+x=180
x=180-115
x=65°
An arts academy requires there to be 5 teachers for every 100 students and 6 tutors for every 48 students. How many students does the academy have per teacher? Per tutor? How many tutors does the academy need if it has 72 students?The academy has enter your response here students per teacher.
Answers
20 students per teacher.
8 students per tutor.
9 tutors needed for 72 students.
10.
Write the equation of a line that is perpendicular to the given line and that passes through the given point.
–x + 5y = 14; (–5, –2)
A. y = 5^x – 27
B. y = -1/5x – 27
C. y = -1/5x – 15
D. y = -5^x – 27
Answers
Answer:
D. y = -5^x – 27
Step-by-step explanation:
Find the negative reciprocal of the slope of the original line and use the point-slope formula y − y 1 = m ( x − x 1 ) to find the line perpendicular to − x + 5 y = 14 .
y = − 5 x − 27 PERPENDICULAAR
...................................................................................................................................................
Find the slope of the original line and use the point-slope formula y − y 1 = m ( x − x 1 ) to find the line parallel to − x + 5 y = 14 .
y = 1 /5 x − 1 PARALLEL
A 20-foot string of lights will be attached to the top of a 12-foot pole for a holiday display. How far from the base of the pole should the end of the string of lights be anchored?
Answers
Answer:
8 feet away
Step-by-step explanation:
Because if there is 20 feet of lights, and the pole is 12 feet you subtract 20-12 which gets you 8.
B=5 b+(bx2x3)-5 plz help
Answers
Answer:
Step-by-step explanation:
12
What is the slope of this line?
Answers
Answer:
1, -6
Step-by-step explanation:
Subtract the units on the grid from one point to the other to get the slope. You go over 1 and down 6 to get to the other point.
Which of the following equations have infinitely many solutions?
Choose all answers that apply:
742 - 37 = 742 – 37
372 - 37 = 372 – 37
2 - 37 = 2- 37
732 - 37 = 732 - 37
Answers
Answer: Are there suppose to be Xs? All of them are equal to each other.
Step-by-step explanation:
giving brainliest pls helpp
Answers
Answer:
Maybe negative or undefined?
Step-by-step explanation:
Benny the Barber (see Question 1) is considering the addition of a second chair. Customers would be selected for a haircut on a FCFS basis from those waiting. Benny has assumed that both barbers would take an average of 20 minutes to give a haircut, and that business would remain unchanged with customers arriving at a rate of two per hour. Find the following information to help Benny decide if a second chair should be added: Part (a): The average number of customers waiting. Part (b): The average time a customer waits. Part (c): The average time a customer is in the shop.
Answers
According to the information presented, Benny should decide not to add a second chair because the average number of clients waiting is 1 (very low), the average waiting time for a client is 10 minutes (very low), and the average time a customer is in the store is 20 minutes (very low).
According to the information, an average of 2 clients arrive at the hairdresser for every hour (60 min) and each cut takes a maximum of 20 minutes. Therefore, the hairdresser would have an average of 40 minutes busy and 20 minutes free for each hour.
Additionally, customers who must wait do not have to spend a long time waiting in the store because the maximum waiting time is 10 minutes (in the case that both customers arrive at the same time).
Below is a graph where the information of both cases is compared (with an additional chair and without an additional chair) and it is inferred that an additional chair is not necessary because the number of clients waiting and the waiting time is not high.
Learn more in: https://brainly.com/question/25400126
Write the equation of the graphed line in slope-intercept form.
The slope is a rise of 1 and over three and the y intercept is 3
Please help?
Answers
Answer:
yes the slope is 1 up 3left or 1 down 3 right
but you wrote it wrong y = 1÷3 + 3
because y intercept is 3
Evaluate the determinant for the following matrix
Answers
(-5 * 4 ) - (1 * 1)
-20 - 1
-21
letter a
Step by step Explanation
-5×4-1×1
-20-1
-21
hope this help you!
can somebody please help me with my language arts please?
Answers
Answer: alright
Step-by-step explanation:
PLEASE HELP
(delta math)
Triangle TUV is formed by connecting the midpoints of the side of triangle QRS.
The lengths of the sides of triangle TUV are shown. What is the length of RS?
Figures not necessarily drawn to scale.
Answers
whats the answer i need help with the following equations
Answers
It’s going up by fiveAnswer:
Step-by-step explanation:
I need help please!!!!!!!!!
Answers
Answer:
2 x -4 = -8
Step-by-step explanation:
1.2x4=8
2.If there is one negative and one positive when multiplying the answer will be negative
Write an equation in slope-intercept form for the line with slope -1/2 and y-intercept -7
Answers
Answer:
well slope intercept form is
y=mx+b
now m is slope and b is y intercept.
so just plug it in
y= -1/2x - 7
Answer:
the slope intercept form is
y=mx+b
y= -1/2x - 7
Step-by-step explanation:
Who has the most money based on the table below?
Answers
The increasing annual cost (including tuition, room, board, books, and fees) to attend college has been widely discussed (Time.com). The following random samples show the annual cost of attending private and public colleges. Data are in thousands of dollars.
Private Colleges
53.8 42.2 44.0 34.3 44.0
31.6 45.8 38.8 50.5 42.0
Public Colleges
20.3 22.0 28.2 15.6 24.1 28.5
22.8 25.8 18.5 25.6 14.4 21.8
(a) Compute the sample mean (in thousand dollars) and sample standard deviation (in thousand dollars) for private colleges. (Round the standard deviation to two decimal places.)
(b) Compute the sample mean (in thousand dollars) and sample standard deviation (in thousand dollars) for public colleges. (Round the standard deviation to two decimal places.)
(c) What is the point estimate (in thousand dollars) of the difference between the two population means? (Use Private − Public.)
We estimate that the mean annual cost to attend private colleges is $ more than the mean annual cost to attend public college
(d) Develop a 95% confidence interval (in thousand dollars) of the difference between the mean annual cost of attending private and public colleges. (Use Private − Public. Round your answers to one decimal place.)
Answers
33y + 16; y = 3
PLSSS HELP MEE
Answers
Answer:
115
Step-by-step explanation:
y = 3
33y + 16
So since we know what y equals, we replace y in the equation to find our answer
33(3) + 16
33 times 3
99 + 16
115
Hope this helped! Leave a comment if it did, and try asking your teacher if it's correct :)
i need help solving these problems!
Answers
what is the answer for this
Answers
Answer:
w=6.3
Step-by-step explanation:
Im too lazy to put the steps U^U
Brainliest?
Which expression is equivalent to (4√a^2b)(3√b)?
A) 2ab√3
B) 3a^2b^2
C) 12ab
D) 12ab^2
Answers
Answer:
C) 12ab
Step-by-step explanation:
5.
Which equation is represented by the graph?
y = 2x2 + 1
y = 2x2 − 1
y = 1/2x^2 + 1
y = x2 − 1
Answers
Answer:
y = x^2 − 1
Step-by-step explanation:
By the look of each graph, it looks like y = x2 − 1 is the answer.
A line has a slope of 1/9 and a y intercept of 2. What is its equation in slope intercept form?
Answers
Whats 8*8 I'm in first grade and they give me this
Answers
Divide and state the remainder
(I need help solving)
(a^3 + 6a^2 - 11a -38) ÷ (a+7)
Answers
Answer:
remainder=-10
Step-by-step explanation:
a^3+6a^2-11a-38=a^3+7a^2-a^2-7a-4a-28-10=a^2(a+7)-a(a+7)-4(a+7)-10=(a+7)*(a^2-a-4)-10
or you can find remainder replacing a with -7:
-7^3+6*-7^2+7*11-38= -10
Answer:
- 10Step-by-step explanation:
(a³ + 6a² - 11a -38) ÷ (a+7) = a² - a - 4 rem (-10)
a³ + 7a²
- a² - 11a
- a² - 7a
- 4a - 38
- 4a - 28
-10
