Answer:
Yes, the two expressions are equivalent
The given expression 7y - 15 + 2y and 9y - 15 are equivalent.
What is equivalent expression?
Two algebraic expressions are said to be equivalent if their values obtained by substituting the values of the variables are same, even they look different.
According to the given question.
We have two expressions
[tex]7y - 15 + 2y ...(i)[/tex]
And, [tex]9y - 15 ...(ii)[/tex]
The expression (i) can be written as
[tex]7y - 15 + 2y[/tex]
[tex]=(7y + 2y)-15[/tex] (adding the like terms)
[tex]= 9y -15[/tex]
Hence, the given expression 7y - 15 + 2y and 9y - 15 are equivalent.
Find out more information about equivalent expression here:
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Shannon’s bicycle travels 40 feet for every 3 pedal turns. How many pedal turns are needed to travel one mile (1 mile = 5,280 feet) please help and ill give you brainliest
-4M = 48 What would you do to each side of the equation?
Pls responddd
Answer:
divide by - 4
Step-by-step explanation:
Given
- 4M = 48 ( isolate M by dividing both sides by - 4 )
M = - 12
ahhhhhahh please help marking brain list
Answer:
Subtracts 12-4
Step-by-step explanation:
3x+4=12
you will move 4 to the other side to make it 12-4 it is minus because the sign changes when you move it.
three times a number subtracted by 3 is 20
Answer:
3x - 3 = 20
Step-by-step explanation:
Times is a word that represents multiplication. A number can be represented by x.
3x - 3 = 20
Solving this:
3x - 3 = 20 1. Add 3 on both sides
3x = 23 2. Divide by 3 on both sides
x = 7 2/3
which number has a square root between 3 and 4
Answer:
12.25 is one possible number but any number between 9 and 16 works (although the square root may not always be a whole number)
Step-by-step explanation:
A number between 3 and 4 is 3.5.
3.5² = 12.25
I neeeeeeeeeeedddd help plzzzzzzzzzzzz
Will give points :) :) .
EBC = 23°
180 - (46+111) = 23
Answer:
It 23:)
Step-by-step explanation:
good luck
solve the following for x 4(x+2) = 6x
Answer:
x = 4
Step-by-step explanation:
Answer:
x=4
Step-by-step explanation:
4(x+2)=6x
distribute 4:
4x+8=6x
Subtract 4x from each side:
8=2x
Divide both sides by 2:
x=4
This is my last 8th grade problem, again if you know the answer please interact :)
Answer:
same slope
parallel lines
Step-by-step explanation:
Formúla General
a) 4x²=9x-2=0
b) X²+8x-84=0
Answer: a) [tex]x=\dfrac{-9 \pm\sqrt{113} }{8}[/tex]
b) x₁ = - 14; x₂ = 6.
Step-by-step explanation:
a) 4x² + 9x - 2 = 0
[tex]x=\dfrac{-b \pm \sqrt{b^{2}-4ac } }{2a} \\\\a=4; \: \: b=9; \: \: c=-2\\x =\dfrac{-9 \pm \sqrt{9^{2}-4 \cdot 4 \cdot (-2) } }{2 \cdot 4} =\dfrac{-9 \pm\sqrt{113} }{8}[/tex]
b) x² + 8x - 84 = 0
[tex]x=\dfrac{-b \pm \sqrt{b^{2}-4ac } }{2a} \\\\a=1; \: \: b=8; \: \: c=-84\\\\x =\dfrac{-8 \pm \sqrt{8^{2}-4 \cdot 1 \cdot (-84) } }{2 \cdot 1} =\dfrac{-8 \pm\sqrt{400} }{2}=\dfrac{-8 \pm 20}{2} =-4 \pm 10\\\\x_{1} =-14\\x_{2} =6[/tex]
✓
(4x2 + 2x + 1) + (3x2 + 4x + 1)
yes its correct you're very smart
the sum of a number and 6 is the same as the number times 11.
Answer:
x = 3/5
Step-by-step explanation:
2) The cost of gasoline is directly proportional to the number of gallons of gasoline purchased. Ms. Butcher paid $25.20 for 12 gallons of gas. If c represents the cost in dollars and grepresents the gallons of gas purchased, which equation best represents this relationship?
(a) c = 0.489
(b) c = 2.1g
(c) c = 25.20g
(d) c = 302.4g
Answer:
62/87,21
Write the rate of blue paint to yellow paint for each quart in simplest form.
The rates are not equal. So, the amount of yellow paint is not proportional to the amount of blue paint.
$16:(5
No; the rates are not equal.
62/87,21
Write the rate of ice tea mix to sugar for each quart in simplest form.
Each rate is equal to . So, the amount of sugar is proportional to the amount of ice tea mix.
$16:(5
Yes; each rate is equal to .
GASOLINE The cost of 13 gallons of gasoline is $41.47. Write an equation relating cost to the number of gallons of
gasoline. How much does 18.5 gallons of gasoline cost?
62/87,21
Find the constant of proportionality.
or 3.19
The cost is $3.19 times the number of gallons of gas, g. The equation is c = 3.19g.
To find the cost of 18.5 gallons of gas, substitute 18.5 for g.
18.5 gallons of gas cost $59.02.
$16:(5
c = 3.19g; $59.02
Determine whether the set of numbers in each table is proportional. Explain.
62/87,21
Write the rates of cans of concentrate to cans of water in simplest form
Each rate is equal to . So, the amount of cans of water is proportional to the amount of cans of concentrate.
$16:(5
Yes; each rate is equal to .
62/87,21
Write the rates of shaded squares to total squares in simplest form.
The rates are not equal. So, the number of total squares is not proportional to the number of shaded squares.
$16:(5
No; the rates are not equal.
62/87,21
Write the rates of junk e-mails to total e-mails in simplest form.
Each rate is equal to . So, the number of total e-mails is proportional to the number of junk e-mails.
$16:(5
Yes; each rate is equal to
62/87,21
Write the rates of weeks to days in simplest form.
Each rate is equal to . So, the number of days is proportional to the number of weeks.
$16:(5
Yes; each rate is equal to .
62/87,21
Write the rates of the heat index to air temperature.
The rates are not equal. So, the air temperature is not proportional to the heat index.
$16:(5
No; the rates are not equal.
62/87,21
Write the rates of jars to jelly beans in simplest form.
The rates are not equal. So, the number of jelly beans is not proportional to the number of jars.
$16:(5
No; the rates are not equal.
For Exercises 10 and 11, write and solve an equation.
FINANCIAL LITERACY A store is having a sale where all jeans are off the regular price. Write an equation
relating the sale price to the regular price. How much would a pair of $29 jeans cost on sale?
g
Cost
7g
6 7(6) = $42
7 7(7) = $49
8 7(8) = $56
9 7(9) = $63
10 7(10) = $70
$16:(5
yes
Complete each conversion. Round to the nearest hundredth, if necessary.
LQ§B cm
62/87,21
8VHLQ§FHQWLPHWHUV
$16:(5
10.16
/§ B gal
62/87,21
8VH/§JDO
$16:(5
1.32
OE§B kg
62/87,21
8VHOE§NJ
$16:(5
681
\G§ _ m
62/87,21
8VH\G§P
$16:(5
12.8
Express each rate as a unit rate. Round to the nearest tenth, if necessary.
140 miles on 6 gallons
62/87,21
The unit rate is 23.3 miles per gallon.
$16:(5
23.3 miles per gallon
19 yards in 2.5 minutes
62/87,21
The unit rate is 7.6 yards in 1 minute.
$16:(5
7.6 yards per minute
236.7 miles in 4.5 days
62/87,21
The unit rate is 52.6 miles per day.
$16:(5
52.6 miles per day
331.5 pages in 8.5 weeks
62/87,21
The unit rate is 39 pages per week.
$16:(5
39 pages per week
eSolutions Manual - Powered by Cognero Page 1
6-4 Proportional and Nonproportional Relationships
Determine whether the set of numbers in each table is proportional. Explain.
62/87,21
Write the rate of blue paint to yellow paint for each quart in simplest form.
The rates are not equal. So, the amount of yellow paint is not proportional to the amount of blue paint.
$16:(5
No; the rates are not equal.
62/87,21
Write the rate of ice tea mix to sugar for each quart in simplest form.
Each rate is equal to . So, the amount of sugar is proportional to the amount of ice tea mix.
$16:(5
Yes; each rate is equal to .
GASOLINE The cost of 13 gallons of gasoline is $41.47. Write an equation relating cost to the number of gallons of
gasoline. How much does 18.5 gallons of gasoline cost?
62/87,21
Find the constant of proportionality.
or 3.19
The cost is $3.19 times the number of gallons of gas, g. The equation is c = 3.19g.
To find the cost of 18.5 gallons of gas, substitute 18.5 for g.
18.5 gallons of gas cost $59.02.
Step-by-step explanation: sorry the answer is C
Please solve i will give brainliest
Answer:
Each item costs $6.46 dollars rounded to the nearest cent.
Step-by-step explanation:
All I did was divide 3133 divided by 482 is 6.45850622407.
But since this number is too big, I rounded it to the nearest cent.
So, the answer should be 6.46
Hope this helps! :)
Mrs. Trotta drives a total of 378 miles over 6 days. She drives the same amount of miles each day. How many miles does Mrs. Trotta drive each day?
6) A recipe serves 10 people and uses 3 cups of flour. How many cups of
flour is needed to serve 15 people? *
Answer:
4.5 cups
Step-by-step explanation:
what is the graph of y = x2 + 8x + 4?
A cable is 80 decimeters long. How long is the cable in meters?
Answer:
8 meters
Step-by-step explanation:
Not to be confused with decameters, a decimeter is 1/10 of a meter. 80÷10=8.
Answer:
The answer is 80/10=8
Find the slope of the line.
Answer:
Slope is 3
Step-by-step explanation:
Starting from the point (0,0) move up 3 and over 1. That gives you the slope of 3 over 1 or 3. Slope is rise over run.
I’ll give BRAINLEST I need this now though
The speed of light is about 300,000,000 meters per second. That's
about 3 * 10^8 meters per second. The speed of sound in dry air is
about 3 * 10^2 meters per second.
About how many times faster does light travel than sound in dry air?
Answer:
Light is about 299,999,700 mps (meters per second) faster than sound in dry air.
Step-by-step explanation:
We know that the speed of light is about 3 × 10 ^ 8 meters per second and that the speed of sound in dry air is about 3 × 10 ^ 2 meters per second. We need to solve 3 × 10 ^ 8 minus 3 × 10 ^ 2.
3 × 10 ^ 8 - 3 × 10 ^ 2 =
300,000,000 - 300 = 299,999,700
Light is about 299,999,700 mps (meters per second) faster than sound in dry air.
Answer: 3 x 10^2 m/s times 10^6 = 3 x 10^8 m/s
Step-by-step explanation:
PLEASE HELP
Which line segment is a radius of K?
A) EH
B) FG
C) DK
D) KH
Answer:
HE is the answer I think...no.a
The correct line segment which is a radius of О K is,
⇒ Radius = DK
What is mean by Line segment?Line segment is a part of the line which have two endpoints and bounded by two distinct end points and contain every point on the line which is between its endpoint.
We have to given that;
Circle with center K is shown in figure.
And, To find the line segment which shows the radius of Circle with center K.
Now,
By definition of circle of radius is,
⇒ FG = Chord of circle
⇒ EH = Diameter of circle
⇒ JI = Chord of circle
⇒ DK = Radius of circle
Hence, We get;
The correct line segment which is a radius of О K is,
⇒ Radius = DK
Therefore, We get;
The correct line segment which is a radius of О K is,
⇒ Radius = DK
Learn more aboput the line segment visit:
https://brainly.com/question/280216
#SPJ7
There are 5280 feet in one mile . How many feet are in 6 miles?
Answer:
31680
Step-by-step explanation:
5280x6=31680
in return can u pls answer myquestion?
the question: how many cubes with a dimension of 3 inches fit in a rectangular prism with dimensions of 2 1/2 feet by 1.25 feet
I need help with this pls
Answer:
if it a worksheet search the question online and the answer key comes up
Step-by-step explanation:
8, 12, 18, ... whats the 6th term.
Answer:
50
Step-by-step explanation:
Write an algebraic expression that can be used to show the total cost of bowling if each game cost $5 and shoe rentalis
$2
5+2x
Answer: 5n+2. 5×3+2=$. 15+2=$. 17=$.
Which is a better deal: 4 pounds of apples for $1 or 9.534
kilograms per dollar?
Answer:
9.534 kg per dollar is the better deal
Step-by-step explanation:
when you covert 9.534 kg to lb you'll get 21.019 pounds which is a much better deal than 4, and because 21>4
100 pts and brainliest
Name every one of vegetas techniques and skills
Need 2 know
Answer:
1. Powerful Lungs: In the anime, Vegeta has shown himself capable of surviving for extended periods of time in outer space, without the need of air, although it can be assumed that extended deprivation of air will eventually lead to his death. 2. Telekinesis– A technique that allows the user to manipulate objects …
Techniques
1. Saiyan Energy Attack- He charges up a blast in a fashion similar to a Finish Buster, and fires it at the opponent to inflict a large amount of damage. 2. Triple Blast – An anime only technique. Vegeta fires three yellow Ki Blasts from his left hand at the same time. He uses this attack on Perfect Cell. Named i…
Martial Arts Techniques
1. Exploding Wave- The user manipulates their ki to disrupt the planet's geomagnetic field. With a swift upwards motion of the hand, the user can create a massive atomic explosion that has the potential to cause an almost endless crater in the desired area. 2. Spirit Breaking Cannon- First, Vegeta punches the
Step-by-step explanation:
Answer:Forced Spirit Fission
Despite Moro's overwhelming power, Vegeta relentlessly continues his assault, during which his fellow Z-fighters realize that Vegeta is utilizing a new technique called Forced Spirit Fission. The technique creates the accumulation of energy in the sky above them.
can i get a owa owa
Step-by-step explanation:
I need help with number 5, and 6.
Please and thank you.
Answer:
5 - 1 year
6 - 738.92
Step-by-step explanation:
5: 260 = 250(1.04)^t
Divide both sides by 250, and we get 1.04. So t must be 1.
6: x + 45 = x(1.03)²
Solve to find x
100 POINTS
This table shows the value of a computer, based on its age.
Age of Computer
(years) Value
0
$550
1 $500
2
$425
3
$300
4
$275
5
$225
What is the association between the age and the value of the computer?
A.
There is a negative linear association.
B.
There is a positive linear association.
C.
There is a nonlinear association.
D.
There is no association.
A cell phone company charges $39.99 flat fee each month, plus $0.05 per minute. If m represents the number of minutes used in a month, which expression can be used to calculate a monthly payment?
39.99 + m
39.99 + m
0.05m + 39.99
0.05 m + 39.99
39.99m + 0.05
39.99 m + 0.05
0.05m
0.05 m
Answer:
Step-by-step explanation: A cell phone company charges $39.99 flat fee each month, plus $0.05 per minute. If m represents the number of minutes used in a month, which expression can be used to calculate a monthly payment?
39.99 + m
39.99 + m
0.05m + 39.99
0.05 m + 39.99
39.99m + 0.05
39.99 m + 0.05
0.05m
0.05 m