The following equations could be used to find the price of a child's ticket, 3x + 2(2x) = 28, the correct option is B.
What is an Equation?An equation is a mathematical statement formed when two expressions are equated using an equal sign.
The equations are useful in determination of unknown parameters.
The equations are of various types, such as Trigonometric equations, quadratic equations.
The system of equations are used to solve complex problems.
Let the cost of child ticket is $x
An adult ticket is twice the cost of a child's ticket.
Let the cost of adult ticket is $2x
The total amount Angela paid is $28 for two adult tickets and three children's tickets.
The equation that will be formed is
4x + 3x = 28
It can also be written as 3x + 2(2x) = 28.
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1. Rút gọn biểu thức A(x) = (x+2)(x+3)(x+5) - (x-1)(x+4)(x+7). Từ đó tìm tất cả các giá trị x sao cho A(x) = 0.
x = -29/7
Step-by-step explanation:
A(x) = (x^2 + 5x + 6)(x + 5) - (x^2 + 3x - 4)(x + 7)
= (x^3 + 10x^2 + 31x + 30) - (x^3 + 10x^2 + 17x - 28) = 14x + 58
A(x) = 0 => 14x + 58 =0 => x = -58/14 = -29/7
Answer:
778744
Step-by-step explanation:
387t98878989890
Click on pictures for question and graph
La base de un rectangulo es doble que su altura Cuales son sus dimensiones si el perímetro mide 108 cm
Answer:
el ancho es
18
pulgadas y la longitud es
2
×
18
=
36
pulgadas.
Step-by-step explanation:
Answer:
36
Step-by-step explanation:
What is the Tenth COMMON FACTOR of 6 and 9? (DO NOT respond with the LCM of 6 and 9)
Rearrange the equation so xxx is the independent variable.
-5x-4y=-8
y=
Answer:
[tex]\displaystyle x = \frac{4y - 8}{-5}[/tex]
General Formulas and Concepts:
Pre-Algebra
Equality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityAlgebra I
Terms/CoefficientsStep-by-step explanation:
Step 1: Define
Identify
[tex]\displaystyle -5x - 4y = -8[/tex]
Step 2: Solve for x
[Addition Property of Equality] Add 4y on both sides: [tex]\displaystyle -5x = 4y - 8[/tex][Division Property of Equality] Divide -5 on both sides: [tex]\displaystyle x = \frac{4y - 8}{-5}[/tex]Answer:
4y-8/ -5
Step-by-step explanation:
A dice is rolled twice and the result the result of each roll is added together. What is the probability that the sum is equaled to 2?
Answer:
1/36
Step-by-step explanation:
to get a sum of 2 you must roll a 1 both times. The probability of this is (1/6)*(1/6)=1/36
Answer:
1/36
Step-by-step explanation:
There are 36 total possibility, and 2 is one of them
Please answer these two question please please I need helpppppp
Answer:
Step-by-step explanation:
10.
a. y=30x + 50
b. 30(2.5)+50= 125
c. y= 60x+100
d. 60(2.5)+100= 250
Answer:
10)
a) y = 50+30x
b) y=50+30(2.5)
50+75 = 125
c) y = 2(50+30x)
d) y=2(50+30(2.5))
2(50+75)
2(125) = 250
13)
a) P = 2 ( L + W )
10x+2
b) A = W L
5x+1
c) for A its 15x+3 and for B its 54 x 2 + 18 x
HELP I ONLY HAVE 5 MINUTES LEFT
Answer:
i=13
Step-by-step explanation:
can anyone please help me?
Answer:
x = 1.4 or -1.4
Step-by-step explanation:
→ Substitute y = 4 into y = x² + 2
4 = x² + 2
→ Minus 2 from both sides
2 = x²
→ Square root both sides
√2 = x
→ Simplify
x = 1.4 or -1.4
A net of a three-dimensional figure is shown. What is the surface area of the three-dimensional figure?
Answer:
184 ft^2
Step-by-step explanation:
in the picture
100 POINTS
My neighborhood is full of one-way streets. To drive from my house to the grocery store, I have to go 1 block south, then 1 block east, then 5 blocks north, then 2 blocks east. Each block is 1/16 of a mile. How much shorter would my trip be if I could fly like a bird (that is, travel in a straight line)?
I FOUND THE distance for non bird which is 9/16. I wanna apply the pythagoreum theorum and draw a straight line to make it a triangle so I can do so but don't know where to place it
Answer:
1/4
Step-by-step explanation:
Graph the solution of the inequality 2x − (3 − x) > x + 1 on the number line. sorry i don't have a graph but quick pls help'll give brainliest!!!
Answer:
see below
Step-by-step explanation:
2x − (3 − x) > x + 1
Distribute the minus sign
2x-3+x > x+1
Combine like terms
3x-3 >x+1
Subtract x from each side
3x-3-x>x+1-x
2x-3 >1
Add 3 to each side
2x-3+3>1+3
2x>4
Divide by 2
2x/2 >4/2
x>2
Open circle at 2 , line going to the right
Answer:7
Step-by-step explanation:
Find the arc length of the partial circle.
Either enter an exact answer in terms of π or use 3.14 π and enter your answer as a decimal.
Answer:
1/2 pi
Step-by-step explanation:
This is 1/4 of a circle
Find the circumference and multiply by 1/4
1/4 C
1/4 ( 2*pi*r) where r is the radius
The radius is 1
1/2 pi*1
1/2 pi
Answer:
Step-by-step explanation:
A full circle has a circumference of 2*pi * r
r = 1
so Full Circle = 2 * PI
1/4 Circle = 2*pi / 4 = 1/2 pi
The length of the arc length = 1/2 pi
Just in case you prefer the more numerical answer, 1/2 * 3.14 = 1.57
PLZ HELPPPP!!! WILL GIVE BRAINLIEST! TYSM!!
Find the arc length of the semicircle.
Either enter an exact answer in terms of π (pi) or use 3.14 and enter your answer as a decimal.
Answer:
6 pi
Step-by-step explanation:
The arc length is 1/2 of the circumference
C = pi * d
So the arc length is 1/2 C
arc length= 1/2 ( pi *d)
= 1/2 pi(12)
= 6 pi
Someone help please!!!!!
Graph the line that represents a proportional relationship between ddd and ttt with the property that an increase of 3 units in ttt corresponds to an increase of 8 units in ddd.
What is the unit rate of change of ddd with respect to ttt? (That is, a change of 1 unit in t will correspond to a change of how many units in d?)
The unit rate of change of d with respect to t is 8/3
How to graph the line?The statement is given as:
increase of 3 units in t corresponds to an increase of 8 units in d.
This can be represented using the following ratio
t : d = 3 : 8
Express as fraction
t/d = 3/8
See attachment for the graph of t/d = 3/8
The unit rateIn (a), we have:
t/d = 3/8
Inverse both sides
d/t = 8/3
This means that:
Slope or Rate = 8/3
Hence, the unit rate of change of d with respect to t is 8/3
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Please help thx and I will mark you as brainliest!
First one : y=1/3x+4.32
Second one: y=3x-2
Explanation: try Desmos. its a magical machine
Answer:
see explanation
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 ) = (5, 6) and (x₂, y₂ ) = (- 1, 4)
m = [tex]\frac{4-6}{-1-5}[/tex] = [tex]\frac{-2}{-6}[/tex] = [tex]\frac{1}{3}[/tex] , then
y = [tex]\frac{1}{3}[/tex] x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (- 1, 4 ) , then
4 = - [tex]\frac{1}{3}[/tex] + c ⇒ c = [tex]\frac{12}{3}[/tex] + [tex]\frac{1}{3}[/tex] = [tex]\frac{13}{3}[/tex]
y = [tex]\frac{1}{3}[/tex] x + [tex]\frac{13}{3}[/tex] ← equation of line
-----------------------------------------------------------------------
The equation of a line in point- slope form is
y - b = m(x - a)
m is the slope and (a, b) a point on the line
Here m = 3 and (a, b) = (- 2, 0 ) , then
y - 0 = 3(x - (- 2) ) , that is
y = 3(x + 2)
y = 3x + 6 ← equation of line
A map is drawn to a scale of 1 cm to x m. A plot of land with an area of 28 hectares is represented by an area of 112 cm?. Find the value of x. (1 hectare = 10 000 m²)
Answer:x=50
Step-by-step explanation:
28 hectares=28 0000 m2
1000
2500
50
the area ratio is the square of the scale drawn ratio
Mind uh... Answering my question?
Answer:
12 ounces
Step-by-step explanation:
[tex]3 \div 4 \\ = 0.75 [/tex]
1 pound = 16 ouncesmultiply the mass value by 16.[tex]0.75 \times 16 \\ = 12[/tex]
Hope it is helpful....Answer:
12 ounces
Step-by-step explanation:
The graph shows the depth, y, in meters, of a shark from the surface of an ocean for a certain amount of time, x, in minutes:
Part A: Describe how you can use similar triangles to explain why the slope of the graph between points A and B is the same as the slope of the graph between points A and C. (4 points)
Part B: What are the initial value and slope of the graph, and what do they represent? (6 points)
Answer:
Part A: label the points, so i know what ur talking about
Part B: m=1, the slope of the graph is 1
Step-by-step explanation:
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Which fractions are equivalent to 40%? Check all that apply.
StartFraction 8 Over 100 EndFraction
Two-fifths
StartFraction 8 Over 20 EndFraction
StartFraction 4 Over 10 EndFraction
StartFraction 16 Over 40 EndFraction
btw: its a multiple choice question
help help help help help help help help
Answer:
Option A is correct
Step-by-step explanation:
6 feet 2 inches = 74 inches
74 inches = [tex]6 \frac{1}{6} [/tex]feet.
Hope it is helpful....Hey! Can anybody help? I’m stuck on this question
Please help me! I will give brainly!
A law in Washington, D.C., restricts a new building's height to no more than 20 feet taller than the width of the street it faces. You design a building with stories that are each 15 feet tall for a street that is 88 2/3 feet wide. What is the greatest number of stories your building can have?
_______ Stories
How much shorter is your building than the height restriction?
________Feet
It can be up to 20 feet taller so add 20
To the width:
88 2/3 + 20 = 108 2/3
Divide total height by the height of one story:
108 2/3 / 15 = 7.24
The building can have 7 stories.
b. 7 x 15 = 105 total feet
108 2/3 -105 = 3 2/3 feet below the restrictions
Write a ratio and a percent for the shaded figure.
Total Squares = 10 × 10
= 100
Shaded Squares = 100 - (6×6)
= 64
Non Shaded = 6 × 6
= 36
Now Ratio of shaded portion is 64:100
= 16:25
Percentage = 64/100 × 100
= 64%
Answered by Gauthmath must click thanks and mark brainliest
Help please!!! I only have 10 minutes!!
[tex] - 0.7[/tex]
Step-by-step explanation:
[tex] \frac{1}{2} ( - 1.4m + 0.4) [/tex]
[tex] = - 0.7m + 0.2[/tex]
(07.02 LC)
How many solutions does the equation −4y + 4y + 2 = 2 have? (1 point)
Will mark brainliest
Answer:
infinite solutions
Step-by-step explanation:
−4y + 4y + 2 = 2
Combine like terms
2=2
This is always true so there are infinite solutions
given m=-2 and y intercept (0,-2) find the equation of the line in standard form.
Answer:
the answer is -2x-y=2
Step-by-step explanation:
Ax+By=C
y=mx+b
y=2x-2
-2x-y=2
Answer:
y=−2x−2
Step-by-step explanation:
HEEEEELLLLLLPPPPPPPPOP
4(x-8) = 4x-4*8
= 4x - 32
Answer:
4(x-8) = 4x-4*8
= 4x - 32
Step-by-step explanation:
There is a blueprint for a house that is a scale drawing for the entire house. One part of the house has a triangular base. The drawing of the width of the triangle is 4cm and the length is 6cm. If the width of
