Answer:
Today was your birthday and you got 80 gifts!! You decided to open 50 today and open the rest for tomorrow, howmanymuch gifts do you decide to leave for tomorrow??
Step-by-step explanation:
Which of the following equations are equivalent? Select three options. 2 + x = 5 x + 1 = 4 9 + x = 6 x + (negative 4) = 7 Negative 5 + x = negative 2
Answer:
Please mark me the brainliest
Step-by-step explanation:
The three equivalent equations are:
1. Negative 5 + x = negative 2
2. 2 + x = 5
3. x + 1 = 4
Explanation:
1. Negative 5 + x = negative 2 can be solved by adding 5 to both sides, which gives x = 3.
2. 2 + x = 5 can be solved by subtracting 2 from both sides, which gives x = 3.
3. x + 1 = 4 can be solved by subtracting 1 from both sides, which gives x = 3.
Therefore, the three equivalent equations are those where x = 3. The other equation, 9 + x = 6, can be solved by subtracting 9 from both sides, which gives x = -3, and is not equivalent to the other three equations. Similarly, x + (negative 4) = 7 can be solved by adding 4 to both sides, which gives x = 11, and is also not equivalent to the other three equations.
Skip designs tracks for amusement park rides. For a new design, the track will be elliptical. If the ellipse is placed on a large coordinate grid with its center at (0, 0), the equation x^2/3600+y^2/8100=1 models the path of the track. The units are given in yards. How long is the major axis of the track? Explain how you found the distance. please show your work!!!!
Answer: The length of the major axis is given by
(x^2/3600+y^2/8100)=1
The equation shows x^2/3600+y^2/8100=1. This equates to x=3600 and y=8100. We can also see that x=3600 yards, but y=8100 yards. The distance between these two points is therefore 3600 yards or about 467 meters.
Step-by-step explanation:
A composite figure is shown.
A five-sided figure with two parallel sides. The shorter one is 18 meters. The height of the figure is 12 meters. The portion from the vertex to the perpendicular height is 7 meters. The portion from a point to a vertical line created by two vertices is 5 meters.
Which of the following represents the total area of the figure?
288 m2
360 m2
416 m2
576 m2
Answer: 288
I took the exam! goodluck
A local hotel manager uses the equation y=115x
to determine the cost for extended hotel stays, where x is the number of days. What is the constant of proportionality?
Complete the table.
Pages
Minutes
(Type whole numbers or decimals.)
10
10
15
15
(WILL GIVE BRAINLIEST)
Edgar measures the temperature of a solution at the beginning of an experiment to be 23°F. He monitors the temperature of the solution every minute for 10 minutes. He records the change in temperature from his previous reading. His data show a decrease of 2°F four times, a decrease of 3°F three times, no temperature change two times, and an increase of 6°F once.
(a) Write an expression that represents the average change in temperature each minute.
(b) Edgar repeats the experiment and finds the average change in temperature each minute is greater in the second trial than in the first trial. What is the average change in temperature each minute in the second trial of the experiment? Show your work.
Answer:
To find the average change in temperature each minute in the first trial of the experiment, we need to add up all of the temperature changes Edgar recorded and divide by the number of temperature changes he recorded. We can represent this with the following expression:(2 degrees F x 4) + (3 degrees F x 3) + (0 degrees F x 2) + (6 degrees F x 1) / 10 temperature changes= 8 degrees F + 9 degrees F + 0 degrees F + 6 degrees F / 10 temperature changes= 23 degrees F / 10 temperature changes= 2.3 degrees F/minute This means that the average change in temperature each minute in the first trial of the experiment was 2.3 degrees F.To find the average change in temperature each minute in the second trial of the experiment, we need to determine the average change in temperature each minute in the second trial. This value will be greater than 2.3 degrees F, since the average change in temperature each minute was greater in the second trial than in the first trial. However, we do not have any information about the specific temperature changes Edgar recorded in the second trial, so it is not possible to calculate the average change in temperature each minute in the second trial.
Answer:
To find the average change in temperature each minute in the first trial of the experiment, we need to add up all of the temperatures changes Edgar recorded and divide by the number of temperature changes he recorded. We can represent this with the following expression:(2 degrees F x 4) + (3 degrees F x 3) + (0 degrees F x 2) + (6 degrees F x 1) / 10 temperature changes= 8 degrees F + 9 degrees F + 0 degrees F + 6 degrees F / 10 temperature changes= 23 degrees F / 10 temperature changes= 2.3 degrees F/minute This means that the average change in temperature each minute in the first trial of the experiment was 2.3 degrees F. To find the average change in temperature each minute in the second trial of the experiment, we need to determine the average change in temperature each minute in the second trial. This value will be greater than 2.3 degrees F since the average change in temperature each minute was greater in the second trial than in the first trial. However, we do not have any information about the specific temperature changes Edgar recorded in the second trial, so it is not possible to calculate the average change in temperature each minute in the second trial
Step-by-step explanation:
so basically what the other guy said
hallo. i need halp. p|z & thank u.
(SCREENSHOT)
("WARNING": 7TH GRADE SLOPE)
The slopes of the lines are:
1. 1/2
2. 2
3. -1/2
4. 0
What is a slope?The slope or gradient of a line in mathematics is a numerical representation of the steepness and direction of the line.
To find the slope;
m = (y₂- y₁) / (x₂ - x₁)
1. The slope of the line that passes through the points (0, 3) and (2, 4):
The slope (m) of the line passing through the points (0, 3) and (2, 4):
m = (4 - 3) / (2 - 0)
m = 1 / 2
2. As per the table, the slope of the line that passes through the points (-1, -12) and (5, 0):
The slope (m) of the line passing through the points (-1, -12) and (5, 0):
m = (0 +12) / (5 + 1)
m = 2
3. To find the slope of the line that passes through the points (2, -6) and (-4, -3):
The slope (m) of the line passing through the points (2, -6) and (-4, -3):
m = (-3 + 6) / (-4 - 2)
m = -1/2
4. To find the slope of the line that passes through the points (1, 1) and (2, -1):
The slope (m) of the line passing through the points (1, 1) and (2, -1):
m = (-1 -1) / (2 - 1)
m = 0
To learn more about the slope;
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Please help me out on this
Answer:
-21+8x+5p
Step-by-step explanation:
-12+11x+9p-3x-4p-9=?
rearrange to combine like terms in next step
-12-9+11x-3x+9p-4p
combine like terms
-21+8x+5p
-21+8x+5p is your answer, hope this helps!
pls help with this question
Answer:
The printer will print 100 pages in 15 minutes.
Step-by-step explanation:
1. Set up a proportion
[tex]\frac{40 pages}{6 minutes} =\frac{xpages}{15minutes}[/tex]
2. Cross-multiply the proportion
[tex]40\times15=600\\6\times x =6x[/tex]
3. Set up the equation
[tex]6x=600[/tex]
4. Solve for x
[tex]6x=600[/tex]
Divide both sides by 6
[tex]x=100[/tex]
Therefore, the printer will print 100 pages in 15 minutes.
PLEASE HELP! WILL MARK BRAINLIEST!
Answer:
1) width = 10 + 2x
length = 20 + 2x
2) area = (10 + 2x)(20 + 2x)
= 4(5 + x)(10 + x)
3) 4(5 + x)(10 + x) = 600
(5 + x)(10 + x) = 150
50 + 15x + x^2 = 150
x^2 + 15x - 100 = 0
(x - 5)(x + 20) = 0
x = 5 feet
The width of the walkway is 5 feet.
What two numbers multiply to 20 and add up to -23
Answer:
4 x 5 = 20 - 43 = 23
Step-by-step explanation:
help pls ill give 16 point bc im running low
Answer: 6 1/8
Step-by-step explanation:
7-1=6
Pls solve and show each step
Option (A) The first theme park had about 5 times as many guests than the second.
Step-by-step explanation:Number of guests in the First Theme Park = 2 * 10^7
= 2 * 10 * 10 * 10 * 10 * 10 * 10 * 10
= 20 * 100 * 100 * 100
= 2000 * 10000
= 20000000
Number of guests in the Second Theme Park = 4 * 10^6
= 4 * 10 * 10 * 10 * 10 * 10 * 10
= 4 * 100 * 100 * 100
= 400 * 10000
= 4000000
Now we can observe that, the number of guests in the First Theme Park is more than the number of guests in the Second Theme Park.
Let’s start dividing to find how many times the First Theme Park has more guests than the Second Theme Park.
Number of guests in the First Theme Park = 20000000
Number of guests in the Second Theme Park = 4000000
Number of times, the First Theme Park has more guests than the Second Theme Park = 20000000/4000000
= 2000000/400000
= 200000/40000
= 20000/4000
= 2000/400
= 200/40
= 20/4
= 5 times
Hope my answer helps you.
:)
Please mark my answer as the BRAINLIEST. Plssssssssssssssssssss
Use your equation to determine the initial cost to the company, in dollars.
Initial cost to the company $ __
(The equation is c=5.25t-75.)
Answer: The initial cost to the company is $-75.
Step-by-step explanation:
To determine the initial cost to the company using the equation provided (c = 5.25t - 75), we need to understand what each variable represents:
c: The cost to the company in dollarst: The time (usually measured in hours, days, or weeks)Since the initial cost refers to the cost at the beginning (t = 0), we can plug t = 0 into the equation and solve for c:
c = 5.25(0) - 75
c = 0 - 75
c = -75
In this context, the initial cost to the company is $-75. It might seem unusual for the cost to be negative; however, this could be interpreted as the company having an initial credit or saving of $75 before any time has been spent on the project. Please note that the specific interpretation of this negative value depends on the context of the problem and the real-world situation being modeled by the equation.
PLEASE HELP! WILL MARK BRAINLIEST!
Answer:
1) x^2-x-12
2) 3x
3)x^2-4x-12
4)x=10
5) total area 30, dimensions 3 by 10
Step-by-step explanation:
work and explanation in image
Answer:
1) x^2-x-12
2) 3x
3)x^2-4x-12
4)x=10
5) total area 30, dimensions 3 by 10
Step-by-step explanation:
PLS HELP ME IF YOUR GOOD AT MATH PLS
Answer:
Step-by-step explanation:
pls help with this question!
0.14285714285 as a fraction
The number 0.14285714285 can be expressed as the fraction [tex]1.4285714285 / (10^n - 1),[/tex]
We have,
To express the decimal number 0.14285714285 as a fraction, we can follow these steps:
Step 1:
- Let x be the decimal number.
x = 0.14285714285
Step 2:
- Let's multiply both sides of the equation by 10^n, where n is the number of decimal places in the repeating part of the decimal.
[tex]10^n \times x = 10^n \times 0.14285714285[/tex]
Step 3:
- Subtract the original equation from the equation obtained in Step 2 to eliminate the repeating part.
[tex]10^n \times x - x = 10^n \times 0.14285714285 - 0.14285714285[/tex]
Simplifying this equation, we have:
[tex](10^n - 1) \times x = 1.4285714285[/tex]
Step 4:
- Divide both sides of the equation by (10^n - 1) to solve for x.
[tex]x = 1.4285714285 / (10^n - 1)[/tex]
Thus,
The number 0.14285714285 can be expressed as the fraction [tex]1.4285714285 / (10^n - 1),[/tex]
Where n represents the number of decimal places in the repeating part of the decimal.
Learn more about fractions here:
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pls help with these questions!
Francisco wants to find the product of 382 trays of apples and the 18 apples that fit in each tray. He decides to find the answer by breaking 18 into equal parts: 9 and 9. He says that if he multiplies 382 by 9 and then multiplies the product by 9 again, he can find the answer.
Will Francisco’s strategy work? Why or why not?
Answer:
Please mark me the brainliest
Step-by-step explanation:
Yes, Francisco's strategy will work.
Breaking 18 into 9 and 9 means that he is using the distributive property of multiplication, which states that a(b+c) = ab + ac. In this case, he is breaking 18 into 9 and 9, so he can rewrite the product of 382 trays and 18 apples as:
382 trays x (9 apples + 9 apples)
Using the distributive property, this can be expanded as:
(382 trays x 9 apples) + (382 trays x 9 apples)
This simplifies to:
3,438 trays x 9 apples
Which gives the correct answer of 30,942 apples. Therefore, Francisco's strategy works because he correctly applied the distributive property of multiplication to break down the problem into simpler parts.
Find the domain and range of the
radical function: f(x)= -√x +1
(radical is only over the x and NOT over the 1).
1. x≤ 0 and y> 1
2. x>0 and y < 1
3. x ≥ 0 and y≤ 1
4. x>0 and y≥ 1
f(x)= -√x +1x4 which would give you 99
Nina earns $12.50 per hour. Write and solve an inequality to determine the number of hours Nina must work in a week to earn at least $250. Then interpret the solution. Explain your reasoning.
The equation for the relationship between the amount he earns and the number of hours he tutors is represented as follows:
y = 12.5x
Nico earns $12.50 per hour as a math tutor.
The relationship between the amount he earns and the number of hours he tutor is a proportional relationship.
Therefore,
let the variable be x and y
where
x = number of hours
y = amount he earns
Therefore,
y = kx
where
k = constant of proportionality
The equation for the relationship is represented as follows:
y = 12.5x
What type of distribution is pictured in this histogram?
Skewed
Normal
Bimodal
Answer: That is a normal distribution
There is only the answer for area. I need to find both area and perimeter.
thankss.
Find three solutions to the equation.
y=x
Answer:
Step-by-step explanation:
Choose any value for
x
that is in the domain to plug into the equation.
Choose
0
to substitute in for
x
to find the ordered pair.
Tap for more steps...
(
0
,
0
)
Choose
1
to substitute in for
x
to find the ordered pair.
Tap for more steps...
(
1
,
1
)
Choose
2
to substitute in for
x
to find the ordered pair.
Tap for more steps...
(
2
,
2
)
These are three possible solutions to the equation.
(
0
,
0
)
,
(
1
,
1
)
,
(
2
,
2
)
Answer:Choose any value for
x
that is in the domain to plug into the equation.
Choose
0
to substitute in for
x
to find the ordered pair.
Tap for more steps...
(
0
,
0
)
Choose
1
to substitute in for
x
to find the ordered pair.
Tap for more steps...
(
1
,
1
)
Choose
2
to substitute in for
x
to find the ordered pair.
Tap for more steps...
(
2
,
2
)
These are three possible solutions to the equation.
(
0
,
0
)
,
(
1
,
1
)
,
(
2
,
2
)
Step-by-step explanation:
pls help with this question!!!!!
Answer: 2
Step-by-step explanation:
4/2 = 2
Please help answer the question below - As Soon As Possible...
(I am running out of time and have to much to do)
Thank You in advance.
Please Answer! Brainliest waiting for you
The population of the West was about 53 million in 1990. The population of this area increased an average of about 1 million a year during the 1990s. What is the equation?
Answer:
Let P be the population of the West in a certain year, and t be the number of years after 1990.
Since the population increased by about 1 million a year during the 1990s, we can model the population as:
P = 53 + 1t
where 53 represents the population of the West in 1990 and 1 represents the average increase in population per year.
So for example, in 1992 (two years after 1990), the population of the West would be:
P = 53 + 1(2) = 55 million
Similarly, in 1995 (five years after 1990), the population of the West would be:
P = 53 + 1(5) = 58 million
And so on for any year t after 1990.
tan theta = (23/52) what is the theta help
Answer:
Step-by-step explanation:
Answer:
The law of Tangent which is also called as tangent formula or tangent rule is the ratio of the sine of the angle to the cos of the angle. Tan Θ = Opposite / Adjacent.
Step-by-step explanation:
Can anyone help me solve this? I think I’ve done something wrong. Ignore the doodle marks that weren’t erased properly, by the way.
Answer:
The answer for
x=3/4
y=3/2
Step-by-step explanation:
let bigger number be x
let the smaller number be y
x+y=3¾
x+y=15/4
x=15/4-y
x+1/2=2/3y
x+1/2=2y/3
15/4-y=2y/3
C.LT.
-y-2y/3= -15/4
-3y-2y/3= -15/4
-5y/3= -15/4
-5y×4=3×-15
-20y= -45
divide both sides by-20
-20y/-20= -45/-20
y=9/4
x+y=15/4
x=15/4-y
x=15/4-9/4
x=6/4
x=3/2
