Answer:
48
Step-by-step explanation:
Khan Academy
The value of [A] will be 48.
What is Equation Modelling?Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.
Given is that we have rewritten -
(1/7)ˣ ⁻ ² - (1/7)ˣ as [A] x (1/7)ˣ
We have (1/7)ˣ ⁻ ² - (1/7)ˣ rewritten as [A] x (1/7)ˣ. So, we can write -
(1/7)ˣ ⁻ ² - (1/7)ˣ = [A] x (1/7)ˣ.
Now, we can write [(1/7)ˣ ⁻ ² - (1/7)ˣ] as :
[(1/7)ˣ / (1/7)²] - (1/7)ˣ
(1/7)ˣ [1/(1/7)² - 1]
We have -
(1/7)ˣ ⁻ ² - (1/7)ˣ = [A] x (1/7)ˣ.
So, we can write -
(1/7)ˣ × [1/(1/7)² - 1] = [A] × (1/7)ˣ.
On comparing, we get -
[A] = [1/(1/7)² - 1]
[A] = 48
Therefore, the value of [A] will be 48.
To solve more questions on Equation Modelling, visit the link below -
brainly.com/question/14441381
#SPJ2
Solve for the variable
7x = -35
Answer:
x = -35/7
= -5
Answer:
x = -5.
Step-by-step explanation:
7x = - 35
x = -35/7
x = -5.
PLEASE HELO FAST I HAVE TO SUBMIT SOON
Answer:
113.4 = x(18)
x = 6.3
Step-by-step explanation:
find the volume and the total surface area of a cuboide whose dimension 2m, 80cm and 60cm
Answer:
Volume= 0.96m^3
TSA= 6.56m^2
Step-by-step explanation:
Given data
Length = 2m
Width= 80cm= 0.8m
Height= 60cm= 0.6m
Volume= L*W*H
Volume= 2*0.8*0.6
Volume= 0.96m^3
TSA=2lw+2lh+2hw
TSA= 2*2*0.8+2*2*0.6+2*0.6*0.8
TSA= 3.2+ 2.4+ 0.96
TSA= 6.56m^2
question is in the pic
Answer:
I would say A.
Step-by-step explanation:
Both of the bakeries' data does seem symmetric, so use the mean.
Hope it is correct!
Answer:
Prolly A
Step-by-step explanation:
so sorry if I'm wrong hope I'm right
hello please help me, i’m stuck on this one :(
Answer:
The second option, B.
[tex](x| -3< x \leq 2)[/tex]
Explanation:
Since the point on -3 is hollow, this means that -3 is not included in the equation. Therefore, -3 < x. Since the point on 2 is filled, this means that 2 is a valid number that is included in the equation. Therefore, [tex]x\leq 2[/tex].
At a strawberry stand Luisa paid $4.50 for 2 pounds of strawberries. How much would you expect to pay for five pounds or strawberry?
Half of 4.50 is 2.25, so for one pound it would be $2.25.
To calculate five pounds, you need to add 2.25+2.25+2.25+2.25+2.25 = 11.25.
For five pounds of strawberry's, it would cost $11.25.
Hope this helped !
Dawn is ordering 1 veggie sandwich for every 3 ham sandwiches. She needs 12 sandwiches in all. Veggie sandwiches cost 4.00 dollars each and ham sandwiches cost 4.50 each. How many will dawn spend on sandwiches?
Answer:
$52.50
Step-by-step explanation:
Lets use V for Veggie, and H for Ham.
V=4
H=4.50
She is getting 12 sandwiches, and Every 3 H, she buys one V.
So, the order of her buying the sandwiches would be:
H H H V H H H V H H H V
9 H and 3 V
9*H=40.5
3*V=12
40.5+12= $52.50
The total cost of all the sandwiches is given by the equation A = $ 52.50
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the total cost of 12 sandwiches be A
Now , the equation will be
For every 1 veggie sandwich 3 ham sandwiches are ordered by Dawn
The cost of veggie sandwich = $ 4.00
The cost of ham sandwich = $ 4.50
So ,
Let the veggie sandwich be = x
Let the ham sandwich be = y
The total number of sandwiches = 12
So , x + 3y = 12
when x = 3 and y = 3
3 + 3 ( 3 ) = 12
3 + 9 = 12
12 = 12
Therefore , the number of veggie sandwich = 3
The number of ham sandwich = 9
And , the cost of 3 veggie sandwich = 3 x 4.00
The cost of 3 veggie sandwich = $ 12
The cost of 9 ham sandwich is = 9 x $ 4.50
The cost of 9 ham sandwich is = $ 40.5
The total cost of 12 sandwich A = cost of 3 veggie sandwich + cost of 9 ham sandwich
Substituting the values in the equation , we get
The total cost of 12 sandwich A = 12 + 40.50
The total cost of 12 sandwich A = $ 52.50
Therefore , the value of A is $ 52.50
To learn more about equations click :
https://brainly.com/question/19297665
#SPJ5
Katrina received a raise in pay from $14.00 per hour to $15.10 per hour. What is her percent increase in pay per hour?
Type your answer using the % key. Round to the nearest whole percentage if necessary.
Answer:
8%
Step-by-step explanation:
(New - original) / original x 100
($15.10 - $14)/ $14 x 100 = 7.85 %
7.85% to the nearest whole percentage is 8%
How many solutions does the equation 3x - 7 = 4 + 6 + 4x have?
OTwo
O Zero
O Infinitely many
O One
Answer:
one
Step-by-step explanation:
3x-7=4+6+4x
3x=7+4+6+4x
3x=17+4x
3x-4x=17
-x=17
x=-17
I NEED HELP PLZZ :((
5/2 ÷ 3/4
pls help me solve this
Answer:
3 1/3 Because When we divide two fractions, such as 5/2 ÷ 3/4, we flip the second fraction and then we simply multiply the numerators with each other and the denominator with each other.
Step-by-step explanation:
remember to simplify if ever possible!:D
soooo
in order to do this both fractions has to have the same denominator
so you find the CMD (common denominator)
which is 4
so you'd only change 5/2
5/2 * 2/2 to make it 10/4
now both fractions have the same denominator
you do keep change flip
you keep 10/4
change division to multiplication
and flip 3/4 TO 4/3
which would equal
10/4 * 4/3= 40/12
40/12
and you divide it with long division
you get 3 as ur quotient
divisor as 12
and remainder as 4
= 3 4/12
nd u simplify which u divide 4/12 by 4 and get 1/3
so the answer would be 3 1/3
and in order to check you can use an online fraction calculator
1.
Which relationship shows y as a function of x?
A. {(-3, 8), (-8, -1), (5, -7), (-8, -8)
B. {(3,-2), (-3, 7), (-7, 0), (1, 2)}
C. {(0, 3), (9, -8), (0, 8), (-6, -5)}
D. {(1, 0), (1, 5), (-4, 5), (-8, 0)}
Levi went to GamePlay to trade in his old games. GamePlay will pay him $4.99 per game he trades in. If Levi trades in 5 games and wants to purchase a new game for $59.99, how much will he have to pay? Write your answer as a decimal to two places.
Answer:
He will have to pay $35.04
Step-by-step explanation:
4.99 x 5 = 24.95
59.99 - 24.95 = 35.04
What has more volume? Shoe box, dog, airplane, or desk.
Answer:
Airplane
Step-by-step explanation:
Answer:
Airplane
Step-by-step explanation:
Volume is the amount of mass an object has. Using common sense you can easily identify an airplane as the largest,
ANSWER THESE TWO QUESTIONS CORRECTLY TO BE MARKED BRAINILEST
Answer:
In this example, if you buy an item at $18.99 with 25% discount, you will pay 18.99 - 4.7475 = 14.24 dollars.
Step-by-step explanation:
Please help I'm really bad at math. I will mark you brainliest if you get the answer right.
Answer:
A & D
Step-by-step explanation:
A. 9(3x-1) = 27x-9 ✔
B. 27x-1(9) = 243x-9 ❌
C. 27(x-9) = 27x-243 ❌
D. 3x-1(9) = 27x-9 ✔
E. 9(27x-1) = 243x-9 ❌
F. x-9(27) = 27x-243 ❌
a population of 100,000 decreases by 6% each year. write a graph to explain that
Answer:
Step-by-step explanation:
Your graph equation is going to be y = 100,000 - .06x
Work out the volume of the cone give the answer to 3 significant figures plz help
Answer:
i think the answer is 1010
Step-by-step explanation:
1/3 × 3.142 × 8^2 × 15
Rudy has 8 yards of twine. If he cuts the twine into equal pieces of 3/4 feet each, how many pieces can he cut?
What is the exact volume of the cone? with a 5 ft radius and a 16 ft height
Answer:
The volume is 418.93 ft^3
Step-by-step explanation:
Here, we want to find the volume of a cone
Mathematically, we use the formula;
V = 1/3 * pi * r^2 * h
r = 5 ft
h = 16 ft
Substituting these values;
V = 1/3 * 3.142 * 5^2 * 16
V = 418.93 ft^3
please help me !!
Line q goes through points (-3, 3) and (-5, -3). At what point does line q cross the y-axis?
Answer:
(0, 12 )
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 3, 3) and (x₂, y₂ ) = (- 5, - 3)
m = [tex]\frac{-3-3}{-5+3}[/tex] = [tex]\frac{-6}{-2}[/tex] = 3 , then
y = 3x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (- 3, 3 ), then
3 = - 9 + c ⇒ c = 3 + 9 = 12 ← y- intercept
Thus the line crosses the y- axis at (0, 12 )
Answer:
It crosses the y-axis at the point where y = 12
- the point (0, 12).
Step-by-step explanation:
First we need to find the equation of the line q:
The slope of the line = (-3-3)/(-5-(-3))
= -6/-2
= 3.
Using the point-slope form of a line:
y - y1 = m(x - x1) Take the point (-3, 3):
y - 3 = 3(x -(-3)
y - 3 = 3x + 9
y = 3x + 12.
Where q crosses the y-axis x = 0 so we have
y = 3(0) + 12
y = 12
The required point is (0, 12).
In a lab experiment, 5300 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to double every 10 hours. How many bacteria would there be after 12 hours, to the nearest whole number?
Answer:
12,720
Step-by-step explanation:
5300 times 2.4 = 12,720
When labeling a pre-image and it's image, we use a small tick mark. It's called a(n):
1. rule
2. tic tok
3. prime
4. quotation
Answer:
Prime
Step-by-step explanation:
If we have a point on a pre-image, we can have it labelled as A(x,y)
Now, we can write this as the image
To write this as the image, we simply have to add a mark on the A
This mark is at the upper right
We have it as A’ (x,y)
The part added is called a prime
Answer:
It’s a prime
Step-by-step explanation:
4x + 5 + 3x – 12 =
A.9x-9
B.7x+7
C.7x-7
Answer:
7x - 7
Step-by-step explanation:
In this equation you are going to add like terms.
The like terms you have are the terms with x and then the terms without the x.
So 4x + 3x = 7x
5 - 12 = -7
So your answer is 7x-7
Brittany is making cookies. Her recipe calls for 2 1/2 cups of flour and 2/3 cups of sugar how much more flour does she need than sugar
She needs 1 5/6 more cup(s) of flour than sugar ! Or , 11/6 more cup(s) of flour than sugar!
-Vamp :-)
Please I don’t understand I need help thank you
Answer:
Step-by-step explanation:
since I cant motivate myself to do my work and stop procrastinating.....can someone motivate me?:/
Answer:
take a time lapse video of yourself doing your homework on your phone! this way you won't be able to use your phone bc it will be doing the timelapse, and then after you finish you'll be able to go back and watch it :)
Step-by-step explanation:
Answer:
Make up a random doodle and name it bob.....YOU CAN DO THIS
Step-by-step explanation:
Which of the following equations have no solutions?
Choose all answers that apply:
A
152 - 45 = 750 + 75
B.
15% - 45 = 15x + 75
c
45x – 45 = -15% + 75
D
-450 – 45 = -75x + 75
Answer: B
Step-by-step explanation:
Equation A:
15x - 45 = 75x + 75
=> -120 = 60x
=> x = -2
Equation B:
15x - 45 = 15x + 75
=> 0 = 15
No Solutions
Equation C:
45x - 45 = -15x + 75
=> 60x = 120
=> x = 2
Equation D:
-45x - 45 = -75x + 75
=> 30x = 120
=> x = 4
PLEASE HELP WHATS THE ANSWER
Answer:
2,744
Step-by-step explanation:
[tex]C = 400 \sqrt[3]{n} + 200 \\ \\ plug \: C =5800 \\ \\ 5800 = 400 \sqrt[3]{n} + 200 \\ \\ 5800 - 200 = 400 \sqrt[3]{n} \\ \\ 5600 = 400 \sqrt[3]{n} \\ \\ \frac{5600}{400} = \sqrt[3]{n} \\ \\ 14 = \sqrt[3]{n} \\ \\ {(14) }^{3} = {(\sqrt[3]{n})}^{3} \\ (cubing\: both\: sides) \\\\ 2,744 = n \\ \\ n = 2,744[/tex]
if john weighs 8lbs less than twice his sister's weight, what is the difference between their weight if john weighs 180 lbs?
Answer:
86 is the difference
Step-by-step explanation:
180 + 8 = 188
188 / 2 = 94
188 - 94 = 86
Answer:
The difference between their two weights is 86 lbs
x•2-8=180 (x= sister weight)
180+8=188
188÷2= 94 (x=94)
189-94= 86
Can someone help ? I dont understand this
Answer:
4854
Step-by-step explanation:
2=434344=3
[46664792)
Answer:
31°
Step-by-step explanation:
The angle 59° will be equal to the angle c in triangle ABC.
Angle B will be 90°
Angle A + Angle B + Angle C = 180° (ASP)
Angle A + 90° + 59 ° = 180 °
Angle A = 180° - 90° - 59°
Angle A = 31°
Angle A = x
31° = x