Answer:
x=2
Step-by-step explanation:
given 9x-12=3x we want to solve for x
To do so we need to isolate the variable using inverse operations
to get rid of the 9x we subtract each side by 9x
9x - 9x cancels out
3x - 9x =-6x
now we have
-12=-6x
now we want to get rid of the -6
to do so we divide each side by -6
-6x/-6=x
-12/-6=2
we're left with x=2
Answer:
9x=3x+12
9x-3x=12
9x-3x=12
6x=12
x=2
solution
x=2
If John's present age is 3x years and Jane is twice his age, what will be the
sum of their ages in 5 years' time? *
Answer:
i think its 30x
Step-by-step explanation:
3x2=6
6x5=30
Answer:
9x+10
Step-by-step explanation:
JOHN=3X JANE=6X THEIR COMBINED AGE IN 5 YEARS WILL BE 3X+5+6X+5 OT 9X+10
6.
A plane intersects a cylinder. Which of the following cannot be formed by this intersection?
F Triangle
G Line
H Rectangle
J Circle
Answer:
g
Step-by-step explanation:
i don't know if this right just trying to help
The line cannot be formed by the intersection with plane and a cylinder.
What is intersection of cylinder and a plane?
A cylindric section is the intersection of a plane with a right circular cylinder.
Why line cannot be formed by the intersection with plane and a cylinder?
The intersection will be parallel lines if the plane is parallel to the cylinder's axis, it is impossible.
Because there are no intersecting lines on a cylinder, the intersection of a plane and a cylinder cannot create intersecting lines.
Hence, the option [tex]G[/tex] is correct answer.
Learn more about intersection of cylinder and a plane here,
https://brainly.com/question/2516079
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A Florida citrus grower estimates that if 150 orange trees are planted, each tree will produce 500 oranges. For each additional tree planted on the same acreage, the number of oranges each tree produces will decrease by 10 oranges. Find the maximum number of oranges the citrus grower can produce. How many trees will the citrus grower need to plant?
Answer:
The answer is below
Step-by-step explanation:
The question would not give a valid answer, the question should be in the form:
A Florida citrus grower estimates that if 30 orange trees are planted, each tree will produce 500 oranges. For each additional tree planted on the same acreage, the number of oranges each tree produces will decrease by 10 oranges. Find the maximum number of oranges the citrus grower can produce. How many trees will the citrus grower need to plant?
Solution:
Let x represent the number of orange trees above 30 to be planted on the acreage and let y be the number of oranges. Since for every additional tree there is a decrease of 10 oranges, hence:
y = (30 + x)(500 - 10x)
y = 15000 - 300x + 500x - 10x²
y = 15000 + 200x - 10x²
The number of oranges is maximum at y' = 0. Hence:
y' = 200 - 20x
200 - 20x = 0
20x = 200
x = 10
Second derivative test = y" = -20 (so this is maximal)
Therefore the number of trees needed = 30 + 10 = 40 trees
Maximum number of oranges = (30 + 10)(500 - 10(10)) = 40(400) = 16000 oranges
Answer:
Step-by-step explanation: this is 150 multiplied by 500
42 donuts in 6 boxes = donuts per box
Answer:
42÷6 derrrrrrrrrrrr lol
b. How many hours will Max have to work if he wants to earn $186?
Max must work
hours if he wants to earn $186.
Answer:
Step-by-step explanation:
How are we supposed to know bcuz we dont know how much he is getting an hour so i cant help u sorry you gave us barely any info
Identify pair of adjacent angles and vertically opposite angles from the
following figures.
Answer:
adjacent angle pair is ∠AOD and ∠DOB (could be any two that are next to each other)
vertically opposite angles are ∠AOD and ∠COB (also could be ∠AOC and ∠DOB
Step-by-step explanation:
My sister is 11 years old. My brother say that his age minus thirteen is equal to my sister age . How old is my brother
Answer:
24
Step-by-step explanation:
13+11=24
Please help I'll mark brainliest ASAP (NO LINKS)
Answer:
see belowStep-by-step explanation:
4)for question 1 there is only a constant terms 2
hence, our answer choice is
a)25)Whole Numbers are simply the numbers 0, 1, 2, 3, 4, 5, ... (and so on)
hence our answer choices are
a)31b)06) degree of a expression means the exponent of the expression
since there's no number 3 as exponent
our answer choice is
False7) The Standard Form for writing down a polynomial is to put the terms with the highest degree first
hence our answer choice is
Dto simplify the expression
remember, law of exponent i.e [tex]\displaystyle x^m\times x^n=x^{m+n}[/tex]
[tex]\displaystyle (5x ^{2} y)(3x ^{3} y ^{4} )[/tex]
simplify:
[tex]\displaystyle 15x ^{2 + 3} y ^{4 + 1} [/tex]
[tex]\displaystyle 15x ^{5} y ^{5} [/tex]
hence, our answer choice is
[tex]C)15x ^{5} y ^{5} [/tex]Step-by-step explanation:
4.constant term=2
2.whole no : 31&0
5.false
7.15x^5y^5
6.standard form =2x^5-8x⁴y³+3x²y
What is the missing length?
7 cm
р
area
56 cm?
HURRY
Answer:
8
Step-by-step explanation:
Survey: On free time 90 students like watching TV, 20 like watching TV but not reading, 80 like reading, 40 do not like watching TV. Question: Percent of total student like both watching televisan and reading
Answer:
50 %
Step-by-step explanation:
From the diagram attached,
Percentage of total students that like watching television = [(WnR)/μ]×100......... Equation 1
The number of students that like watching television and reading (WnR) = 70
The total number of students (μ) = 40+20+70+10
The total number of students (μ) = 140
Substitute these values into equation 1
Percentage of total students that like watching television = (70/140)×100
Percentage of total students that like watching television = 1/2(100)
Percentage of total students that like watching television = 50 %
Write the line in slope-intercept form given the slope of 1/3, through the point (-6,9)
Answer:
The answer would be :
Y= 1/3X + 11
Sorry if the pictures a little weird looking, I was in a rush .
Simplify
sec x - tan x sin x
Answer:
cos x
Step-by-step explanation:
sec x - tan x sin x
[tex]\frac{1}{cosx} - \frac{sinx}{cosx} * sinx\\\\\frac{1}{cosx} - \frac{sin^{2}x}{cosx}\\\\\frac{1-sin^{2}x}{cosx} \\\\\frac{cos^{2}x }{cosx} \\\\cosx[/tex]
find the value of given expression
[tex] \sqrt{1254 \times 1254} [/tex]
Answer:
√{1254×1254}=√1254²=±1254 is your answer
Step-by-step explanation:
1) Simplify 1254 × 1254 to 1572516.
[tex] \sqrt{1572516} [/tex]
2) Since 1254 × 1254 = 1572516, the square root of 1572516 is 1254.
[tex]1254[/tex]
Therefor, the answer is 1254.
May someone please help me out with this problem? May you also explain it?
Answer:
Step-by-step explanation:
Given function is,
f(x) = [tex]\sqrt{x}[/tex]
If the given function is vertically stretched by a scale factor of [tex]\frac{3}{2}[/tex] Or 1.5,
Transformed function will be,
h(x) = [tex]\frac{3}{2}[f(x)][/tex]
h(x) = [tex]\frac{3}{2}(\sqrt{x})[/tex]
Further function 'h' is shifted 1 units upwards,
g(x) = h(x) + 1
g(x) = [tex]\frac{3}{2}(\sqrt{x} )+1[/tex]
Domain of the function → x ≥ 0 Or [0, ∞)
Range of the function → y ≥ 1 Or [1, ∞)
Transformations done → Parent function f(x) is vertically stretched by a scale factor of [tex]\frac{3}{2}[/tex] then shifted 1 unit upward.
simplify the expression
-7p + -2 + -2 + -10 + -9
Answer:
=−7p−23
Step-by-step explanation:
Answer:
-23 - 7 p
Step-by-step explanation:
Hope it helps!
7 3/4-2 2/5 = what is the answer
Answer:
5.35?
Step-by-step explanation:
use a calculator and check it
THIS IS URGENT HELP, PLEASE!
Answer:
4/5
Step-by-step explanation:
it goes up 4 and to the right 5 before it intersects perfectly with both axises
x2 - 2x
Factorise this pleasee
Answer:
x(x-2)
Step-by-step explanation:
the common multiple here is the x, notice how it appears in both both terms. thus, we can factor it out of the equation going from x²-2x to x(x-2)
x(x-2)
Im assuming you meant x² - 2x but correct me if i'm wrong!
so x is common in both terms so you can take it out and factorise it.
Hope this helps!
which expression means five times the sum of b and two
A. 5(B+2)
B. 5B+2
C. (B+2) 5
D.B (5+2)
Step-by-step explanation:
The answer is a (bodmas)
Corresponding means *
A.having the same relationship; matching
B.having the same shape and size.
Three girls share 12 000 in the ratio 2:3:7.Calculate how much each girl will get
Answer:
1st girl- 2000
2nd girl- 3000
3rd girl- 7000
Step-by-step explanation:
1) add the ratio given: 2+3+7=12
2) the answer that you get is the whole and it is equal to the total: 12/12=12000
3) so now you'll simplify to get the share of each girl: 12/12=12000, what about 2/12(for the first girl)
12/12=12000, what about 3/12(for the 2nd girl)
12/12=12000, what about 7/12(for the 3rd girl)
4) after getting the answer for each, you can add their shares to see if they are equivalent to the total share
What is z4 + z4 + z4 + z4?
Answer:
4z
Step-by-step explanation:
How do you do this what the answer to number 12
I need the answer and step by step directions please
Answer: 56
Step-by-step explanation:because x=5+3 y=1+6 area of rectangle abcd=xy
8*7=56
Which of the following is equivalent to 3/33x^3y^6
Answer:
Step-by-step explanation: d
somebody help me pleaseeee
Answer:
I can't see the picture. Sorry
Step-by-step explanation:
The diameter of the circular track at the Jr. High School is 300 feet. If Erica walks around the track three times, how far did she walk?
Answer:
900 feet
Step-by-step explanation:
300x3=900 she walked 900 feet
Find the Volume of the prism
10 mm
13 mm
10 mm
Answer:
33 I hope this helps good luck with the answer
There are a total of 82 students in a drama club and a yearbook club. The drama club has 18 more students than the yearbook club. How many students are in the drama club? the yearbook club?
Answer:
Drama club 82 students
yearbook club 100 students