Answer:
y = -5
General Formulas and Concepts:
Pre-Alg
Order of Operations: BPEMDASEquality PropertiesStep-by-step explanation:
Step 1: Define equation
-9 = 2(18) + 9y
Step 2: Solve for y
Multiply: -9 = 36 + 9ySubtract 36 on both sides: -45 = 9yDivide both sides by 9: -5 = yRewrite: y = -5Step 3: Check
Plug in y to verify it's a solution.
Substitute: -9 = 2(18) + 9(-5)Multiply: -9 = 36 - 45Subtract: -9 = -980m of cloth are required to make 36 shirts. How many cloth required to make 45 shirts?
Answer:
80m --------> 36 shirts
x m ----------> 45 shirts
Thus by the unitary method, the value of x will be;
36 × x = 80 × 45
x = 80 × 9 × 5 / 36
x = 80×5/4
x = 20 × 5
x = 100 shirts.
Answer:
100m
Step-by-step explanation:
80/36= takes 2 2/9 or 20/9 to make one shirt
20/9*45 shirts=100m
Alan has already baked 10 pies, and he can bake 2 pies with each additional cup of sugar
he buys. With 42 additional cups of sugar, how many total pies can Alan bake?
Answer:
42× 2= 84 pies
but if u need total, like including what he already had you add 10+84=94 pies
Step-by-step explanation:
so either 84 or 94 in total depending on what your question is asking you
plug x= 2 into
2x^4 - 3x^2 +5
Answer:
For example, try entering the equation 3x+2=14 into the text box. ... Here are some examples: y=2x^2+1, y=3x-1, x=5, x=y^2. To graph ... enter the expression you want to evaluate, want to
Step-by-step explanation:
Look at the image above:
Could someone please do this for me
Answer:
the shapes below are similar because,
Step-by-step explanation:
36 divided by 4 is 9.
9 is also the length on shape 2.
(9x2) + (4x2) = 36
36 is also the area of shape 2
Answer:
I think it is the area and perimeter are the same
Step-by-step explanation: Shape 1: If the perimeter is 26. one side is 9. 26-18= 8. You divide that to get the measure of the other side which is 4. 9*4=36. Shape 2: area is equal to 36, one side is for so the other side has to be 9. So the perimeter of shape 2 is 26 too.
evaluate the expression when n=5.
[tex] {n}^{2} + 9n + 4[/tex]
Answer:
74
Step-by-step explanation:
n=5 so then
1. plug into the equation (5)^2 + 9 (5) + 4
2. PEMDAS
3. Start with the exponents (5)^2 = 25
4. Then Multiplication 9 (5) = 45
5. Addition, add everything together 25 + 45 + 4 = 74
6. :)
Answer:
74
Step-by-step explanation:
5² + 9(5) + 4 = 25 + 45 + 4 = 74
Help please!!!!!! And explain ur answer.. I will mark as BRAINLIEST.
Answer:
sister it's a picture study Mere question ka pahle aap jawab dijiye aur aapka Jo answer hai vah galat hai samjhe
What is the answer to this pre-algebra equation 7x+10=3x+120
Answer:
=[tex]\frac{55}{2}[/tex]
At a grand-opening sale, 20% of the first 500 customers won a prize. How many of the first 500 customers won a prize ?
Answer:
100
Step-by-step explanation:
I will give Brainliest if you answer this math question:
Marta’s math textbook weighs Four-fifths of a pound less than 4 times the weight of the book she is reading for her language arts class. If the weight of the math textbook is 2 and one-fifth pounds, which shows the correct equation and value of x, the weight of Marta’s book for language arts?
4 x + four-fifths = 2 and one-fifth; x = StartFraction 7 over 20 EndFraction of a pound
4 x minus four-fifths = 2 and one-fifth; x = three-fourths of a pound
4 x + four-fifths = 2 and one-fifth; x = three-fourths of a pound
4 x minus four-fifths = 2 and one-fifth; x = StartFraction 7 over 20 EndFraction of a pound
Answer:
The correct answer is B. Hope this helps. Can I have brainliest if I am right please?
Step-by-step explanation:
Answer:
Answer is B baguettes.
Step-by-step explanation:
Which graph below represents a function?
Draw a vertical line and notice if the vertical line intercepts more than 2 points in the graph.
A, if we draw a vertical line, it'll just intercept only one point of the graph. So A is function.
A is the only function here. If we draw a vertical line for other graphs, it'll intercept 2 points.
Find the lengths of each side. Label with numbers. WILL GIVE BRAINLIEST
Answer:
2 x + 6 . 8 = 8 x + I . 4
8x _2x = 6.8 - 1.4
6x = 5.4
X= 0.9
2x+ 6-8= 2×0.9 + 6.8 =8.6
Judy earns $6 for each hour of yard work. Write an equation that shows the relationship between the time spent x and the amount earned y. Write your answer as an equation with y first, followed by an equals sign.
Answer:
Y times X= 42
6 times 7=42
Rlly important mark me brainliest plz so close to next rank
Which is the definition of a line segment
Answer:
In geometry, a line segment is a part of a line that is bounded by two distinct end points, and contains every point on the line between its endpoints. A closed line segment includes both endpoints, while an open line segment excludes both endpoints; a half-open line segment includes exactly one of the endpoints.
Step-by-step explanation:
Line segment is a line with two end points .
What is the line ?" Line is defined as the collection of points in one dimensional plane which has only one dimension length which extends to infinity."
According to the question,
Definition of line segment :
In geometry, a line segment is a part of a line that is bounded by two distinct end points, and contains every point on the line between its endpoints. A closed line segment includes both endpoints, while an open line segment excludes both endpoints; a half-open line segment includes exactly one of the endpoints.
Hence, line segment is a line with two end points .
Learn more about line segment here
https://brainly.com/question/25727583
#SPJ2
1.- (A^2-6a+4)/(2a)
2.- (2b^2+b-8)/(2b)
Answer:
ok
Step-by-step explanation:
Is the domain of the function represented by the data shown in the graph discrete or continuous?
9514 1404 393
Answer:
continuousdistance traveled by walkingStep-by-step explanation:
You can draw the graph without lifting your pencil, so it is "continuous."
Rows, drinks, and books are all things that are counted. That is, their number takes on discrete values.
Time, on the other hand, is continuous--able to take on any value.
The graph best models distance as a function of time.
The slope of the function on the left is multiplied by p, and q is added to the y-intercept to arrive at the function on the right. Which of the following are the values for p and q?
A) p= 1/4 and q= 3
B) p= 1/4 and q= 5
C) p= 1/4 and q= 4
D) p= 4 and q= 4
Answer:
the answer is C
Step-by-step explanation:
plato
WHO LIKES LARRAY
Cause I do
HURRY!! A climber is on a hike. After 2 hours he is at an altitude of 400 feet. After 6 hours he is at an altitude of 700 feet. What is the rate of change.
Answer:
175ft an hour
Step-by-step explanation: lets say t=hours
so 2t=400ft and 6t=700ft
the difference between hours is 4 because 6-4=2
so we would multiply 4 by ?
to get the missing # you would have to multiple 4 by numbers between 170 and 190 because anything under 170 is no where near 175 and anything above 190 is way off 175. Answer is 175ft per hour
Answer:
total distance =700+400ft
time =2+8 =10hour
rate =distance/time=1100/10=110 ft/hour
since he stops two times
rate of change =110/2=75ft/hour
correct answers only pls.
A hiker begins at sea level and descends 25 feet every minute. How long will it take to get to an elevation of -750 feet?
Answer:
it would take about 7 1/2 minutes.
Step-by-step explanation:
please give brainliest
Answer:
30 minutes
Step-by-step explanation:
The hiker starts at sea level or 0 feet. He descends 25 feet every minute. This can be written in an equation as so, 0 acting as the starting point, f being feet, and m being minutes:
f = 0 - 25m
This simplifies to:
f = - 25m
We can substitute f in for -750
-750 = - 25m
Now, we divide by - 25 by both sides of the equation
-750 ÷ - 25 = 750 ÷ 25 = 30
30 = m
It would take 30 minutes for the hiker to get to - 750 feet in elevation.
I Hope That This Helps! :)
What is the least common multiple of 6 and 8?
Answer:
2
Step-by-step explanation:
Which of the following is accurate about The Louisiana purchase in 1803 choose 3 that apply ///help me plz
A, B, D
Step-by-step explanation:
C is false because the democratic-republicans believed in a strict interpretation of the constitution and now since there are only 3 answers left those 3 are you answers. (sorry I'm late I hope it helped)
Answer:
its A B and D I just took it
Step-by-step explanation:
3. If x2 + 4 = 29, then x2 - 4 = ?
A. 5
B. 121
C.
21
D. 25
E. 33
Answer:
c
Step-by-step explanation:
because x²+4=29 you can solve the equation for x²x²+4=29x²=25substitute the value of x² into the expression x²-4 to calculate the value the expression is equal to x²-4=25-4=21c.21 is your answer hope this worksAn area of land has 512 acres. Each acre has 54 blades of
grass. How many blades of grass does the entire land have?
Leave your answer in the form ab.
blades of grass
Answer:
27,648 blades of grass
Step-by-step explanation:
512 * 54 = 27,648
can someone please answer the 2 questions in the photo, please let me know if you can or cannot see them.
Answer:
I have the same one! this isnt an answer but like i need help too-
Step-by-step explanation:
I would love your guys help!! ASAP!!
1. What is the constant proportionality?
2. What is the meaning of the constant of proportionality in the context of the situation?
3. Right an equation that relates the number of tablespoons of vinegar (x) to the tablespoons of oil (y) to make the salad dressing according to the recipe.
Will award brainlest and give 37 points!!
9514 1404 393
Answer:
3/2it is the ratio of oil to vinegar in the dressing y = 3/2xStep-by-step explanation:
1. The table can be filled in like this:
(x, y)(0, 0)(2, 3)(4, 6)(6, 9)The constant of proportionality is the ratio of y to x:
k = 3/2
__
2. The meaning of the constant of proportionality is just what it is defined to mean: the ratio of oil to vinegar in the dressing.
__
3. The equation is y=kx, where k is the value in part 1:
y = (3/2)x
Which of the following is not a function
B is not right
Answer:
The first one
Step-by-step explanation:
They have 2 outputs for the same input
A 25 kg rock , is raised to the top of a hill 10 m high. What is the PE of the rock ?
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
[tex]Potential \: \: Energy =(mass) \times (gravity \: acceleration) \times (height) \\ [/tex]
_________________________________
If gravity acceleration is 10 :
[tex]PE = 25 \times 10 \times 10[/tex]
[tex]PE = 2500[/tex]
_________________________________
If gravity acceleration is 9.8 :
[tex]PE = 25 \times 9.8 \times 10[/tex]
[tex]PE = 25 \times 98[/tex]
[tex]PE = 2450[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Divide (-3x^2 - 9x) ÷ (x + 3)
please explain/show work! <33
Step-by-step explanation:
[tex]( - 3 {x}^{2} - 9x) \div (x + 3) [/tex]
This is the original equation so you will open the brackets.
[tex] - 3 {x}^{2} - 9x \div x + 3[/tex]
The x will cross the division sign making it times x.
[tex]3 {x}^{2} - 9x \times x = 3[/tex]
So you will proceed to multiply the 9x by x making it;
[tex]3 {x}^{2} - 9 {x}^{2} = 3 [/tex]
So you will subtract 9x² from 3x² which won't be possible so it will be negative.
[tex] - 6 {x}^{2} = 3 [/tex]
Then you will square root both sides making it;
[tex] - \sqrt{6 {x}^{2} } = \sqrt{3} [/tex]
So the ² will cancel the √ leaving
-6x=√3
-6x=1.73(Divide both sides by -6)
x=0.288
That's the final answer.
help
please
-8а - 5 = 3 - 6а
Answer:
-8a-5=3-6a
-8a+6a=3+5
-2a=8
a=8/-2
therefore,a=-4 answer...
Answer:
a = 4
Step-by-step explanation:
Firstly, make all subtraction signs, addition signs which should look like this
-8a + -5 = 3 + -6a
Add 5 to both, -5 and 3.
-8a = 8 + -6a
Add 8a to both -8a and -6a
2a = 8
Divide both by 2
a = 4
