Answer:
No, you have to divide
Step-by-step explanation:
Speed = distance/time
distance/speed = time
If 80% of 120 students passed the test, and (1)/(4) of these students received an A on the test, how many students received an A?
A 20 students
B 22 students
C 24 students
D 26 students
24 students received an A on the test.
What is the system of linear equations?
A system of linear equations is a group of one or more linear equations that can be solved by using a simultaneous equation or elimination method. Therefore, by using the substitution method and writing the solution of the system in terms of coordinate point (x, y) = (-1, 1).
If 80% of 120 students passed the test, the number of students who passed is 120 * 80% = 96 students.
If (1)/(4) of these students received an A on the test, the number of students who received an A is (1)/(4) * 96 = 24 students.
Therefore, 24 students received an A on the test.
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Please hurry it’s timed
1. En una comunidad del Cuzco la Lic. De Salud del Adulto Mayor (60 años a más) reportó los casos de diabetes de los seis primeros meses del año 2019. Enero 24 ancianos Abril 18 ancianos Febrero 30 ancianos Mayo 28 ancianos Marzo 20 ancianos Junio 12 ancianos a) ¿A qué tipo de variable corresponden los datos? B) Elabora una Tabla de Frecuencias y determina la media, mediana y moda.
Answer:
The problem is about cases of diabetes in old people through months.
The variable is descrete , because it doesn't admit decimal numbers, it represents people, and people are whole numbers.
The frequency table would be
Months PeopleJanuary 24
February 30
March 20
April 18
May 28
June 12
The total number of people is 132.
The mean would be the total number of people divided by the six months.
\(\mu = \frac{132}{6} =22\)
Therefore, the mean is 22 people per month.
Remember that the median is the value at the center of the data set, which is between March and April, so
\(\frac{20+18}{2}=19\)
Therefore, the mean is 19.
The third statistical value is determined by the major frequency. So, the data that repeats the most is February, which means that month encloses the majority of people.
Determine the slope of the function.
Enter your answer in the box.
m =
Write an equation for the function.
Enter your answer in the box.
f(t) =
The slope of the function is 2.
The equation for the function is f(t) = 2t - 7
How to write equation of a linear table?The table above is a linear table. Therefore, the equation of the function can be represented in slope intercept form.
y = mx + b
where
m = slope b = y-interceptTherefore, using (-1, -9) and (0, -7) let's find the slope
m = slope = - 7 + 9 / 0 + 1
m = 2 / 1
m = 2
Therefore, let's find the y-intercept using the (0, -7) .
Hence,
f(t) = 2t + b
-7 = 2(0) + b
b = -7
Therefore, the equation is f(t) = 2t - 7
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I need help with this question
Answer:
Radius is \(r\approx4.622\,\text{ft}\)
Step-by-step explanation:
\(V=\pi r^2h\\34=\pi r^2(5)\\\frac{34}{5\pi}=r^2\\r=\sqrt{\frac{34}{5\pi}}\\r\approx4.622\,\text{ft}\)
can you do this for me 3x+y=10, 2x^2+y^2=19
Answer:
1 , 29/11
Step-by-step explanation:
3x+y = 10 ....(1)
2x² +y² = 19 ....(2)
3x+y= 10
y = 10-3x
substituting the value of y in 2nd equation
2x² + y² = 19
2x² + (10-3x)² = 19
2x² + 100 + 9x² - 60x -19 = 0
11x² - 60x +81 = 0
11x² - 33x - 27x + 81 = 0
11x( x-3) - 27(x-3) = 0
(x-3)(11x-27) = 0
x = 3, 27/11
substituting x value on first equation
x= 3 x= 27/11
y= 10-3(3) y= 10 - 81/11
= 10-9 = (110-81)/11
= 1 = 29/11
Hope it helps...
how do you get this answer
As a result οf answering the given questiοn, we may state that Therefοre, x = 2 is the sοlutiοn tο the equatiοn.
What is equatiοn?An equatiοn in mathematics is a statement that states the equality οf twο expressiοns. An equatiοn is made up οf twο sides separated by an equals sign (=). Fοr example, the equatiοn "2x + 3 = 9" argues that the expressiοn "2x + 3" is equal tο the value "9". The purpοse οf equatiοn sοlving is tο determine the value οr values οf the variable(s) that make the equatiοn true. Simple οr cοmplex equatiοns, linear οr nοnlinear, and invοlving οne οr mοre variables are all pοssible. Fοr example, the quadratic equatiοn "x² + 2x - 3 = 0" invοlves the variable x raised tο the secοnd pοwer. Equatiοns are utilised in many areas οf mathematics, such as algebra, calculus, and geοmetry.
The answer -
x = 2
√(x+3) - √(x-1)=2
√(x+3) = 2+ √(x-1)
(x+3)=(2+√(x-1))²
(x+3)=4+4√(x-1)+(x-1)
(x+3)-(x-1)=4(x-1)+4
4 = 4√(x-1)
√(x-1)=1
x -1 = 1x = 2
Therefore, x = 2 is the solution to the equation.
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Explain what distributive property is in the most simple way, that even a toddler could understand.
I'd give brainliest to the simplest answer
Answer:
The distributive property is when you take the value that the equation is being multiplied by and multiply each value in the equation by it.
Step-by-step explanation:
Ex.
3 ( 3 + 9 ) = ?
You can use the distributive property here:
3 ( 3 + 9 ) = ?
3 ( 3 + 9 ) = ?
( 3 x 3 ) + ( 3 x 9 )
9 + 27
36
3 ( 3 + 9 ) = 36
Answer:
\(x(a + b) = ax + bx\)
a line passes through the points (9, 16) and (0, 5). what is it’s equation in slope intercept form
Answer:
y = x + 5
Step-by-step explanation:
Slope: m = (y2-y1)/(x2-x1)
m = (16 - 5)/(9 - 0) = 9/9 = 1
Using m = 1, y = 5, x = 0
then y = mx + b
5 = 1(0) + b
b = 5
so y = x + 5
Does the order pair (1,8) satisfy the function y=3x+6 Yes,No
Answer:
yes it does
Step-by-step explanation:
Question 1: A store pays $50 for a pair of shoes. The markup is 25%.
What is the selling price for the shoes?
———————————————
Question 2 (apart of previous question): what is the total cost for a person to buy the shoes including a 6% sales tax?
Answer:
1) selling price is $62.50 and 2) total cost would be $66.25
Step-by-step explanation:
Drag expressions into order to show a way to find 3 × 56.
5/2 times x = 1 solve for x
Answer:
2/5
Step-by-step explanation:
you have to divide both sides by 5/2, and because it's a fraction, you can just multiply by the recipricol (2/5) and the 5/2 and 2/5 multiplies by x cancel out to get x=2/5
The value of x from the given equation is 2/5.
The given equation is 5/2 x = 1.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
The given equation can be solved as follows:
5/2 x = 1
⇒ 5x = 2
⇒ x = 2/5
Therefore, the value of x from the given equation is 2/5.
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The sum of the angle measures of the polygon is 540°. Write and solve an equation to find the value of x.
The sum of the angle measures of the polygon is 540°, the value of x is 5.
The sum of the angle measures of the polygon is 540°.
Pentagon is formed from three triangles, so the sum of angles in a pentagon = 3 × 180° = 540°. We can also calculate the sum of interior angles of the pentagon in the following way:We know that the sum of the interior angles of a polygon of n sides = (n – 2) × 180°. = 3× 180°= 540°
If a polygon has x sides, then the sum of its angle measures can be found using the formula:
(x-2) * 180° = sum of angle measuresTherefore, for a polygon with x sides, the equation becomes:
⇒(x-2) * 180° = 540°
Solving for x, we get:
⇒x = (540° + 360°) / 180° + 2
⇒x = 3 + 2
⇒x = 5
So, the polygon has 5 sides.
Therefore, the value of x is 5.
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What is wrong with this solution? -6t + 16 = -8 Step One: -6t + 16 = -8 - 16 Step Two: -6 • -6t = -24 • -6 Solution: t = 144
Answer:
t = 4
Step-by-step explanation:
In step two, instead of multiplying by -6 on both sides, you need to divide by -6 to isolate t.
-6t = -24
÷-6 ÷-6
t = 4
When you multiply by -6 on both sides, the equation would be 36t = 144, which is not what we want. The opposite of multiplication is division, and in order to get the answer, you divide by the number multiplied.
What is the answer to this?
Answer:
The third one
Step-by-step explanation:
a lot of triangled have a long base and equal smaller sides
thats a weird question though
Simplify the mathematical expression (a) 7 x 6 – 5 x 4 + 1 x 3
The order of operations is a collection of rules that gives the correct sequence of steps for doing a calculation. BIDMAS is an acronym used to tell you the correct order to complete a calculation when there are different operations . It stands for Brackets, Indices , Division, Multiplication, Addition and Subtraction.
Thus solving the expression;
we first solve all the multiplication parts:
7 x 6 - 5 x 4 + 1 x 3
Now addition:
= 42 - 20 + 3
Lastly subtraction:
= 42 - 23
= 19
Which of the following ordered pair(s) is/are solutions to the following system of
equations?
3x - 5y = 15
5x – 10y = 25
(11,3)
(3. - 1)
(-7,- 6)
All of the above
Answer:
none of them the correct answer is (x,y) (5,0)
7. The quality control division of Rothschild's Blueberry Farm randomly inspects 100 of the containers in the truck being
sent to Stop and Shop. Identify the population and sample given in this scenario.
The 100 containers that the quality control division of Rothschild's Blueberry Farm randomly inspects.
Population: The containers of blueberries that are being sent to Stop and Shop.
Sample: The 100 containers that the quality control division of Rothschild's Blueberry Farm randomly inspects.
Therefore, the 100 containers that the quality control division of Rothschild's Blueberry Farm randomly inspects.
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Annika's flight to ottowa took 45min. The bus ride to the airport took 3 hours. Write a ratio to compare the time on the bus to the time on the plane.
Answer:
yellow to the max dont re port
Step-by-step explanation:
none dont
write an equation that represents the proportional relationship between oil and vinegar explain the meaning of the point
To write and equation we call y=oil and x=vinager, so:
\(\begin{gathered} y=k\cdot x \\ \text{Where k is some constant of proportionality} \end{gathered}\)To find the constant k we can use the point in the picture (vinager, oil) = (x, y) = (1, 1.5), so:
\(\begin{gathered} x=1,y=1.5 \\ 1.5=k\cdot1\Rightarrow k=1.5 \end{gathered}\)So, the equation is:
\(y=1.5x\)Now, the meaning of the point (1, 1.5) is for 1 amount of vinager you need 1.5 amount of oil.
please ignore the work below it!! i am pretty sure it’s wrong!!
p = q - r + s. solve for q
Answer:
if you can't read my pic the answer is: p+r-s=q
Step-by-step explanation:
Draw a pair of adjacent angles with the given description
a. Both angles are obtuse
b. The sum of the angle measures is 180°
c. The sum of the angles measures is 60°
The diagrams showing pairs of adjacent angles and the given description is shown in the attachments below.
What are Adjacent Angles?Adjacent angles are angle that share the same vertex and also has a side in common.
a. An obtuse angle is greater than 90°.
Figure 1 shows a pair of adjacent angles that are obtuse which are ∠ABD and ∠CBD
b. Figure 2 shows two adjacent angles, ∠ABD and ∠CBD whose sum equals 180 degrees.
c. Figure 3 shows two adjacent angles, ∠ABD and ∠CBD whose sum equals 60 degrees.
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PLEASE THERES 30 QUESTIONS AND IM ON 4 AND ITS DUE SOON i can only answer one q at a time omg. RKEGEB
Answer:
3 gallons.
Step-by-step explanation:
there are 3 gallons in 48 cups. apologies if i am wrong
find the diameter of a circle with the circumference of 10cm
The body and head of a fox measure 19 ⅘ inches, and its tail measures 10 ⅘ inches. Whatis the total length of the fox?
Answer:
The total length of the fox is 30 3/5 inches
Step-by-step explanation:
Here, we are interested in calculating the total length of a fox, given the length of its head and body and also the length of its tail.
Mathematically, the total length of the fox = length of its head and body + length of its tail
length of the head and body = 19 4/5
length of its tail = 10 4/5
Plugging these values into the equation, we have;
19 4/5 + 10 4/5
99/5 + 54/5 = (99 + 54)/5 = 153/5 = 30 3/5 inches
Apply The Gram-Schmidt Orthonormalization Process To Transform The Given Basis For Rn Into An Orthonormal Basis. Use The Vectors In The Order In Which They Are Given. B = {(−5, 0, 12), (1, 0, 2), (0, 3, 0)} U1= U2= U3= Apply the Gram-Schmidt orthonormalization process to transform the given basis for Rn into an orthonormal basis. Use the vectors in the order in which they are given. B = {(−5, 0, 12), (1, 0, 2), (0, 3, 0)} U1= U2= U3=
The orthonormal basis is U1 = ( -5/13, 0, 12/13), U2 = (6/25, 0, -22/25), U3 = (0, 1, 0).
U1 = ( -5, 0, 12) / || ( -5, 0, 12) ||
= ( -5/13, 0, 12/13)
U2 = (1, 0, 2) - ( -5/13, 0, 12/13) × (1 * -5/13 + 0 × 0 + 2 × 12/13)
= (1, 0, 2) - ( - 5/13, 0, 24/13)
= (1 +5/13, 0, -22/13) / || (1 +5/13, 0, -22/13) ||
= (6/25, 0, -22/25)
U3 = (0, 3, 0) - ( -5/13, 0, 12/13) × (0 × -5/13 + 3 × 0 + 0 × 12/13) - (6/25, 0, -22/25) × (0 × 6/25 + 3 × 0 + 0 × -22/25)
= (0, 3, 0) - (0, 0, 0) - (0, 0, 0)
= (0, 3, 0) / || (0, 3, 0) ||
= (0, 3/3, 0/3)
Therefore, the orthonormal basis is U1 = ( -5/13, 0, 12/13), U2 = (6/25, 0, -22/25), U3 = (0, 1, 0).
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honeydew melons are on sale at four different grocery stores which store offers the lowest unit rate for honeydew melons and dollar per poundanswer A farmer's prideanswer B puppy groceryanswer C mother natureanswer D sullivan's
We will calculate the unit rate for each option, then choose the lowest unit rate
Happy grocery:
\(\frac{3.5}{7}=\frac{35}{70}=0.5\text{ \$/pound}\)Sullivan's:
\(\frac{\frac{1}{10}}{\frac{1}{5}}=\frac{0.1}{0.2}=\frac{1}{2}=0.5\text{ \$/pound}\)Mother nature:
\(\frac{4}{10}=0.4\text{ \$/pound}\)Farmers pride : $0.45 / pound
So, the lowest unit rate = $0.4/pound
So, the answer is option C. Mother nature
PPPPPPPPPPLLLLLLEAAAAAAASEEEE HELP ME I BEG
(A) Explain how you can tell the difference between exponential growth and exponential decay by looking at a function rule. (B) and provide an example of each.
Answer:
Step-by-step explanation:
by definition :It's exponential growth when the base of our exponential is bigger than 1, which means those numbers get bigger. It's exponential decay when the base of our exponential is in between 1 and 0 and those numbers get smaller.
example: exponential growth
y=2^x
exponential decay
y=(1/2)^x