Select all of the equations that are equivalent to 3 x − 12 = 19
A 3x-12=19
B 3x=7
C 3x=31
D 3x+31=0
E 5x-12=2x+19
F x-4=(19/3)
Answer:
X=2
Step-by-step explanation:
x
=
−
2
Explanation:
Collect terms in x on the left side of the equation and numeric values on the right side.
add 3x to both sides.
5
x
+
3
x
+
12
=
−
3
x
+
3
x
−
4
⇒
8
x
+
12
=
−
4
subtract 12 from both sides.
8
x
+
12
−
12
=
−
4
−
12
⇒
8
x
=
−
16
To solve for x, divide both sides by 8
8
x
8
=
−
16
8
⇒
x
=
−
2
As a check
Substitute this value into the equation and if the left side is equal to the right side for this value then it is the solution.
left side
=
(
5
×
−
2
)
+
12
=
−
10
+
12
=
2
right side
=
−
(
3
×
−
2
)
−
4
=
=
6
−
4
=
2
⇒
x
=
−
2
is the solution
Answer:
b Beacuse you can't times 3 by twelve but you can multiple 3times7+1 to get 19
berapakah hasil dari 33 1/2 - 7 x 8 + 2 - 5,5 adalah, mohon bantuan nya kakak
Saya yakin jawabannya adalah -26 karena ketika Anda melakukan perkalian terlebih dahulu, kemudian lakukan pecahan 33 1/2 dan setelah itu Anda akan menambahkan 2 dan pengurangan 5,5 yang semuanya akan sama dengan -26. semoga saya benar dan ini membantu. (:
each face of a cube is a square with a side length of 7 inches what is the total area off all the faces of the cube
PLEASE HELP PLEAAE HURRY ANS NO LINKS PLEASE I REALLY NEED THE ANSWER
Answer:
3(x+15) is the answer
Step-by-step explanation:
The equation x+15 repeats 3 times so you would have to create an equation to multiply x+15 3 times.
3x+15 is wrong because its only multiplying x by 3 and ignoring 15
x+45 is wrong because it is only multiplying 15 by 3 and ignoring x
x+15 is wrong because it is not multiplied by 3
3(x+15) is correct because it is the only answer that multiples 3 with both terms
Hope this helps
Answer:
Lets say that x is the number 5,
Step-by-step explanation:
5 divided by 15 = 0.33333333333
5 divided by 0.33333333333 = 15
5 + 15 + 5 + 15 + 5 + 15=60
(I know im all over the place with this, but this is just what i do)
60 - 15 = 45
15 + 45 = 60
I know this is random but maybe you may figure it out or get a random hint??, 3(x+15) is 3x + 45
PRETTY SURE ITS 3(x+15) Please give me brainliest i sat here for like 24 mins trying to figure this out :(
Pls help ASAP pls it’s reasoning with fractions
solve each proportion
how do you do this?
Answer:
solve each proportion
how do you do this?
Step-by-step explanation:
13) Store A and Store B both sell apples by the pound. Store A uses the function y = 0.38x,
where y represents the total cost in dollars and x represents the number of pounds. The
relationship between weight and cost at Store B is shown in the table. At which store
are apples more expensive?
50 Points NEED HELP ASAP PLS AND THANK YOU
A) Store A
B) Store B
C) The cost is the same at both stores
C is the answer
8,326 x 9 =n
which is the answer?
A. 52,234
B.74,934
C.2,376
D.3008
E. none
Answer:
B
Step-by-step explanation:
Answer:
2376 square feet
Step-by-step explanation:
40 x 15 = 600
40 x 24 = 960
1/2 x (24 x 9) = 108
600 + 600 + 960 + 108 + 108 = 2376
The entire graph of the function f is shown in the figure below.
Write the domain and range of f using interval notation.
Answer:
range =[-5,5]
domain =[-2,3]
Solve for z:
32=12+4(z-1)
Answer:
6
Step-by-step explanation:
32 = 12 + 4 ( z - 1 )
32 - 12 = 4 ( z - 1 )
20 = 4 ( z - 1 )
20 / 4 = z - 1
5 = z - 1
z - 1 = 5
z = 5 + 1
z = 6
he total cost of 5 doughnuts and 6 cookies at a bakery is $11.95. The cost of each cookie is $0.95.
Select the equation and its solution that can be used to determine the cost, x, of 1 doughnut.
Answer:
x=1.25
Step-by-step explanation:
Answer:
($0.95 * 6) + (5x) = $11.95
The cost of one donut (x) = $1.25
Step-by-step explanation:
I hope this helps!
(9+8i)(5-5i) in standard form
Answer:
40i²-5i+45
Step-by-step explanation:
(9+8i)(5-5i)9(5-5i)+8i(5-5i)45-45i+40i-40i²45-5i-40i²40i²-5i+45Help me plz o don’t know what to write and how to plz help me
9514 1404 393
Explanation:
Anything is categorized by how it matches with the definition of the category.
A composite number is a product of primes. A prime number is divisible only by itself and 1.
If a number has more than one prime factor (even if that is just multiple instances of the same prime factor), it goes into the composite number category. If its only prime factor is itself, it goes into the prime number category.
A snail is at the bottom of a 10 foot well. Every
day, he crawls up 3 feet, but at night, he slips
down 2 feet. How many days will it take for him to get
out of the well?
Answer:
10 days.
Step-by-step explanation:
3-2 = 1 foot of progress per day.
Answer:
8 days
Step-by-step explanation:
We get 8 days because the snail gets one foot higher every day. By the morning of the 8th day, the snail is 7 feet up and just needs to climb its daily 3 feet and it will be out of the well. You don't need 10 days because the snail only falls at night.
PLEASE HELP!!!!!
WILL MARK BRAINLIEST!!!!
What is the value of 9 squard
I presume you mean 9 'square'
9^2= 9 X 9 = 81
Cheerio ✌️
Step-by-step explanation:
The value of 9 Square is = 9 ×9= 81
Hope it's help you
What is the equation of the line that passes through the point (–2, 1) and
has a slope of - 5/2
Answer:
y = -5/2x + -4 (or) y = -5/2x - 4
Step-by-step explanation:
Your slope is -5/2, so all you have to do is take the point (-2, 1) and use the slope to find a second point of (0, -4) which is coincidentally the y-intercept. Then you just plug the data into the equation y = mx+b. You do that and you get the answer of y = -5/2x+-4
Use place value and properties of operations to find the sum.
5.8
+2.3
= _
Type a whole number or a decimal
Answer:
8.1
Step-by-step explanation:
find the value of x and y
will give brainiest
Answer:
[tex]2x + 7 = 3x - 7 \\ 3x - 2x = 7 + 7 = 14 \\ x = 14 \\ 2x + 7 + 12y + 1 = 180 \\ 12y + 36 = 180 \\ 12y = 180 - 36 = 144 \\ y = 144 \div 12 = 12[/tex]
find the slope of the parabola y equals to e^(-4x) sin6x at the point P(2,4). write an equation for the tangent to the parabola at this point
The equation of the tangent line to the curve is:
[tex]y - 4 = 0.0024(x - 2)[/tex]
Which has a slope of 0.0024.
The tangent line of a curve [tex]f(x)[/tex] at a point [tex](x_0,y_0)[/tex] is given by:
[tex]y - y_0 = f^{\prime}(x_0)(x - x_0)[/tex]
In this problem, the curve is:
[tex]f(x) = e^{-4x}\sin{6x}[/tex]
The derivative is:
[tex]f^{\prime}(x) = -4e^{-4x}\sin{6x} + 6e^{-4x}\cos{6x}[/tex]
Point P(2,4), thus [tex]x_0 = 2, y_0 = 4[/tex].
The slope is:
[tex]f^{\prime}(2) = -4e^{-4(2)}\sin{6(2)} + 6e^{-4(2)}\cos{6(2)} = 0.0024[/tex]
Then, the equation of the line is:
[tex]y - y_0 = f^{\prime}(x_0)(x - x_0)[/tex]
[tex]y - 4 = 0.0024(x - 2)[/tex]
A similar problem is given at https://brainly.com/question/22426360
Determine if the following system of equations has no solutions, infinitely many
solutions or exactly one solution.
-5x + y = -2
20x – 4y = 8
A soccor team last 30% of its games suppose the team won 14 games how many games did the team play
Answer:
its 20 games in total
the equation is 14×100÷70
The probability of drawing three spades in a from from a standard deck of cards when the drawn card is returned to the deck each time.
Answer:
1/64
Step-by-step explanation:
P(pick 3 consecutive spades with replacement of drawn cards) =
(13/52)(13/52)(13/52) =
(1/4)(1/4)(1/4) =
1/64
2.5% of 2 2/5
is what number?
Answer:
The number is 0.06, or 6 hundredths.
Step-by-step explanation:
If we convert 2 2/5 to a decimal, we get 2.4
Then, we can convert our percentage to a decimal by moving our digits two units down, giving us .025.
Now, we can multiply 2.4 and .025, which gives us 0.06
If odd natural numbers are less than 7, then they are prime numbers.
True or False?
need help asap on 9, 10,and 11
Step-by-step explanation:
9. a)
2•(-2) = 2 - 6
-4 = -4
-2 -2 = -2•2
-4 = -4
Yes, the ordered pair is the solution
9. b)
-1 = 3•(-2) +5
-1 = -6 +5
-1 = -1
3•(-2) +(-1) = -2
-6 -1 = -2
-7 ≠ -2
No, the ordered pair is not the solution
10. (-1, -1) and (3, -1)
11.
y = 6 +x
Now substitute it in the first equation:
3•(6 +x) = 5x
18 + 3x = 5x
18 = 2x
x = 18/2
x = 9
Now, substitute x = 9 in the second equation:
y -9 = 6
y = 6 +9
y = 15
expression is equivalent to (f + g)(4)
Answer:
Answer: The Expression (f + g)(4) is equal to f(4) + g(4).
Step-by-step explanation:
I need super help with this one.
Which expression is equivalent to 8k+10+9k+1?
-k+11 18k+10
-k+9 or 11+17k
Answer:
[tex]8k + 10 + 9k + 1 = k(8 + 9) + (10 + 1) \\ = 17k + 11[/tex]
Can anyone help me its due tomorrow
Answer:
No,the price is not within their budget.
Step-by-step explanation:
Because if you take 144 times 76 you get 10,944 which goes past their budget of 10,000
Answer:
They are over budget by $1,232.
Step-by-step explanation:
They want to replace 144 computer monitors each for $76.
$76 * 144 = $11,232
Their budget is $10,000 so they would be over budget by:
$11,232 - $10,000 = $1,232
Evaluate.
3⋅2^3+5^2−18÷6
25
31
40
46
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Let's evaluate :
[tex]3(2) {}^{ 3} + {5}^{2} - (18 \div 6)[/tex][tex](3 \times 8) + (25) - (3)[/tex][tex]24 + 25 - 3[/tex][tex]49 - 3[/tex][tex]46[/tex]Answer:
[tex]46[/tex]
Step-by-step explanation:
Hey there,
Before solving the sum you have to know about the BODMAS theorem.
That means you have to solve this sum according to the BODMAS theory.
BODMAS theory is,
B - Brackets
O - Of
D - Division
M - Multiplication
A - Addition
S - Subtraction
Let us solve the sum now.
[tex]3 \times {2}^{3} + {5}^{2} - 18 \div 6 \\ 3 \times 8 + 25 - 18 \div 6 \\ 24 + 25 - 3 \\ 49 - 3 \\ = 46[/tex]
Hope this helps you.
Let me know if you have any other questions :-):-)