Answer:
20-d=y
Step-by-step explanation:
In the first week of July, a record 1,120 people went to the local swimming pool.In the second week, 100fewer people went to the pool than in the first week. In the third week,140 more people went to the pool than in the second week. In the fourth week, 208 fewer people went to the pool than in the third week. What is the percent decrease in the number of people who went to the pool over these four weeks?
Answer:
15%
Step-by-step explanation:
Given that:
Number of people who went to swimming pool in the first week = 1120
In second week, there are 100 fewer people, so
Number of people who went to swimming pool in the second week = 1020
In third week, there are 140 more people, so
Number of people who went to swimming pool in the third week = 1160
In fourth week, there are 208 fewer people, so
Number of people who went to swimming pool in the fourth week = 952
To find:
Percentage decrease in the number of people who went to the pool over the four weeks?
Solution:
Initial value = 1120
Final value = 952
Decrease in the value = Final value - Initial value
Decrease in the value = 1120 - 952 = 168
To find the percentage, we need to take the initial value in the consideration.
Therefore, percentage decrease is:
[tex]\dfrac{Decrease}{Initial\ value}\times 100[/tex]
[tex]\Rightarrow \dfrac{168}{1120}\times 100\\\Rightarrow \bold{15\%}[/tex]
Answer:
Step-by-step explanation:
What is the center of the circle x² + y2 - 4 = 0?
Answer:
(0,0)
Desmos graphing calculator is a great way to enter the formula of a circle and see a visual example.
Which polynomial represents the algebra tile configuration shown?
x2 + 3x + 4
x2 + 3x −
−x2 − 7
−x2 + 3x − 4
Answer: I’m pretty sure the answer is D. −x^2 + 3x − 4
Step-by-step explanation:
Answer:-x^2 + 3x - 4
Step-by-step explanation:
5(x - 1) and 5x - 1
is it equivalent
Answer:
no
Step-by-step explanation:
5(x - 1) = 5x - 5
5x - 1 = 5x - 1
No, it is not equivalent
The required, 5(x - 1) and 5x - 1 are not equivalent expressions.
Let's expand 5(x - 1):
5(x - 1) = 5 * x + 5 * (-1) = 5x - 5
On the other hand, 5x - 1 is already in its simplified form.
As you can see, the expressions 5(x - 1) and 5x - 1 have different forms. The first expression involves distributing the 5 to both terms inside the parentheses, while the second expression is already simplified and cannot be further combined.
For example, if we substitute x = 2 into both expressions, we get:
5(2 - 1) = 5 * 1 = 5
5 * 2 - 1 = 10 - 1 = 9
Since 5 and 9 are not equal, it confirms that the two expressions are not equivalent.
Learn more about equivalent expression here:
https://brainly.com/question/2515709
#SPJ6
You go for a run on monday you run 2.41Km on tuesday you ran the same distance how far did you ran altogether
Answer: 4.82 km
Step-by-step explanation:
You went for a run on Monday.
You then went on a run on Tuesday as well. On this day you ran 2.41 km and it is said that you ran the same distance on both days which means you ran for 2.41 km on Monday as well.
The total distance you ran is therefore:
= 2.41 + 2.41
= 4.82 km
Which expression is equivalent to -1/3(6x+15)?
Please help me :(
A) -2x+12
B)-2x+2
C)-2x-2
D)-2x-8
Answer:
-2x+5
Step-by-step explanation:
Bro the answer are wrong there should on more options of -2x+5
These is explainetation
-1/3 × 6x + -1/3 × 15 ( because -1/3 is multipled to whole bracket)
-2x + 5
Can someone help me with this question. Will mark brainliest.
Answer:
Choice 2
Step-by-step explanation:
Ask a friend or older sibling, they always have the answer (Not really)
Which operation should you do first when you simplify the expression below?
(15+4)x3
Answer:
I would assume you would use PEMDAS? thats what I would use
Answer:
Solve the parenthesis
Step-by-step explanation:
In the order of operations (PEMDAS), you would solve what's in the parenthesis first. So you would add 5 and 4, then multiply that by 3 to get the correct answer. Hope that helps!
Determine the solution to the system of equations.
3x - y = 9
2x - y = 6
Answer:
(3, 0)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityAlgebra I
Solving systems of equations using substitution/eliminationSolving systems of equations by graphingTerms/CoefficientsStep-by-step explanation:
Step 1: Define Systems
3x - y = 9
2x - y = 6
Step 2: Rewrite Systems
2x - y = 6
Subtract 2x on both sides: -y = 6 - 2xDivide -1 on both sides: y = 2x - 6Step 3: Redefine Systems
3x - y = 9
y = 2x - 6
Step 4: Solve for x
Substitution
Substitute in y: 3x - (2x - 6) = 9Distribute -1: 3x - 2x + 6 = 9Combine like terms: x + 6 = 9Isolate x: x = 3Step 5: Solve for y
Define equation: 2x - y = 6Substitute in x: 2(3) - y = 6Multiply: 6 - y = 6Isolate y term: -y = 0Isolate y: y = 0Step 6: Check
Graph the systems to verify the solution set (3, 0) is the solution.
The solution set to the systems would be where the 2 lines intersect.
We see that the intersection point is x-intercept (3, 0).
∴ (3, 0) is the solution set to the systems of equations.
isolate and solve for y
Step-by-step explanation:
subtract y from both sides than divide the x values from bothe sides
What percent of 65 is 13
Answer:
20 percent
Step-by-step explanation:
Just divide 100 by 65 and multiply that number by 13.
Answer:
20%
Step-by-step explanation:
This is the answer because:
1) Convert the fraction to a decimal, then multiply by 100:
13 x 100 ÷ 65 = 20
Therefore, the answer is 20%
Hope this helps! :D
Addison wants to ride her bicycle more than 80 miles this week. She has already ridden her Bicycle 18 miles. Write an algebraic inequality use to determine the average number of miles m she would need to ride her bicycle each day for six more days to achieve her goal?
Answer:
18 + 6m > 80
Step-by-step explanation:
We are told that:
Addison wants to ride her bicycle more than 80 miles this week.
The inequality representing this sign is given as > (greater than).
Let the number of miles be represented as= m
Hence:
She has already ridden her Bicycle 18 miles.
The algebraic inequality use to determine the average number of miles m she would need to ride her bicycle each day for six more days to achieve her goal is given as:
18 + 6 ×m > 80
18 + 6m > 80
100 POINTS AND BRAINLIEST
two paintings were sold were for $50 and $350. find the mean and the median
Mean :
Median:
At a gallery show, three paintings were sold for $250, $400, and $1,200.
Mean :
Median:
oil paintings have been sold for $410, $400, and $375.
Mean :
Median:
YOUR ANSWER WILL BE REPORTED IF YOU PUT NONSENSE
Answer:
Here, for example, is square inch pricing, using a multiplier of 2.5 (ie, $2.50 per square inch):
4×4 inches = 16 square inches x 2.5 = $40
8×8 inches = 64 square inches x 2.5 = $160
16×16 inches = 256 square inches x 2.5 = $640
24×24 inches = 576 square inches x 2.5 = $1,440
32×32 inches = 1,024 square inches x 2.5 = $2,560
I don’t know about you, but $40 seems awfully small price for a painting by someone who commands $2,560 for a 32×32 canvas.
Here are the same canvas sizes using linear inch pricing, using a multiplier of 20 (ie, $20.00 per linear inch) — as you can see, the difference in price feels a lot less out-of whack:
4+4 inches = 8 linear inches x 20 = $160
8+8 inches = 16 linear inches x 20 = $320
16+16 inches = 32 linear inches x 20 = $640
24+24 inches = 48 linear inches x 20 = $960
32+32 inches = 64 linear inches x 20 = $1,280
Neither of these pricing methods is “right” or “wrong,” but once you determine your method and your multiplier, charging by size can be a very helpful way to eliminate the guesswork, and feel confident about your pricing.
Different Pricing for Different Media?
One possible modifier to your size-based pricing structure is the media you paint with. If you only paint watercolors, or only paint oils, there’s no problem, but if you paint both on canvas and on paper, as I do, it gets a little tricky.
For whatever reason, paintings on paper tend to sell for less than paintings on canvas — even though they require framing, which is an added expense. In my case, if I were to pay to have a piece framed, my costs become much higher for a work on paper than for a canvas painting! What’s an artist to do?
(And remember that pricing your prints is an entirely different topic.)
I don’t have a final answer to this question, except to refer you to the item below…
Step-by-step explanation:
Answer:
Here, for example, is square inch pricing, using a multiplier of 2.5 (ie, $2.50 per square inch):
4×4 inches = 16 square inches x 2.5 = $40
8×8 inches = 64 square inches x 2.5 = $160
16×16 inches = 256 square inches x 2.5 = $640
24×24 inches = 576 square inches x 2.5 = $1,440
32×32 inches = 1,024 square inches x 2.5 = $2,560
I don’t know about you, but $40 seems awfully small price for a painting by someone who commands $2,560 for a 32×32 canvas.
Here are the same canvas sizes using linear inch pricing, using a multiplier of 20 (ie, $20.00 per linear inch) — as you can see, the difference in price feels a lot less out-of whack:
4+4 inches = 8 linear inches x 20 = $160
8+8 inches = 16 linear inches x 20 = $320
16+16 inches = 32 linear inches x 20 = $640
24+24 inches = 48 linear inches x 20 = $960
32+32 inches = 64 linear inches x 20 = $1,280
Neither of these pricing methods is “right” or “wrong,” but once you determine your method and your multiplier, charging by size can be a very helpful way to eliminate the guesswork, and feel confident about your pricing.
Different Pricing for Different Media?
One possible modifier to your size-based pricing structure is the media you paint with. If you only paint watercolors, or only paint oils, there’s no problem, but if you paint both on canvas and on paper, as I do, it gets a little tricky.
For whatever reason, paintings on paper tend to sell for less than paintings on canvas — even though they require framing, which is an added expense. In my case, if I were to pay to have a piece framed, my costs become much higher for a work on paper than for a canvas painting! What’s an artist to do?
(And remember that pricing your prints is an entirely different topic.)
I don’t have a final answer to this question, except to refer you to the item below…
Step-by-step explanation:
Can anyone please help me solve this??
Answer:
X=4 Y= -5
Step-by-step explanation:
A jar has 2 pennies, 5 nickels, 3 dimes, and 2 quarters. What is the probability of drawing a penny,
replacing it, and drawing another penny?
There is a 2 in 12 chance of drawing a penny
Step-by-step explanation:
Answer: 2/12
Step-by-step explanation:
There are 12 coins all together, and 2 pennies which means there is a 2/12 chance to draw a penny. Then they replace the penny and draw another time, so by replacing the penny the probability doesn't change and there is still a 2/12 chance of drawing a penny.
(3) Find the value of x.
Answer:
x=4
Step-by-step explanation:
since triangles are proportional by 2:1, then:
16/2=3x-4
8=3x-4
3x=12
x=4
PLEASE HELP ME
Will mark brainliest
Answer: Its the last one trust me
Step-by-step explanation:
A building has 15 floors of offices above
ground and 3 floors below ground. Lucy
parks on the 3rd floor below ground
and has an office on the 10th floor. The
ground floor is floor zero. How many
floors must she go up from her car to
her office?
Answer:
13 floors
Step-by-step explanation:
it says the ground floor is floor zero. she is 3 floors below the ground floor so you add 3+10 to get the amount of floors she has to go up to get to her office.
Write the coordinates of the vertices after a dilation with a scale factor of 5, centered at the origin.
Q (-2, -1)
Q' (___,___)
Answer:
Q' (-10, -5)
Step-by-step explanation:
Multiply each coordinate by the scale factor.
-2 · 5 = -10
-1 · 5 = -5
Therefore, Q' (-10, -5).
Item 6
Graph the solution of 4(7−x)<16.
Answer:
x>3
Step-by-step explanation:
4 • (7 - x) - 16 < 0
3.1 Pull out like factors :
12 - 4x = -4 • (x - 3)
-4 • (x - 3) < 0
4.1 Divide both sides by -4
4.2 Add 3 to both sides
x > 3
4.3 Inequality plot for
-4.000 X + 12.000 > 0
Michael read 135 pages in 90 minutes. Select all of the rates that have the same constant rate of change as Michael's rate. 180 pages in 2 hours 180 pages in 2 , hours 60 pages in 30 minutes 60 pages in 30 , minutes 108 pages in 212 hours 108 pages in 21 half , hours 150 pages in 1 hour 150 pages in 1 , hour 225 pages in 150 minutes 225 pages in 150, minutes 210 pages in 2 hour 20 minutes
Answer:
180 pages in 2 hours
225 pages in 150 minutes
210 pages in 2 hours 20 minutes
Step-by-step explanation:
135 pages : 90 minutes
= 135/90
= 3/2
= 3 : 2
180 pages : 2 hours
180 pages : 120 minutes
= 180/120
= 3/2
= 3:2
60 pages : 30 minutes
= 60/30
= 2/1
= 2:1
108 pages : 2 1/2 hours
108 pages : 180 minutes
= 108/180
= 18/30
= 3/5
= 3:5
150 pages : 1 hour
150 : 60
= 150/60
= 10/6
= 5/3
= 5:3
225 pages : 150 minutes
= 225/150
= 9/6
= 3/2
= 3:2
210 pages : 2 hours 20 minutes
210 pages : 140 minutes
= 210/140
= 3/2
= 3:2
3. Which number is a factor of 18. but not a multiple of 2? (10 Points)
Answer:
Three or nine
Step-by-step explanation:
answer pleaseesesese
Answer:
a
Step-by-step explanation:
its a bc a is the only one that is the answer
Determine the value b
Answer:
17
Step-by-step explanation:
6x7= 42
42 divided by 2 = 21
21 - 4 = 17
answer = 17
Can I get help with 3 through 5
Answer: 3 is -4
Step-by-step explanation:
Help me help me help me help me help me help meHint hint wink wink there’s more than one answer
The question is in the photo please answer if you’re sure !! Thank you so much !!
Answer:
x=3
Step-by-step explanation:
The equation here is x=3. If it were y=3, then it would be a horizontal line.
Otto is told the average low temperature in January is 16.1∘C cooler than the average low temperature in November. What equation can Otto use to find the average low temperature in January?
Answer:
x - 16.1°C
Step-by-step explanation:
Given that average low temperature in January is 16.1 cooler Than average low temperature in November
Let average low temperature in November = x
Since, average low temperature in January is cooler than average low temperature in November, then, January temperature is less Than in November
Hence,
Average low temperature in January :
[Average low temperature in November - 16.1°C]
(x - 16.1°C)
Find the length of the altitude drawn to the hypotenuse. please help
Answer:
12.6
Step-by-step explanation:
Please help me answer these 3 questions
Answer:
I never did this before but i am working on it ok
Step-by-step explanation:
Answer:
1.Her average score is 20
Step-by-step explanation:
8 + 9 + 13 = 30
-7 + -3 = -10
30 + -10 = 20
Answer:
2.$1.75
Peter signed up for a program that costs $10.50 per month to stream movies to his computer.
He decided to cancel his service after 5/6 month
So,has to pay for the amount of time he used the service:
$10.50 • 5/6 = $1.75 • 5 = $8.75
The amount of money peter has after paying for the service is
$10.50 - $8.75 = $1.75
Answer:
3.
All fruit is $0.80 per pound.Converting fractions to decimals, 1/8 = 0.125 and 1/4 = 0.25.We can multiply these decimals and 0.8 together to find the price paid for each fruit.When you do it correctly,here are your answer.
Apples:$0.10
Pears:$0.20
Bananas$1
Now, we can add those prices together to get $1.30.Maggie spent $4.05 total. We need to find out how much she spent on cheese.To find this amount, subtract both numbers.4.05 - 1.30 is 2.75.There. Maggie spent $2.75 on cheese.
How do you solve -2 = t/3 - 11?
______________________________
1.) Multiply both sides of the equation by 3:[tex]\frac{t}{3}[/tex] × [tex]3=t[/tex][tex]-11[/tex] × [tex]-3=-33[/tex]- We do this because we need to get x alone and separate from fraction from.
Equation at the end of Step 1:
[tex]-6=t-33[/tex]2.) Add 33 to both sides:[tex]-33+33=[/tex] Cancels Out[tex]-6+33=27[/tex]- We do this to cancel out an extra numbers in order to get only x alone with 1 number on the opposite side of the equal.
______________________________