Given f(x)=3x+9, find x when f(x)=21
Answer:
x=4
Step-by-step explanation:
First do(just do the opposite. It is +9 you do -9) 21-9=12
Second do 12÷3=4 (opposite of multiple is divided)
x=4
What is the slope of this graph?
A. 4
B. −14
C. −4
D. 14
Answer:
14 is the correct answer
Step-by-step explanation:
Answer:
A.4
Step-by-step explanation:
start at the y-intercept and work down
Solve 4(2x - 9) = 3x + 4
Answer:
x = 8
Step-by-step explanation:
First, you distribute
4(2x)+4(-9)=3x+4
8x - 36 = 3x + 4
Subtract 3x from both sides
(8x - 3x) - 36 = (3x - 3x) + 4
5x - 36 = 4
Then add 36 to both sides
5x (-36 + 36) = (4 + 36)
5x = 40
Then divide 5 from both sides
x = 8
------------------------
Hopefully this is correct, sorry if it isn't
( Will give Brainliest Please Helpp)
Answer:
4/9 sq yard
Step-by-step explanation:
Answer:
the answer is 6/7
Step-by-step explanation:
Select the correct answer.
Caroline is planting flowers in her garden. She plants her first 7 flowers in 4 minutes. After 12 minutes, she has planted 21 different flowers.
Which equation represents this direct variation?
The answer is B) y= 7/4x
This is because when you graph it you would go up 7 and over 4- you just had to find the rise over run. I also just made sure it was correct on edmentum!
Caroline is planting her first 7 flowers in 4 minutes and then past 12 minutes, she plants 21 different flowers. That suggests that she is planting the flowers following the given equation y=(7/4)x.
What is dependant variable?The dependent variable is defined as the variable whose evaluation of the independent variable determines the quality of the dependent variable. That is, it is consistently claimed that the word variable's estimate depends on the mathematical condition's free variable.
How to solve it?Let Caroline plant y flowers in x minutes.
By using the unitary method we can observe that
4 minutes → 7 flowers
⇒ 1 minute → 7/4 flowers
⇒ x minutes → (7/4)x flowers
Hence, Caroline is planting y=(7/4)x flowers in x minutes. And y=(7/4)x this equation represents the variation perfectly.
NOTE: We took the number of flowers planted as y because it is a dependent variable. The number of flowers depends on the time elapsed.
Learn more about the unitary method here-
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The sequence below represents Marisa’s fine at the library for each day that she has an overdue book:
$0.50, $0.65, $0.80, $0.95, $1.10, ...
Which equation represents Marisa’s library fine as a function of a book that is n days overdue?
Answer:
x + $0.15
Explanation:
If you see well $0.15 + $0.50 = $0.65
and then $0.65 + $0.15 = $0.80
Answer:
f(n) = 0.15n + 0.35
Step-by-step explanation:
Find the equation of the line.
Use exact numbers.
Y= X+
HELP ASAP
Step-by-step explanation:
using the graph, we can see that the line goes through points
(0, 5) and (3, -1)
this is all we need
[tex]y = mx + b\\ m = \frac{y_2-y_1}{x_2-x_1} = \frac{5-(-1)}{0-3} = -2[/tex]
[tex]y = mx + b\\5 = -2(0) + b\\b = 5\\y = -2x + 5[/tex]
Its just the the page thats fully shown.
Note: Thank you so much for helping me out! xoxo
It’s cost Zachary$7.00 to send 140 text messages.how many text messages did he send if he spent $0.85?
4)
The temperature dropped 3 degrees every hour for 3 hours. Write an expression and write an
integer to represent the total temperature change.
Answer:
I think the integer that represents the change in temperature is -15.
HELPP MEEE PLEASE SO YOU CAN HELP ME GET MY ALBUMS BACK AND POSTERS AND EVERYTHING
Answer:
[tex]\frac{xy^4}{5}[/tex]
Step-by-step explanation:
Step 1- The x variables cross each other out.
Step 2- y^5-y= y^4
Step 3- 15÷3= 5
Hope this helps! :)
brynne simplifies an equation and gets 2=3. what does this tell you about the equation
Answer:
That it has no solution. If you could have gotten 2=2 or 3=3 it would have a solution
Step-by-step explanation:
Answer:
The equation is not equal. Therefore, it is not an equation. However, things will be different if the equation was based on a coordinate plane. If it was based on a coordinate, the equation could have been: y=x-1
Step-by-step explanation:
A bag contains:
4 blue marbles
2 green marbles
1 red marble
A marble is chosen at random from the bag and not replaced. Then, a second marble is chosen from the bag. What is the probability that the first marble was red and the second marble was green?
A) 1/7
B) 1/21
C) 2/49
D) 2/6
Answer:
it is ether B or D cuz
Step-by-step explanation:
4+2+1=7 marbles
(4/1)+(2/1)+(1/1)=7/21
divide 21 by 7 that would = 3
A bicyclist ride 1/6 miles in 1/84 hours. Write this into a unit rate.
answer:
15
Step-by-step explanation:
1/6 ÷ 1/90
(1/6)(90/1)
so in conculsion it's gonna be 15!
please tell me if im right or not.
In what quadrant is the point (3, -4) located?
Answer:
quadrant IV
Step-by-step explanation:
In the image, these are where each quadrant is and labelled. If you plot ( 3,-4) on the grid, it will end up in quadrant IV.
I need help w/ math Fractions
Answer:
First:
Convert any mixed numbers to fractions.
Then your initial equation becomes:
−3/8÷−11/4
Applying the fractions formula for division,
=−3×4 / 8×−11
=−12/88
Simplifying -12/-88, the answer is
=3/22
14 minus the product of a number and 15
Answer:
14 - (y x 15)
Step-by-step explanation:
This is the number because:
1) 14 minus means 14 subtracted from the product of a number and 15
2) The product of a number and 15 is a variable multiplied with 15
3) Finally, if we put these together, we get 14 - (y x 15)
Hope this helps!
a city has 8984 recycle bins the city gives half of the recycle bins to its citizens the rest of the recycle bins are divided into 25 groups for city parks .How many recycle bins are left over?
Answer:
7867867867878678
Step-by-step explanation:
uyityuityuituityuityuityui
You rent bowling shoes for $4, and it costs $2.50 to bowl
each game. Write a linear equation to model this situation.
Answer:
y=2.5x+4
Step-by-step explanation:
that your answer
rate and hit that thank button
Un bloque de 2kg es trasladado a lo largo de la superficie lisa por accion de una fuerza f=40N ¿cual es el trabajo realisado por la fuerza "f"y por la fuersa de gravedad para un recorrido de 6m?
Explicación paso a paso:
Workdone = Fuerza * distancia movida en la dirección de la fuerza
Dado
Fuerza f = 40N
Distancia = 6 m
El trabajo realizado por la fuerza F es:
Trabajo hecho = 40 * 6
Trabajo terminado = 240 Nm
El trabajo realizado por la fuerza de la gravedad es el trabajo realizado por el cuerpo de 2 kg:
W = mg
W = 2 * 10
W = 20N
Trabajo realizado = 20 * 6
Trabajo terminado = 120 Nm
An arts academy requires there to be 3 teachers for every 63 students and 4 tutors for every 36 students.How many students does the academy have per teacher ? per tutor ? how many tutors does the academy need if it has 63 students ?
the telephone company offers two billing plans for local calls. plan 1 charges 37$ per month for unlimited calls. plan 2 charges 17$ per month for plus 0.05$ per call. Use an inequality to find the number of monthly calls for which plan 1 is more economical than number 2
Answer:72
Step-by-step explanation:
Two number cubes are tossed.
What is P(4, 6)?
5+ (-8)n = 29.
What are the steps ? What does n equal ?
ASAP please and thank you (10 points)
Answer
n = -3
Step-by-step explanation:
5 + (-8)n = 29
Subtract 5 from both sides
-8n = 24
Divide -8 from both sides
n = -3
Hope this helps and let me know if you need me to go into further detail :)
Answer:
n = -3 :)
Step-by-step explanation:
5 + (-8)n = 29
-5 -5
-------------------
-8n=24
---- ----
-8 -8
n = -3
math isnt my best subject-
What is the zero of g?
The function g in the graph is a linear function, and the zero of the function g is -6
How to determine the zero of g?The zero of the function g is the point where the graph of function g crosses the x-axis
From the graph, we have the following point
(x,y) = (-6,0)
Hence, the zero of the function g is -6
Read more about linear functions at:
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Paulo has 39 patches from states he and his relatives have visited he wants to pin the onto a board and arrange them equally in 3 rows how many patches will be in each row
Given:
Total number of patches = 39
Total number of rows = 3
To find:
The number of patches in each row.
Solution:
We have,
Total number of patches = 39
Total number of rows = 3
We need to divide the total number of patches by total number of rows to find the number of patches in each row.
[tex]\text{Number of patches in each row}=\dfrac{39}{3}[/tex]
[tex]\text{Number of patches in each row}=13[/tex]
Therefore, the number of patches in each row is 13.
A bike rental company charges a $5 service fee and $1 per hour. If this situation is represented as a function, what would be the slope?
Select one:
6
0
1
5
Answer:
The slope would be 1.
Step-by-step explanation:
The slope would be one becuase the equation would be y=1x+5.
Answer:
the equation would be y=x+5
so the slope is 1
Step-by-step explanation:
Choose all sets that contain the number 5.
Natural numbers
Whole numbers
Integers
Rational numbers
Irrational numbers
Real numbers
DONE
Answer:
NaturalWholeIntegersRationalRealI'm pretty sure all of these have 5, so only one doesn't fit in that category...
Answer:
Choose all sets that contain the number 5.
✅ Natural numbers
✅ Whole numbers
✅ Integers
✅ Rational numbers
❌ Irrational numbers
✅ Real numbers
Step-by-step explanation:
Judt did it on edg
nwjskjnsfnwkfdnmfdn gsdkjmcfnm vnndfjsngdrmdtnrnmdcvkjdfnvf
Answer:
nwjskjnsfnwkfdnmfdn gsdkjmcfnm vnndfjsngdrmdtnrnmdcvkjdfnvf
Step-by-step explanation:
Have a great day
Answer:
gshspisgsgushd surrfvereeers
Step-by-step explanation: