Usando algebra, veremos que cada estudiante debe aportar $5.00.
¿Cuál será el aporte de cada estudiante?
En el caso en el que hay 25 estudiantes, cada uno aporta $4.00, entonces la cantidad total que se colecta es:
25*$4.00 = $100
Ahora, en el caso de que hay 20 estudiantes, cada uno aportara una cantidad x, de tal forma que:
20*x = $100
Debemos resolver la ecuación de arriba para x:
x = $100/20 = $5.00
Es decir cada estudiante debe aportar $5.00
Sí quiero aprender más sobre algebra, puedes leer:
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what is the answer
Answer:
dilation
Step-by-step explanation:
i passed the class
Create a system of equations for this situation. A store sells bracelets for $10 and rings for $15. On Monday they sold 30 items. When they counted the money they made $450. Do not solve, just create the system.
Answer:
10x + 15y = 450
Step-by-step explanation:
A store sells bracelets for $10 and rings for $15.
Sold 30 items.
They counted the money they made $450.
x = bracelets
y = rings
10x + 15y = 450
A plastic candy container and its dimensions
are shown in the diagram.
Which best shows the volume of the candy
container? Use 22
A.654 cm
B.8084 cm
C.577 cm
D.2,618 cm
Answer:
A.654 cm
Step-by-step explanation:
V = h times π times Radius
Hope it helps!!!Brainliest pls!!!What is the value of q/ 6+(12−r), when q = 4 and r = 38?
A 7/ 12
B 14/ 19
C 19/ 24
D 21/ 25
Answer:
The answer to the value of q is 19/24
On a 750 mile road trip Thelma drove 110 miles more than Louise. How far did each person drive?
Answer:
Thelma drove 430 miles, Louise drove 320 miles
Step-by-step explanation:
[tex]Distance = 750\\T + L = 750\\T = L + 110\\(L + 110) + L = 750\\2L + 110 = 750\\2L = 640\\L = 320\\T = 430[/tex]
Marlene rides her bike at a rate of 16 miles per hour. The time in hours that she rides is represented by the variable t, and the distance she rides is represented by the variable d. This relationship is modeled with distance d as a function of time t.
Which statements are true of the scenario? Select two answers..
Answer:
The equation t = d + 16 represents the scenario
Step-by-step explanation:
The independent variable, the input, is the variable d, representing distance. The distance traveled depends on the amount of time Marlene rides her bike. The initial value of the scenario is 16 miles per hour. so The equation t = d + 16 represents the scenario
Hope it helps!!!brainliest pls!!!
Question 3 of 10
Solve the formula A = r2 for r.
O A. T = VA
А
B. r =
0
C. r = VA - 7
O
D. r = VAT
SUBMIT
Darrien has 60 actors in his theater class. He concludes that 8 out of 15 actors have previous acting
experience. What is the sample size?
answer choices
60
8
15
53
The sample size of the actors is the number of actors Darrien selected
The sample size is 15
How to determine the sample size?From the question, we understand that:
Darrien has 60 actors
This represents the population of the experiment.
Then he selected 15 of the actors, and 8 of them have previous acting experience.
The 15 actors he selected represents the sample of the experiment
Hence, the sample size is 15
Read more about sample size at:
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What is 10 to the power of 12?
Answer:
1000000000000
Step-by-step explanation:
if you =have 10^12 power you multiply 10*10 12 times
so to work it out you would do:
10*10*10*10*10*10*10*10*10*10*10*10=1000000000000
and since your bored to death here's a cool pic
Find the solution to the system of equations.
Answer:
[tex](-2,-5)[/tex]
Step-by-step explanation:
[tex]\begin{bmatrix}y=-4x-3\\ y=-2x+1\end{bmatrix}[/tex]
[tex]\mathrm{Substitute\:}y=-2x+1[/tex]
[tex]\begin{bmatrix}-2x+1=-4x-3\end{bmatrix}[/tex]
Isolate x for -2+1=-4x-3: x=-2
[tex]\mathrm{For\:}y=-2x+1[/tex]
[tex]\mathrm{Substitute\:}x=-2[/tex]
[tex]y=-2\left(-2\right)+1[/tex]
[tex]-2(-2)+1=5[/tex][tex]4+1=5[/tex]
[tex]y=5[/tex]
Simplity.
(x² – 2y + 7) (3x – 3)
A. Ty – 177 +55 - 21
B. 73 – 179² +5y-21
C. 77-7y2 +5y-21
D. Ty - 2y +557-21
-
Step byCombine any like terms on each side of the equation: x-terms with x-terms and constants with constants. Arrange the terms in the same order, usually x-term before constants. If all of the terms in the two expressions are identical, then the two expressions are equivalent.
PLEASE HELPP!!!!
Which number is an irrational number?
Answer:
D. [tex]\sqrt[3]{16}[/tex]
Step-by-step explanation:
What is an irrational number?
❖ An irrational number is a number that cannot be written in fraction
form. They're also non-terminating and non-repeating decimals.
Determing Irrational or Rational
A.
The square root of 100 is 10 because 10 × 10 = 100. 10 can be written as a fraction of 10/1, so it's rational.B.
1/8 is already in fraction form, so it's rational.C.
-2.2675 is a terminating decimal, so it's rational.D.
The cube root of 16 is irrational because there is no exact number that multiplies itself 3x to get 16. Additionally, when you put the cube root of 16 in a calculator, you will get a mess of decimal digits, thus forming a non-repeating and non-terminating decimal.You buy 7 gallons of gasoline at p dollars per gallon and pay $26.88. Write an equation to find the price of one gallon of gasoline. Then find the price of one gallon of gasoline.
A recipe requires 34 cups of milk. Paula is making 12 of the recipe. How many cups of milk will Paula use?
The diameter of a circle is 2 centimeters. What is the circle's area?
Answer:
3.14 cm²
Step-by-step explanation:
Given :-
Diameter = 2 cm
To Find :-
Area
Formula Required :-
Area (circle) = πr²
Solving :-
Area = 3.14 x 1 x 1
= 3.14 x 1
= 3.14 cm²
Solution :-
3.14 cm²
Solution:
We know that:
Diameter of circle = 2 cmRadius = Diameter/2Area of circle = πr²Finding the radius.
Radius = Diameter/2=> Radius = 2/2=> Radius = 1 cmFinding the area.
Area of circle = πr²=> Area of circle = 3.14 x 1²=> Area of circle = 3.14 x 1 = 3.14 cm²Find the length of the side of a rhombus whose diagonals are 6cm and 8cm.
Answer:
Step-by-step explanation:
Use the rhombus area formula to find it.
A = [tex]\frac{diagonal 1 * diagonal 2}{2}[/tex]
A = (6*8) / 2 = ...
What is the inverse of the trigonometric function in the graph? y = sinx y = cosx y = arcsinx y = arccosx
The inverse of the trigonometric function given in the graph is;
Option D; y = arc cosx
The graph is missing and so i have attached it.
To get the inverse of the trigonometric function, we need to first know what the trigonometric function is.From the graph, we see that;when x = 0, y = 1
when x = π, y = -1
when x = π/2, y = 0
Now, the equivalent of radian angle π when converted to degrees is; π = 180°
Thus; π/2 rad = 90°
Thus;
when x = 0°, y = 1
when x = 180°, y = -1
when x = 90°, y = 0
Now, let us look at the value of angle 0° for each trigonometric function sin, cos and tan.sin 0 = 0
tan 0 = 0
cos 0 = 1
Let us try angle 90°
sin 90 = 1
cos 90 = 0
tan 90 = ∞
The only trigonometric function that corresponds with the coordinates of the graph is y = cos x.The inverse of cos x is cos⁻¹x or arc cos x.
Read more at; https://brainly.com/question/9196410
Answer:
D
Step-by-step explanation:
¿Cuál es la suma de los ángulos interiores del polígono mostrado a continuación?
The sum of interior angles of the given polygon is 900 degrees
How to calculate the sum of an interior angle of a polygon?The formula used to calculate the sum of an interior angle of a polygon is expressed as:
Sum of interior angles = ( n − 2 ) × 180 ∘
n is the number of sides
The number of sides of the given polygon is 7, hence;
Sum of interior angles = (7 − 2 ) × 180 ∘
Sum of interior angles = 5 × 180 ∘
Sum of interior angles = 900 degrees
Hence the sum of interior angles of the given polygon is 900 degrees
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Find the square root of 144.
A. 72
B. –12
C. 12
D. 1 over 12
Answer:
C
Step-by-step explanation:
12 x 12 is 144.
I hope I helped
Answer:
C
Step-by-step explanation:
Square root is a number multiplied by the same number to get an answer
144/12 is 12 and
12 x 12 = 144
Vulkan jumped 7/8 yard and then 2, 7/8 feet. How many feet did he jump in all?
help pls bro
The total length that Vulkan jumped on both occasions is 3 1/2 feet.
What are fractions?A fraction is a non integer that is made up of a numerator and a denominator. The numerator is the number above and the denominator is the number below.
How many feet did he jump in all?First convert yard to feet: 1 yard = 3 feet
7/8 x 3 = 21/8 = 2 5/8
Now add the fractions together
2 5/8 + 2 7/8
2 (5 + 7) / 8 = 2 12/8 = 3 1/2 feet
To learn more about fractions, please check: https://brainly.com/question/915789
If anyone doesn’t mind, can someone help with this one
Answer:
x = 20 degrees, angle ABC = 98 degrees
Step-by-step explanation:
The two inner angles sum up to 180 degrees. This is a general rule when you have two parallel lines and another line intersecting through both lines.
So angles ABC and DCB sum up to 180.
4x + 18 + 2x + 42 = 180
6x + 60 = 180
6x = 120
x = 20 degrees
Plugging this back in angle ABC,
4(20) + 18 = 98 degrees
NEED HELP ASAP!!!!
Determine the solution for x? - 3x - 28 >= 0
A. [-7, 4]
B. [-4, 7]
C. (-infiniti, -4] or [7,infiniti)
D. (infiniti,-7] or [4,infiniti]
Answer:
I believe its c or a
Step-by-step explanation:
just guess those are my suggestions
8. An automobile traveled 320 miles in 6 hours. What is its average speed?
Answer:
The automobile's average speed is 53.33 mph.
Step-by-step explanation:
Since average speed equals total distance traveled divided by the time of the travel we have:
d = 320 mi the distance traveled
t = 6 hr the time of the travel
v = average speed
v = d/t
v = 320/6
v = 53.33 mph
Answer:
about 53 miles per hour
Step-by-step explanation:
320/6 is 53.33 repeated
you divide 320/6 because you need to know how many miles you going in an hour
hope that helps!
What is the total area of the three triangles? 12. 5 square units 13 square units 13. 5 square units 14 square units.
Answer:
53 square units
Step-by-step explanation:
12.5+13+13.5+14
The half-life of a radioactive kind of antimony is 4 days. How much will be left after 12 days, if you start with 7,600 grams of it?
Answer:
950
Step-by-step explanation:
A=P*(1/2)^(t/h)
Helpp meeee question 2 pleaseee !!
Answer:
C is Cassandra's age, it is being multiplied by 2(Doubling). G is replaced by 9 and you will find the mother's age
Step-by-step explanation:
what is pi to the 30th digit (decimla place)
Answer:
3.141592653589793238462643383279
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
the 30th decimal of pi is 9
A broken pottery shard found at an archaeological dig has a curved edge. Find the diameter of the original plate. (Use the fact that the diameter of PR is a
perpendicular bisector of chord AB.)
Answer:
The answer to this question is 18 1/ 2 degrees
Step-by-step explanation:
Which of the following is an input value based on this set of ordered pairs? (3,4), (-5, 7), (8, -1) answers 4 ,-1 ,8 ,7
how would i find the area of this
Answer:
Your answer is 30 sq. yd
Step-by-step explanation:
To find the area of the rectangle:
l x w
6 x 4 = 24
To find area of triangle:
1/2(bh)
to find the base of the triangle you subtract 6 from 9:
9 - 6 = 3
So 1/2 (3 x 4)
1/2 (3 x 4)
1/2 (12)
12 / 2 = 6
Area of whole figure:
You will now add 6 + 24 = 30