Answer:
The percent of change is -60%.
Step-by-step explanation:
To find the percentage of change, we find the percentage of the final value, considering the initial valuie is 100%, and then we subtract 100% by the percengate found.
In this question:
Initial price of $3.25 per gallon, which is 100% = 1.
Final value of $1.30, which is x. So
$3.25 - 1
$1.30 - x
[tex]3.25x = 1.30[/tex]
[tex]x = \frac{1.30}{3.25}[/tex]
[tex]x = 0.4[/tex]
The initial value of 0.4 = 40% of the initial value.
So the percent of change is a decrease of 100% - 40% = 60%, that is, -60%.
Which algebraic expression has a term with a coefficient of 9
Answer:
an algebraic expression that has a term with a coefficient of 9 is
9(x +14)
9x + 126
What is 1/3 divided by 2 in fraction form
Answer:
1/6
Step-by-step
When 1/3 divided by 2 gives 1/6.
What is fraction?fraction, In arithmetic, a number expressed as a quotient, in which a numerator is divided by a denominator.
In a simple fraction, both are integers. A complex fraction has a fraction in the numerator or denominator. In a proper fraction, the numerator is less than the denominator.
If we divide 1/3 by 2, which is not possible
Fraction also multiplication only.
To make the division into multiplication we have to reciprocal the number on the right side of the division
So,
1/3÷2
=1/3*1/2
= 1/6
Hence, 1/3 divided by 2 in fraction form gives 1/6.
Learn more about fraction here:
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Solve the following system by elimination. Show work and explain each step.
3x + 2y=16
2x +5y=21
The value of x and y using the elimination approach on the equations will be 3.45 and 2.81 respectively.
What is the equation?There are many different ways to define an equation. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of 2 mathematical expressions.
In another word, the equation must be constrained with some constraints.
Given the set of equations,
3x + 2y=16
2x +5y=21
Multiply by 2 to the first equation and by 3 to the second equation.
Fist becomes ⇒
6x + 4y = 32
Second become ⇒
6x + 15y = 63
By subtracting second - first
11y = 31
y = 2.818181...
By substitution,
6x + 4(2.81) = 32
x = 3.454545..
Hence "The value of x and y using the elimination approach on the equations will be 3.45 and 2.81 respectively".
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The hypotenuse of a right triangle measures 19 meters. One leg measures 15 meters. To the nearest tenth of a meter, what is the length of the other leg?
Answer:
11.7
Step-by-step explanation:
A^2+b^2=c^2
x^2+15^2=19^2
Un comerciante dispone de USD 300 y necesita comprar cierta cantidad de papas y arroz. El quintal de papas cuesta USD 15 y el de arroz, USD 40. Si debe llevar 5 quintales de arroz y la capacidad máxima de su camioneta es de 20 quintales, ¿Cuántos quintales de papas puede llevar como máximo? Escribe tu respuesta como un número entero.
Answer:
23
Step-by-step explanation:
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What is the greatest common factor of 24, 18, and 36?
Answer:
most likely 6
Step-by-step explanation:
because factors of 36 is 4,2,6 etc factors of 18 is 6 and 24 and it the gcf
Answer:
The greatest common factor is 6
Step-by-step explanation:
The factors of 18 are: 1, 2, 3, 6, 9, 18
The factors of 24 are: 1, 2, 3, 4, 6, 8, 12, 24
The factors of 36 are: 1, 2, 3, 4, 6, 9, 12, 18, 36
Will give Brainliest!!!
Answer:
98 degrees
Step-by-step explanation:
Since angle LON is a straight angle, that means its measure is 180 degrees. So, the two angles that make up angle LON add up to 180. You can create the following equation:
(3x + 89) + (8x + 58) = 180
Then, add like terms.
3x + 8x = 11x
89 + 58 = 147
11x + 147 = 180
Subtract 147 from both sides.
11x = 180 - 147
Add like terms.
11x = 33
Now, divide by 11 on both sides.
x = 3
Since we now have the value of x, we can plug it into the equation to find angle MON:
MON = 3x + 89
Substitute 3 for x
MON = 3(3) + 89
MON = 9 + 89
MON = 98
I need help on this ASAP.
Write the equation of the line that passes through (9,3) and (7,3)
Answer:
y=3
Step-by-step explanation:
First, let's find the slope (m) of the line, which we do with the equation (y2-y1)/(x2-x1)
the given points are (9,3) and (7,3)
we can label the points:
x1=9
y1=3
x2=7
y2=3
now substitute into the equation
m=(3-3)/(7-9)
m=0/-2
m=0
the slope is 0.
Now, use slope-point form, which is y-y1=m(x-x1)
substitute using the given numbers
y-3=0(x-9)
multiply
y-3=0
add 3 to both sides
y=3
the equation is y=3
hope this helps :)
To find the total after an i tease or 5% , you could multiply the original amount by 105%.
A. True
B. False
The cost of insurance for your car is 23% of the cost of your new car. The new car costs $20,000. What's the cost of your insurance for the first year?
$460
$920
$230
Answer:
$460
Step-by-step explanation:
Because if you put 23% over 100 and multiply it by 20,000 you should get that
raquel jogged for 1 hour. She ran 6 miles. what was her speed in miles/hour?
Answer:
7 hours
Step-by-step explanation:
yw :)
any genius student ????
can anyone teach me about how to do graph of linear inequalities ....??
please give me the proper answer ;( !!!!!
Step-by-step explanation:
To graph a linear inequality in two variables (say, x and y ), first get y alone on one side. Then consider the related equation obtained by changing the inequality sign to an equality sign. The graph of this equation is a line. If the inequality is strict ( < or > ), graph a dashed line.
how much work is done when a girl pushes a lunch cart 15m across the cafeteria with a force of 3N
Answer:
45 J
Step-by-step explanation:
Just plugged into the work force formula got 45 jules
Triangle ABC has side length of 14, 8 and 10.4 what are the possible side lengths of a triangle DEF if ABC is similar to DEF
Answer:
DEF can have possible side lengths of 28, 16, 20.8
Step-by-step explanation:
Triangle Similarity
If the three sides of two triangles have the same proportion, the triangles are similar (SSS theorem).
Triangle ABC has side lengths of 14, 8, and 10.4.
Any other triangle whose side lengths are the same lengths of ABC multiplied by a constant scale factor is similar to ABC.
For example, select scale factor 2. Thus, the triangle of side lengths 2*14=28, 2*8=16, and 2*10.4=20.8 is similar:
DEF can have possible side lengths of 28, 16, 20.8
Any other scale factor will do.
On Joseph’s bookshelf there are:
8 books about animals
4 books about countries
12 books about cooking
6 books about sports
Joseph chooses a book at random looks at it and places it back on the shelf. He then
Peter has 25 chickens. His uncle has 60 times as many. How many chickens does his uncle have?
25 x 60 = 1,500 chickens
Answer:2400
Step-by-step explanation:
I WILL GIVE BRAINLIEST Which of the following tables of x– and y–values represents a function? Select all that apply.
Answer:
A and C
Step-by-step explanation:
For a table of x and y variables to be a function, each x-value must not have two different y-values assigned or related to it. However, different x-values can have the same y-value.
Therefore, the table in option A and option C are functions because every of their x-value has exactly one y-value that corresponds it.
The heights in inches, of some small trees for sale at a garden store are 62, 62, 59, 61, 59, 70, 59, and 62. What is the median height? What is the mode? What is the mean height?
Answer:
Step-by-step explanation:
the mean height, remember is the average
62+62+59+61+59+70+59+62=494/8=61.75
median is the middle value, so we will write the numbers in order
59,59,59,61,62,62,62,70
we have an even number so we add the middle numbers and divide by 2,
the median=61+62=123/2=61.50
mode is the number that occurs most often : 62 and 59
Write the quadratic function in standard form
Answer:
B. f(x) = x² + 10x + 17
Step-by-step explanation:
Given:
f(x) = (x + 5)² - 8
Required:
Write in standard form
SOLUTION:
f(x) = (x + 5)² - 8
Expand (x + 5)²
f(x) = (x + 5)(x + 5) - 8
f(x) = x(x + 5) +5(x + 5) - 8
f(x) = x² + 5x + 5x + 25 - 8
Add like terms
f(x) = x² + 10x + 17
pls answer asap!! will give brainliest:)))))
Answer:
1st one
Step-by-step explanation:
if you try out 710 divided by 7 times 3 it doesn't equal 390 dollars, so you're not getting a fair price and you're paying extra, whereas you know on the first one that if you double 360 by 2 it equals 720 so it is a linear pricing
Help ASAP !!!
If Leah drove 1,200 miles and used 60 gallons of gas , her average miles per gallon is how much?
Answer:
20
Step-by-step explanation:
We will start by writing the following ratio
miles:gas
1200:60
This means that we have
x:1
divide 1200 by 60 to get x
I get
x=20
Answer:
20 miles per gallon.
Step-by-step explanation:
You have to divide 1,200 by 60. Then you will be left with 20 miles/gallon
Mathematics question
Answer:
Step-by-step explanation:
KL=1/2 YX=1/2×56=28
YZ=2JK=2×38=76
LZ=1/2YZ=1/2×76=38
A local water storage facility is currently empty. The city
water workers begin filling it at a rate
of 500 gallons per minute. It immediately begins
sending some of its water into the city's water
pipes at a rate of 150 gallons per minute.
a) How much-water will be in the water storage facility
in 25 minutes?
B.) write an equation to find the number of gallons,y,in the storage facility after x minutes.
Answer: See explanation
Step-by-step explanation:
a) How much-water will be in the water storage facility in 25 minutes?
Since the city water workers begin filling it at a rate of 500 gallons per minute, in 25 minutes they'll have filled:
= 500 × 25
= 12500 gallons
It immediately begins sending some of its water into the city's water pipes at a rate of 150 gallons per minutes. In 25 minutes, they'll have sent:
= 150 × 25
= 3750 gallons
Amount that'll be left in the tank will be:
= 12500 - 3750
= 8750 gallons
b. Write an equation to find the number of gallons,y,in the storage facility after x minutes. This will be:
y = (500 × x ) - (150 × x)
y = 500x - 150x
y = 350x
Make three contrectic circles with radius is 2.4cm,3.8cm and 5.4cm
Answer:
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h=l/l-2k make k the subject
Answer:
[tex]k=\dfrac{l(h-1)}{2h}[/tex]
Step-by-step explanation:
The given equation is :
[tex]h=\dfrac{l}{l-2k}[/tex] ....(1)
We need to find the value of k.
Cross multiplying equation (1)
[tex]h(l-2k)=l\\\\hl-2hk=l\\\\hl-l=2hk\\\\k=\dfrac{l(h-1)}{2h}[/tex]
So, the value of k is equal to [tex]\dfrac{l(h-1)}{2h}[/tex].
Pls help me grades close today I will brainlest
Which graph represents the function ƒ(x) = 3|x – 1|?
Answer choices are on the pictures above
Answer:
C
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
Convert the
following 35 minutes to seconds
Answer:
2,100 sec
Step-by-step explanation:
Answer:
2100seconds
Step-by-step explanation:
♪＼(*＾▽＾*)／＼(*＾▽＾*)／
Which statement is true about the angle bisectors of a triangle?
Answer:
Follows are the solution to the given question:
Step-by-step explanation:
There are missing details, which is why its solution is as follows:
When an angle bisector points so, its two sides of the corner are equidistant. Its corner bisector of a triangle angle is a straight line splitting its angle into two congruent directions. In such a single point, calling its incentives, follow three-angle engineers are required of its three triangle angles.
