For 20 shirts Eric has
20×2=40 ties
After shopping Eric has 50 shirts
So
20 shirts 50 shirts
40 ties x ties
[tex] \frac{20}{40} = \frac{50}{x} \\ x = \frac{50 \times 40}{20} \\ x = 100[/tex]
Answer: He would have 100 ties
2 wayIf he has 2 ties for 1 shirt he will have
2×20=40 ties for 20 shirts, so for 50 shirts ge would have
50×2=100 ties
Answer: He would have 100 ties
Answer
5 ties, as the equivalent ratio would be 50:5, meaning 50 shirt to 5 ties
Step-by-step explanation: What should have been recognized is that if 20 shirts align to 2 ties, that means that for every ten shirts you would have 1 tie. The ratio doesn't change. That means that if you have 30 shirts you would have 3 ties, and 40 shirts you would have 4 ties. The common multiples are 10 and 1, and are originally introduced through 20 and 2. The reality is from the standpoint of unit rate, for every 10 shirts you have 1 tie. You simply just had to multiply once understanding this.
I need an answer asap please
Which expression is equal to 10/√50
Please show work thx:)
so the right answer is of option B....
Answer:
√2
Step-by-step explanation:
According to the question
10/√50
So it can also be written as
10/√25×2
10/√25×√2
10/5√2
Divide both by 5
2/√2
Rationalize
2/√2 ×√2/√2
2√2/2
Divide both by 2
√2
Therefore the answer is√2
In a thunderstorm, the wind velocity in meters per second can be described by the function v(p) = 5.7 √998 - p, where p is the air pressure in millibars. What is the air pressure of a thunderstorm in which the wind velocity is 49.3 meters per second?
To find the air pressure of a thunderstorm, the given wind velocity is substituted into the function and the equation is solved for the air pressure in millibars.
Explanation:To find the air pressure of a thunderstorm where the wind velocity is 49.3 meters per second, we need to substitute this given wind velocity into the given function and solve for p.
First, we equate the function v(p) = 5.7 √998 - p with the given wind velocity, so we get 49.3 = 5.7 √998 - pSecond, we isolate the square root term on one side by dividing both sides by 5.7 which gives √998 - p = 49.3/5.7Then we square both sides to get rid of the square root: (998 - p) = (49.3/5.7)² After simplifying the equation, we can solve for p, which is the air pressure in millibars.Learn more about Air pressure calculation here:https://brainly.com/question/13624217
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To calculate the air pressure during a thunderstorm with a wind speed of 49.3 m/s, use the mathematical function provided. Solve for 'p' by setting the function equal to given wind speed, isolating 'p', and calculating thereafter.
Explanation:The student's question pertains to finding an unknown in the function v(p) = 5.7 √998 - p, given that the wind velocity is 49.3 m/s. The expression given is for wind velocity in a storm, based on changing air pressure. To answer this, we need to solve the equation for 'p'.
1. First, we set the equation equal to 49.3: 49.3 = 5.7 √998 - p
2. Then we isolate the square root term by dividing by 5.7: (49.3/5.7) = √998 - p
3. After that, we square both sides to eliminate the square root: (49.3/5.7)^2 = 998 - p
4. We then isolate 'p' by subtracting the result from 998: p = 998 - (49.3/5.7)^2
Doing the calculations will give the approximate value of 'p', which is the air pressure in millibars for a thunderstorm with a wind velocity of 49.3 m/s.
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What is the surface area of the cone? Express your answer in terms of π.
Answer:
surface area of a cone = 132.935πft
Step-by-step explanation:
to find the surface area of a cone
given that
radius = 5ft
height of cone = 21ft
recall that the formulae for finding the surface area of a cone = πr( r + √ h² + r²)
so,
surface area of a cone = πr( r + √ h² + r²)
surface area of a cone = π x 5( 5 + √ 21² + 5²)
surface area of a cone = 5π ( 5 + √ 441 + 25)
surface area of a cone = 5π( 5 + 21.587)
surface area of a cone = 5π (26.587)
surface area of a cone = 132.935πft
Help now plsssssssssssssssssssssssssssssssssssssss
Answer:
I think its A
Step-by-step explanation:
Please help me out I know that supplimentary angles have to equal 180 but I have no idea how to solve for x since they didnt give us any angles
Answer:
x = 6
Step-by-step explanation:
13x + 2 = 12x + 8
Because of:
1) Corresponding angles
2) Vertically opposite angles
13x + 2 = 12x + 8
13x - 12x = 8 - 2
x = 6
Answer:
x = 6
Step-by-step explanation:
13x + 2 = 12x + 8
13x - 12x = 8 - 2
x = 6
The perimeter of a square is 80 cm. What is the area?
Answer:
A = 400 cm^2
Step-by-step explanation:
The perimeter of a square is given by
P = 4s where s is the side length
80 = 4s
Divide each side by 4
80/4 = 4s/4
20 =s
We want to find the area of the square
A = s^2
A = 20^2
A = 400 cm^2
Which of the following would be the most effective means of controlling current water pollution of United States surface
waters?
Answer:
Reducing storm runoff and erosion. This would be the most effective means of controlling current water pollution of US surface waters.
thank you!!!!!!!!!!!!
Answer:
6
Step-by-step explanation:
square root of 36 is 6 ^w^
u = 6
Approximately how much fabric of each color will be needed to make a single parachute canopy?
88.5 ft
88.5 ft²
265.5 ft
265.5 ft²
Answer:b)88.5 ft squared
Step-by-step explanation:
Answer:
B) 88.5 ft²
Step-by-step explanation:
vanessa invested $2500 into an account that will increase in value 3.5% each year. write an exponential function, then find the value of the investment after 20 years
Answer: A = 2500 (1.035)^n
A= $ 4,974.47
Step-by-step explanation:
A=P(1+r)^n
A= Amount
P= Principal
R= rate
N= # of years
A= 2500(1.035)^n
N=20
2500(1.035)^20
A= 4,974.47
2x - 2y = 6
3x + 2y = 9
Solve the system of equations.
A) x = 0, y = 3
B) x = 3, y = 0
C) x = 1, y = -2
D) x = -2, y = 1
Answer:
B) x = 3, y = 0
Step-by-step explanation:
I will use the subtraction method, at least i think it is the subtraction method lol:
2x - 2y = 6
3x + 2y = 9
1: Combine
5x=15
x=3
2: Substitute
2(3)-2y=6
6-2y=6
-2y=0
y=0
3: Check by pluggin answers in
2(3)-2(0)=6
6-0=6
6=6 true
3(3)+2(0)=9
9+0=9
9=9 true
DISCLAIMER: the answers might not be right, so you should check just in case and i hope this made sense, you can ask questions too.
also... i would be great if i got a brainliest because i need one more to level up but you don't have to bc i bet someone has a better explanation hehe
The graph below shows the hours students spent studying and their science test scores.
Hours Spent Studying vs. Science Test Scores
A graph has hours spent studying on the x-axis and test score on the y-axis. A line has a regression equation of y = 3.1 x + 40.5.
A student gets a score of 70 on the test. Based on the trend line in the scatter plot, how much time did the student spend studying?
3.1 hours
4.5 hours
9.5 hours
40.5 hours
Answer:
4.5
Step-by-step explanation:
Just took the Test
The required time the student spends on studying is 9.5 hours. Option C is correct.
What is a scatter plot?The association between two numerical variables measured for the same individuals is displayed in a scatterplot. One variable's values are displayed on the horizontal axis, and the other variable's values are displayed on the vertical axis.
here,
Given the regression line,
y = 3.1 x + 40.5.
Put y = 70
70 = 3.1x + 40.5
70 - 40.5 = 3.1x
x = 29.5/3.1
x = 9.51
Thus, the required time the student spends on studying is 9.5 hours. Option C is correct.
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The interior angle of a regular polygon is 115 degrees. What is the exterior angle?
Answer:
Step-by-step explanation:
exterior angle=180-115=65°
Help :( look at picture
Answer: A≈201.06
We know the diamter is 8 and we're using Pi.
A=πr²
=π·8²
8 x 8 = 64
Now we multiply this by using Pi, it says Pi is 3.14. Therefore we multiply that by 64.
64 x 3.14 = 200.96
I hope this helped, have a good day!
Using the drawing Below, find all the possible situations it could be describing. Mark all situations that apply to the inequality.
A. Any temperature that is at 0°C or below will allow water to freeze.
B. Marcus saved one dollar every day from his lunch money.
C.Hank had no money for his trip so he had to keep borrowing money to make it home.
D.Carter had 5 toy cars. He gave Jamison 4 of them.
Answer:
it would be a and c
Step-by-step explanation: Because if you had a zero on a number line you would subtract 5 from the left and that would give you negative 5
36 is what percent of 46
Answer:
78.26%
Step-by-step explanation:
Find the radius of a sphere with a volume of 26,244π cubic inches.
Radius of a sphere with a volume of 26,244π inches³ is 27 inches.
Volume of a sphere, V = (4/3)πr³.
Given the volume of 26,244π inches³,
(4/3)πr³ = 26,244π
The radius of sphere (r) =
r³ = (26,244π)/(4/3)π
r³ = 26,244 × (3/4)
r³ = 19,683
r = ∛19,683
r = 27 inches
The radius of the sphere is 27 inches.
The formula for the volume (V) of a sphere with radius (r) is given by:
[tex]\[ V = \frac{4}{3} \pi r^3 \]Given that the volume (\( V \)) of the sphere is \( 26,244\pi \) cubic inches, we can set up the equation:\[ 26,244\pi = \frac{4}{3} \pi r^3 \]To solve for \( r \), we first divide both sides by \( \frac{4}{3} \pi \):\[ r^3 = \frac{26,244\pi \times \frac{3}{4}}{\pi} \]\[ r^3 = 19,683 \][/tex]
Taking the cube root of both sides:
[tex]\[ r = \sqrt[3]{19,683} \]\[ r \approx 27 \][/tex]
Therefore, the radius of the sphere is 27 inches.
16)
What is 8.3 x 10-3 in standard form?
0.00083
0.0083
0.083
8.300
Answer:
0.0083
Step-by-step explanation:
Move the decimal place to the left three times
Answer:
0.0083
Step-by-step explanation:
Please help !! I would really appreciate it
Answer:
Runner 1
Step-by-step explanation:
Runner 1's speed is the slope of the line = (20-0)/(2-0) = 10
Runner 2's speed is the slope of the line = 8.5 (the coefficient of t)
Runner 3's speed is slope = (36-18)/(4-2) = 9
The fastest pace, therefore is of runner 1, because 10>9 AND 10>8.5
Find the equation of the axis of symmetry of the following parabola algebraically:
y=-5x²+20x
Answer:
x= 2
Step-by-step explanation:
hello :
y= -5x²+20x a= -5 b= 20
the axis symmetry is the line when an equation is : x = -b/2a
x= -(20)/2(-5)
x= 2
The equation of axis of symmetry of the given parabola is x =2
What is a parabola?A parabola is a plane curve drawn so that any point on it is the same distance from the focus and the directrix.
Given is an equation of parabola, y= -5x²+20x
a= -5 b= 20
the axis of symmetry is the line when an equation is : x = -b/2a
x= -(20)/2(-5)
x= 2
Hence, The equation of axis of symmetry of the given parabola is x =2
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Which expression is equivalent to 12^4(x-3)(x+5)/30x(x+3)(x+5)
Answer:
x+5
Step-by-step explanation:
Answer:
[tex]$\frac{3456\left(x-3\right)}{5x\left(x+3\right)}$[/tex]
Step-by-step explanation:
[tex]$ \frac{12^4(x-3)(x+5) }{30x(x+3)(x+5)} $[/tex]
[tex]$\frac{12^4\left(x-3\right)}{30x\left(x+3\right)}$[/tex]
[tex]$\frac{2^8\cdot \:3^4\left(x-3\right)}{2\cdot \:3\cdot \:5x\left(x+3\right)}$[/tex]
[tex]$\frac{2^7\cdot \:3^3\left(x-3\right)}{5x\left(x+3\right)}$[/tex]
[tex]$\frac{3456\left(x-3\right)}{5x\left(x+3\right)}$[/tex]
You have a cylindrical pond that has a diameter of 30 feet and has a depth of 5 feet. If you need to fill the pond one-quarter of the way up with water and water costs $3.25 per cubic foot, how much will you need to spend to fill the pond?
First, calculate the volume of water needed to fill the pond one-quarter of the way up, then multiply that by the cost per cubic foot to find the total cost, which is approximately $2297.29.
Explanation:The subject of this question is Mathematics, more specifically, it involves the use of geometry and algebra. The question is asking about the cost of filling a cylindrical pond one-quarter of the way up with water, given the dimensions of the pond and the price of water per cubic foot.
To answer this question, we first need to determine the volume of water needed. Since the pond is cylindrical, we use the formula for the volume of a cylinder: V = πr²h, where r is the radius and h is the height. The diameter is given as 30 feet, so the radius is 15 feet (half the diameter), and we're filling to a depth of 1.25 feet (one-quarter of the 5-foot depth). This gives us a volume of approximately 706.86 cubic feet.
We then multiply this volume by the price of water. At $3.25 per cubic foot, that's a total cost of about $2297.29. So, you would need to spend approximately $2297.29 to fill the pond one-quarter of the way up with water.
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Please answer correctly, show all steps you did to solve this problem, and i will mark brainliest to best answer
Answer:
Since the values vary from 0.5 to 4.5, let's take 5 intervals of width 1 unit each
(Lower boundary is included, upper boundary is not)
Average
no. of --------> frequency
movies
_______ __________
0 - 1 --------------> 1
1 - 2 --------------> 5
2 - 3 --------------> 5
3 - 4 --------------> 2
4 - 5 --------------> 1
For frequencies, just count the data values in each interval
the sum of two numbers increased by 5
Answer:
If the sum is x, x+5
Step-by-step explanation:
The sum of the two numbers x+y = a, increased by 5, a+5.
The sum of two numbers increased by 5 to be determined.
What is the sum?The sum is defined as the addition of two or more values.
Here,
Let the two numbers be x and y.
their sum is x+y = a(let)
Now the sum is increased by 5.
=a+5
Thus, the sum of the two numbers x+y = a, increased by 5, a+5.
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Nigel tried to solve an equation step by step.
1/2(2h-4)=20
2h−4=10 step1
2h=14 step2
h=7 step 3
What step did he FAIL on?
Answer:
the answer should be h=22 so i would say step 1
Step-by-step explanation:
The mistake was in Step 1.
What is an Equation?An equation is a mathematical statement that is formed when two algebraic expressions are equated using an equal sign.
The equation is
(1/2) (2h-4) = 20
2h-4 = 40
2h = 44
h = 22
The mistake was in step 1, where Nigel should have multiplied 20 by 2 and not divide it by 2.
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please please help me
Answer:
13 and 16 are functions.
If the x does not repeat,it is a function
Which of the following is true of the data set represented by the box plot?
box plot with point at 16, min at 33, Q1 at 40, median at 52, Q3 at 55, max at 78, and point at 86
Answer:
Removing the outliers would not affect the median.
Step-by-step explanation:
Find x if these are similar:
7 cm, 3 cm, 12 cm, and x cm
Answer:
i want to say 28
Step-by-step explanation:
this is because 3 times 4 is 12 so i multiplied 7 by 4
What are the binomial factors of the polynomial x^3-x^2-49x+49
a. (x-1),(x-7),(x+7)
b. (x+1),(x-7),(x+7)
c. (x-1),(x-7)
d. (x+1),(x+7)
Answer:A
Step-by-step explanation:
Just took the ed test