Ans23.0
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
What is the mean of 30 and 50?
Answer:
The mean is 40
Step-by-step explanation:
(30 + 50)/2 = 40
y = x - 1
x + 4y = 16
Im having troubles. Can some 1 explain in complete explanations and all expressions.
{x,y} = {4, -3}
Substitution :
// Solve equation [2] for the variable x
[2] x = 4y + 16
// Plug this in for variable x in equation [1]
[1] (4y+16) + y = 1
[1] 5y = -15
// Solve equation [1] for the variable y
[1] 5y = - 15
[1] y = - 3
// By now we know this much :
x = 4y+16
y = -3
// Use the y value to solve for x
x = 4(-3)+16 = 4
You are running a concession stand at a basketball game. You are selling hotdogs and sodas. Each hot dog costs $2.30 and each soda costs $1.50. At the end of the night you made a total of $110.00. You sold a total of 60 hot dogs and sodas combined. You must report the number of hot dogs sold and the number of sodas sold X is the number of hot dogs and Y is the number of sodas.
a. Create two equations to represent the situation.
b. Solve the system of equations so you get an answer for x and y.
c. What does the solution mean?
Step-by-step explanation:
2.3X + 1.5Y = 110
X= 110/2.3 - 1.5Y/2.3.....(1)
x + y = 60
x= 60-Y......(2)
so use these two equations
60-Y = 110/2.3 - 1.5Y/2.3
60-110/2.3 = 1.5Y/2.3 + Y
280/23 = 8/23 Y
Y = 35
So now sub Y into (2)
X= 60-35
X= 25
You are welcome kid
how do I solve this question?
Answer:
1,-3
Step-by-step explanation:
The solution to a graph is where the two lines interscet and this graph intersects at the points 1, -3
If ABC is a right triangle with B the right angle, A=(-3,2) and B =(2,5), find possible
coordinates for C
Answer:
b
Step-by-step explanation:
What is 10 multiplied by 6 ?
Look below the questions please.
identify the polynomial equivalent to (6x + 1)^2
a) 36x^2 - 12x - 1
b) 36x^2 + 12x
c) 36x^2 + 12x + 1
d) 36x^2 - 1
Answer:
The answer you are looking for is the part d
Camille uses bricks to make a border around her garden. • She uses 12 bricks to make 3 feet of the border. She will use the same number of bricks per foot to complete the border. . What is the total number of bricks Camille will use to make 21 feet of the border?
A. 63
B. 72
C. 84
D. 120
Answer:
The answer is "C. 84"
Step-by-step explanation:
Divide 12 by 3 which gets 4. Then, multiply 4 by 21.
On a coordinate plane, a line goes through (0, 0) and (2, negative 2).
The first equation from the system of equations is graphed. Graph the second equation to find the solution of the system of equations.
y = –x,
y = 2x + 6
What is the point of intersection?
(2, 1)
(–1, 2)
(0, 6)
(–2, 2)
Answer:
(2, 2)
Step-by-step explanation:
Edg 2021
Answer:
D or (-2,2)
Step-by-step explanation:
Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x. (2 points)
f of x equals eight divided by x and g of x equals eight divided by x
Answer:
we can say that f and g are inverses of each other because f(g(x)) = x and g(f(x)) = x
Step-by-step explanation:
We need to confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x.
We have
[tex]f(x)= \frac{8}{x}\\g(x)=\frac{8}{x}[/tex]
Now, finding f(g(x))
Put x = 8/x in f(x)
[tex]f(g(x)) =\frac{8}{\frac{8}{x} }\\=8\div \frac{8}{x}\\=8 \times \frac{x}{8}\\=x[/tex]
So, we get f(g(x))=x
Now, find g(f(x))
Put x = 8/x in g(x)
[tex]g(f(x)) =\frac{8}{\frac{8}{x} }\\=8\div \frac{8}{x}\\=8 \times \frac{x}{8}\\=x[/tex]
So, we get g(f(x)) = x
Therefore we can say that f and g are inverses of each other because f(g(x)) = x and g(f(x)) = x
PLEASE HELP!! 25 POINTS!!!!!!!!!!!!!
Use the scenario to answer the parts that follows.
Lee can purchase gas for his rental car for $2.50 per gallon. It will cost him $160 to rent the car.
The rate of change is ____________
.
*Enter this answer as money. Ex. 3.5 should be entered as 3.50 or 3 should be entered as 3.00
The y-intercept is ______________
.
*Enter this answer as money. Ex. 3.5 should be entered as 3.50 or 3 should be entered as 3.00
If Lee purchases 15 gallons of gas the total cost will be $ _______
.
*Enter this answer as money. Ex. 3.5 should be entered as 3.50 or 3 should be entered as 3.00
If the total cost of Lee's trip is $1,480.00 then Lee used
gallons of gas. ___________
Answer:
It will cost him $616 for 160 gallons of gas.
Step-by-step EXPLANATION FIRST YOU HAVE TO MULTIPLY 3.25 BY 160 TO GET $520, THEN JUST ADD IT BY $96 TO GET $616.
Step-by-step explanation:
A dome of a building is in the form of a hemisphere from inside it was whitewashed at the cost of rupees 4989.60 if the cost of white washing is rupees 20 per meter square find the inside surface area of dome and volume of air inside the dome
Answer: [tex]249.48\ m^2; 369.168\ m^3[/tex]
Step-by-step explanation:
Given
Cost of white-washing =Rs. 4989.60
Rate =20 per meter square
So, inside area of = [tex]\dfrac{4989.60}{20}=249.48\ m^2[/tex]
The surface area of dome= [tex]4\pi\ r^2=249.48[/tex]
[tex]4\times 3.142\times r^2=249.48\\r^2=\frac{249.48}{4\times 3.142}=19.85\\r=4.455\ m[/tex]
The volume of air in the dome [tex]V=\frac{4}{3}\pi r^3[/tex]
[tex]V=\frac{4}{3}\cdot 3.142\cdot (4.45)^3\\V=369.17\ m^3[/tex]
Ten out of every 32 people surveyed play Among Us. What percent of people surveyed play Among Us?
Answer:
31.25%
pls give brainliest
Answer:
31.25%
Step-by-step explanation:
Shopping While shopping for clothes, Jaclyn spent $17 less than 2 times what Daniel spent. Jaclyn spent $11. Write and solve an equation to find how much Daniel spent. Let x represent how much Daniel spent. The equation that can be used to determine how much Daniel has spent is 2 X- 17 = 11
When a number is decreased by 47%, the result is 20. What is the original number to the nearest tenth?
Answer:
37.7
Step-by-step explanation:
n - 0.47n = 20
0.53n = 20
n = 37.7
find the mean median mode and range. 8, 10, 15, 17, 17, 22
Answer:
mean: 14.833 or 14.8
median: 16
mode: 17
range: 14
wich of these is equivalent to
[tex] {4}^{3} [/tex]
HELP ME PLZ I NEDD A ON ThIS SO GET ME RIGHT I WELL GIVE BAIRELEST thank you
Answer:
100
Step-by-step explanation:
so 20 was original
5 times of 20 is as simple as 5 * 20
5 * 20 = 100
Answer:
100
Explanation:
Because 20 times 5 is 100
—4 + 5 — 7 = 10 + 3х – 2х
Answer:
X= -4.66666667 or 5 when rounded to the nearest whole number.
Step-by-step explanation:
-4+5-7=10+3x-2
-11+5=8+3x
-6=8+3x
-6-8=8-8+3x
-14=3x
X= -4.66666667 or 5 when rounded to the nearest whole number.
I need help so please .
Answer:
78 m
Step-by-step explanation:
We need to use the Pythagorean theorem, [tex]a^{2} + b^{2} = c^{2}[/tex].
Substitute in [tex]a[/tex] and [tex]b[/tex].
[tex]30^{2} + 72^{2} = c^{2}[/tex]
Simplify.
[tex]900 + 5184 = c^{2}[/tex]
Add.
[tex]6084 = c^{2}[/tex]
Square root both sides.
[tex]78 = c[/tex]
The hypotenuse is 78 m long.
find c:
a² plus b² = c
72² plus 30²=c
5I84 plus 900
6084
now square root that
78
so C=78
how can I evaluate 2x + y4 when X=5 y=9 ?
Answer: 46
Step-by-step explanation:
2 x 5 = 10
9 x 4 = 36
10 + 36 = 46
Answer:
46
Step-by-step explanation:
subsitute in x and y , so
2(5)+(9)4 = 10 + 36 = 46
the number 47 is composed of
Answer:
it's composed of the digits 4 and 7
Examine the quadratic equation LaTeX: 9x^2+12x+4=0
A: What is the discriminant of the quadratic equation?
B: Based on the discriminant, how many roots does the equation have?
C: State whether the root(s) are real or complex.
Be sure to answer all parts!
Ava had $28.50 to spend at the farmer's market. After buying 3 pumpkins Ava, has $12 left.
Q.1 Which equation could you use to find the price of one pumpkin (x)?
Q.2 How much did Ava pay for each pumpkin?
Question 1: 28.50 - 3x = 12
Question 2: $5.50
Answer:
Step-by-step explanation:
Question 1: 28.50 - 3x = 12
Question 2: $5.50
Part A
Solve 4,500 ÷ 90.
Part B
Select all the expressions that are equal to 4,500 ÷ 90.
A. 4,500 ÷ 9 tens
B. 450 ÷ 90
C. 450 ÷ 9
D. 4,500 ÷ 9
E. 4,500 ÷ 90 tens
Mrs. Smith is making cookies. Her recipe calls for 6/8 cup of white sugar and 2/4 cup of brown sugar. How much sugar will Mrs. Smith use all together to make the cookies?
Answer:
10/8 or 1 and 2/8
Step-by-step explanation:
You can convert 2/4 into 4/8 then all you have to do from there is just add to get 10/8.
Hope I could help! :)
NEED ASAP!!!
If you were to construct a triangle using the given information, classify what type of triangle it would create.
3 cm, 5 cm, 4 cm
90°, 45°, 18 in
A) Right Triangle
B) Isosceles Triangle
C) Equilateral Triangle
D) Obtuse Triangle
Answer:
righ angle tringle
Step-by-step explanation:
because 90 degree angle is only in right angle tringle,we can not creat this angle in other tringle
Which percent is equivalent to four fifths?
A. 0.8%
B. 80%
C. 8%
Answer:
B
Step-by-step explanation:
100 divided by 20 is 5
and 4×20=80
therefore 80% is equal to 4/5
A town's population went from 25,000 to 30,000. What was the percent of change? ( Please explain your answer )
whats 20,000,000x - 3 =
Answer:
6666666.667 equals x
Step-by-step explanation:
take the 3 to the other side- doin that is became positive
them you divide to find x
