Answer:
x=19
Step-by-step explanation:
Because the angle Y and X are on parallel lines then if you add Y to X you would get 180 so we know that part of Y is 90.
90+2x+3x-5=180
85+5x=180
5x=95
x=19
The daily high temperatures for Barrow, Alaska, are shown in the table below. November 29 -5.2. November 30- 3, December 1. -1.5, December 2nd -3.3, December 3rd -3.8, December 4th -9.2 What was the mean (average) temperature for Barrow, Alaska, for November 29 through December 4?
Answer:
The answer is -4.3
Step-by-step explanation:
You need to add all of the temperatures together then divide it by the amount of temperatures.
All of the temperatures equal -26
You divide by the amount of temperatures which is 6
8th grade math i mark as brainliest
A pair of boots was originally priced at $200. The store put them on sale for 25% off. A month later, the
boots were reduced an additional 50% off the previous sale price. What is the price now?
Answer:
$75
Step-by-step explanation:
Answer:
$28.83
Step-by-step explanation:
We will use: \(\frac{part}{whole}=\frac{percent}{100}\) and then use cross multiplication.
Let's solve the first sale
We have:
percent = 25%
whole = $200
we want to solve for "part". Lets set the equation up before we plug anything in
\(part*100=percent*whole\)
\(part = (\frac{percent*whole}{100} )\)
now plug everything in:
\(part = (\frac{25*200}{100} )\)
part = $50
what does this mean?
Well it actually means $50 is the amount of money we take away from our original price of $200.
So we subtract that from our total.
$200 - $50 = $150
Next we will do the second sale.
percent = 50%
whole = $150
Use the same equation as above:
\(part = (\frac{50*150}{100} )\)
part = $75
Answer:
$75.00
Step-by-step explanation:
Dylan and Tiffany each constructed a two-color spinner. Dylan spun his spinner 3 times and calculated that the
relative frequency of his spinner landing on blue (0.67) and on red (0.33). Tiffany spun her spinner 200 times
and calculated the relative probability of her spinner landing on blue (0.60) and on red (0.40).
How can Dylan's and Tiffany's calculations be used to evaluate the fairness of the two spinners?
Answer:
You can calculate the likeliness of the spinner landing on blue or red as the more spins you have the more accurate the results would be. In this case after 200 spins Tiffany calculated that the spinner landing on blue has a 60% chance while landing on red has a 40% chance. Therefore this might not be fair as there is a 60% chance landing on blue.
Step-by-step explanation:
Let the side length of each small square on the grid represent 12 unit. Draw two different triangles, each with base 512 units and area 1914 units2. Why does each of your triangles have area 1914 units2? Explain or show your reasoning.
Answer:20
Step-by-step explanation:
i'm sorry if it's not
Sandy used a virtual coin toss app to show the results of flipping a coin 80 times, 800 times, and 3,000 times. Explain what most likely happened in Sandy's experiment.
Choice A: Sandy's experimental probability was exactly the same as the theoretical probability for all three experiments.
Choice B: Sandy's experimental probability was closest to the theoretical probability in the experiment with 80 flips.
Choice C: Sandy's experimental probability was closest to the theoretical probability in the experiment with 800 flips.
Choice D: Sandy's experimental probability was closest to the theoretical probability in the experiment with 3,000 flips.
As the number of coin flips increases, the experimental probability should get closer and closer to the theoretical probability. This is known as the law of large numbers. Therefore, it is most likely that Sandy's experimental probability was closest to the theoretical probability in the experiment with 3,000 flips, as this is the largest sample size. The correct answer is Choice D: Sandy's experimental probability was closest to the theoretical probability in the experiment with 3,000 flips.
How far did I travel to reach my destination on each day of my three-day Trip?
a. On Day 1, after traveling 5/8 of the way to the first day's destination, I still had 15 miles left to go before reaching my first destination.
b. On Day 2, after traveling 18 miles, I still had 2/5 of that day's distance left to go before reaching my second destination.
c. On Day 3, after traveling 5/11 of that day's distance, I still had 6 more miles to travel than what I had already traveled that day, before reaching my third destination.
The total distances you traveled to reach your destination on each day of your three-day trip are as follows:
a) Day 1 = 40 miles
b) Day 2 = 30 miles
c) Day 3 = 11 miles.
How the total distances are determined:The total distances are determined using proportions.
Proportion refers to the fractional value of the whole number or quantity.
a) Day 1:
The fractional distance traveled = ⁵/₈
The remaining distance to travel = 15 miles
15 miles = ³/₈ (1 - ⁵/₈)
Proportionately, the total distance = 40 miles (15 ÷ ³/₈)
b) Day 2:
The distance traveled = 18 miles
The remaining distance to travel = ²/₅
The distance traveled = ³/₅ (1 - ²/₅)
³/₅ = 18 miles
Proportionately, the total distance = 30 miles (18 ÷ ³/₅)
c) Day 3:
The distance traveled = ⁵/₁₁
The distance to travel = 6 miles
The distance to travel in fractions = ⁶/₁₁ (1 - ⁵/₁₁)
Proportionately, if 6 miles = ⁶/₁₁, the total distance = 11 miles (6 ÷ ⁶/₁₁)
Learn more about proportions at https://brainly.com/question/1496357.
#SPJ1
15 points to whoever answers this!!
Answer:
\(\frac{16}{27}\)
Step-by-step explanation:
From the table, we notice that the total number of students is:
\(3+10+8+6=27\)
Then, along the second column of the table, we notice that the number of students who do not have a brother is:
\(10+6=16\)
So, the probability that a randomly chosen student does not have a brother is:
\(\frac{\text{number of students who do not have a brother}}{\text{total number of students}}=\frac{16}{27}\)
A _________ is how data values are arranged.
a) center
b) data distribution
c) statistical question
d) variability
Answer: I think its a
Step-by-step explanation:
A coordinate grid with 4 lines. Line A passes through (0, 5) and (4, 3.75). Line B passes through (3.75, 0) and (0, negative 5). Line C passes through (0, negative 5) and (negative 3.75, 0). Line D passes through (negative 3.75, 0) and (0, 5).
Which line represents the linear equation
–3y = 15 – 4x?
The equation –3y = 15 – 4x rewritten in slope-intercept form is
Answer:
C
Step-by-step explanation:
im pretty sure
Answer:
9
Step-by-step explanation:
HELP ASAP Graph the solution set of a/2+5>4. Show your work.
Answer:
a>-2
Step-by-step explanation:
a/2+5>4
-5 | -5
a/2>-1
*2 | *2
a>-2
Answer:
\(\boxed{\sf{a > -2}}\)Step-by-step explanation:
To solve this problem, isolate it on one side of the equation.
Given:
Isolate the term of a.Solutions:
First, you subtract by 5 from both sides.
\(:\Longrightarrow \sf{\dfrac{a}{2}+5-5 > 4-5}\)
Solve.
4-5=-1
\(\Longrightarrow: \sf{\dfrac{a}{2} > -1}\)
Then, you multiply by 2 from both sides.
\(\Longrightarrow: \sf{\dfrac{2a}{2} > 2\left(-1\right)}\)
Solve.
Multiply these numbers goes from left to right.
2(-1)=-2
\(\Longrightarrow: \boxed{\sf{a > -2}}\)
Therefore, the solution is a>-2, which is the correct answer.I hope this helps, let me know if you have any questions.
What is 81/50 as a mixed number?
Answer:
1 31/50
Step-by-step explanation:
there is one set of 50 and the remaining it 31 :)
Giving away 60 points, answer quick!!
What is the exact circumference of the circle?
Responses
10π ft
20π ft
40π ft
60π ft
Answer:
40π ft. is the circumference of the circle.
Step-by-step explanation:
1. Multiply the area by two (2). That is your answer.
Hope this works out for you!! :)
Please help im not good at math :(
Questions 1 and 4
Please help ASAP bc it is due tmr
Answer: explanation
Step-by-step explanation:
I am unsure about number 1, but for number 4, you have to fund the unit rate.
Answer:
Answer for Number 1: 54 1/2
Answer for Number 4: $2.36
Step-by-step explanation:
Explanation for number 1:
1. length x width = area right? So area divided by length = width!
159 3/8 divided by 18 3/4 = 8 1/2
2. width + width + length + length = perimeter right? Now you know the
width, you can do...
8 1/2 + 8 1/2 + 18 3/4 + 18 3/4 = 54 1/2
Explanation for number 4:
1. You know that 4 cup = 1 quart right?
9.44 = 1 quart
2. So you divide it:
9.44 / 4 = $2.36
Pls help No links pls
Answer:
C. 50%
Step-by-step explanation:
Because both of them are shaded in only half and if you put both the shaded trinagles in one square it would be 50%
What is the domain and range of:
Answer:
b
Step-by-step explanation:
how it works with life
The base of the pyramid below is a square that has an area of 64 square inches.
Suppose that the pyramid is sliced so that the cross-section is a square with an area of 49 square inches.
How can you slice the pyramid to get that square?
Answer:
If you sliced the pyramid parallel to the base, the cross-section would be shaped like a square
Answer:
Slice it parallel to the base
Step-by-step explanation:
Which has a higher asymptote?
Answer: B
I don't know if it's right but I tried
What Values of X Makes these equations true?
Label Them as
1.
2.
Answer: your answer is answer
Step-by-step explanation; the physics of the calculations say you are not einstien.
Can you help me with this?
Sarah wants to predict how many t-shirts your homeroom will sell. She wants to compute the mean number of T-shirts sold by the other homerooms to do this.
Explain how the other homerooms' data support David's claim.
PLEASE HELP QUICK. THIS IS A TEST.
u can add 10 plus 8 u can get 18 or if u get other number u wrong
PLease solve it as fast has you can
Answer:
\(f^{-1}\left(f(576)\right)=\boxed{576}\)
\(f^{-1}(-7)+f(-7)=\boxed{13}\)
Step-by-step explanation:
The inverse of an invertible function with the domain of all real numbers is obtained by reflecting the original function across the line y = x, which swaps the input and output values of the function. Therefore, (x, y) → (y, x).
Given table:
\(\begin{array}{lrrrrrr}\vphantom{\dfrac12}x&-7&11&-13&6&5&-9\\\cline{1-7}\vphantom{\dfrac12}f(x)&7&12&8&-7&13&5\end{array}\)
Inverse function:
\(\begin{array}{lrrrrrr}\vphantom{\dfrac12}x&7&12&8&-7&13&5\\\cline{1-7}\vphantom{\dfrac12}f^{-1}(x)&-7&11&-13&6&5&-9\end{array}\)
If we have a function f(x), the inverse function is denoted as f⁻¹(x), and it has the property that f⁻¹(f(x)) = x for all valid inputs x in the domain of f(x).
Therefore:
\(\large\boxed{f^{-1}\left(f(576)\right)=576}\)
The value of f(-7) is the value of f(x) when x = -7. Therefore, reading from the original table, f(-7) = 7.
The value of f⁻¹(-7) is the value of f⁻¹(x) when x = -7. Therefore, reading from the inverse function table, f⁻¹(-7) = 6.
Therefore:
\(\large\boxed{\begin{aligned}f^{-1}(-7)+f(-7)&=6+7\\&=13\end{aligned}}\)
i think this is the last one oh well the hot air balloon is about 4 mi. away from the landing strip how many yards away is it- thanks so much!
Answer:
7040 yards
Step-by-step explanation:
There are 1760 yards in 1 mile. 1760x4=7040
For every 25 litres of petrol a car can run for 60 km.
How much petrol do you need (to 1 DP) to ensure the car has enough petrol of a trip that is 105 km?
Answer:
43.75 litters of petrol
Step-by-step explanation:
105/60 = 1.75
1.75(25) = 43.75
I need this answered please . . .
Which of the following are equivalent to 9 inches by 3 inches?
8 inches by 2 inches
10 inches by 4 inches
13.5 inches by 4.5 inches.
Pls help me, thank you.
Answer:
should be C
Step-by-step explanation:
Consider the linear function that is represented by the equation y = 4 x + 5 and the linear function that is represented by the table below.
x
y
2
16
4
26
6
36
8
46
Which statement is correct regarding their slopes and y-intercepts?
The function that is represented by the equation has a steeper slope and a greater y-intercept.
The function that is represented by the equation has a steeper slope, and the function that is represented by the table has a greater y-intercept.
The function that is represented by the table has a steeper slope, and the function that is represented by the equation has a greater y-intercept.
The function that is represented by the table has a steeper slope and a greater y-intercept.
Answer:c
Step-by-step explanation:
c
Answer:
D
Step-by-step explanation: I took the test
The composite figure is made up of three simpler shapes. What is the area of the figure?
A. 80
B. 49
C. 68
D. 74
Answer: I’m pretty sure it’s 80
Step-by-step explanation:
Because the very top triangle is 4x3 which is 12 then the rectangle under it is 6x3 which is 18 then the triangle under that is 5x3 which is 15 and the triangle on the left is also 15 and the square in the middle is 4x5 which is 20 and add it all up 12+18+15+15+20=80 sry if that’s confusing.
Answer:
74 is the answer
Step-by-step explanation: You should find the area of each shape and add all the areas together to get the full area of the shape.
(base x height)+(length x breath)+(1/2 x base x height)
(10x5)+(6x3)+(1/2x3x4)
50+18+6
74 ← this is the full area of the shape
and, remember when finding the area of a triangle you should always multiply 1/2 too for example- ( 1/2 x base x height )
PLS HURRY Which equation represents a proportional relationship?
A y = 1/2x
B y = 1/2x + 2
C y = 1/2x + 1
D y = 1/2x + 1/2
Answer:B IS CORRECT
Step-by-st
What is a possible reason for choosing the survey question "If you had one superpower what would it be"