Answer:
$25 a lamp
Step-by-step explanation:
First divide $10,000 by 500 lamps to find how much one of them cost
That is $20 a lamp so then multiply .25 *20 or 1/4 *20
you get 5 than add 20 +5=25
What is the Y and X in this problem?
Answer:
there is no problem
Step-by-step explanation:
Ali took five Math tests during the semester and the mean of his test score was 85. If his mean after the first three was 83, What was the mean of his 4th and 5th tests
Answer:
88
Step-by-step explanation:
Mean of five test = 85
Sum of five tests = 85*5 = 425
Mean of first three test =83
Sum of first three test = 83 * 3 = 249
Sum of 4th and 5th test scores = 425 - 249
= 176
Mean of his 4th and 5th test = 176/2 = 88
Evaluate the expression 9 + (7 - 4)2 + 3.
06
O3
0 18
O 12
Answer:
18
Step-by-step explanation:
PEMDAS
Parenthesis
Exponents
Multiply/Divide (from left to right)
Add/Subtract (from left to right)
Help?
8th grade math
Answer:
Step-by-step explanation:
(m-8)^2 × n
= (10-8)^2 × 2
= (2)^2 × 2
= 4 × 2
= 8
what is the difference of the fractions? 5/6 - 4/6
Answer
[tex]--------------------------------------------[/tex]
[tex]\frac{5}{6}-\frac{4}{6}[/tex] = [tex]\frac{1}{6}[/tex]
[tex]0.8333333333[/tex] - [tex]0.6666666667[/tex] = [tex]0.1666666666[/tex]
[tex]\frac{1}{6}[/tex] = [tex]0.1666666666[/tex]
[tex]It's[/tex] [tex]\frac{1}{6}[/tex] [tex]because[/tex] [tex]5-4[/tex] = [tex]1[/tex]
[tex]and[/tex] [tex]the[/tex] [tex]denominator[/tex] [tex]is[/tex] [tex]the[/tex] [tex]same.[/tex]
[tex]So[/tex], [tex]it's[/tex] [tex]\frac{1}{6}[/tex]
[tex]--------------------------------------------[/tex]
Hope this helps! <3
[tex]--------------------------------------------[/tex]
Please answer this thanks
Answer:
It's C! 75%
Step-by-step explanation:
Answer: 75%
Step-by-step explanation:
Just form the simple equation of 14/8=x/100
cross mulitply: 8x=1400
=> x=175
175-100(super important step)=75
75%
:) Tada your answer. Have a nice day
Which postulates can be used to prove congruence?
Answer:
SAS postulate.. is the answer
What describes θ when an ellipse is created from an intersection of a plane and double-napped cone?
θ = α
θ = 90⁰
α < θ < 90⁰
0⁰ ≤ θ < α
Answer:
C: a < θ < 90%
Step-by-step explanation:
PLEASE HELP I WILL MARK BRAINLIST TO WHOEVER ANSWERS FIRST !!
graph the line that represents the equation y=2/3x+1
I HAVE THE PICTURE OF THE GRAPH ABOVE !!
Answer:
Graph (6, 5) and (-6, -3), and then use a ruler (optional), and draw a line between them, and a little after the points.
Step-by-step explanation:
y = 2/3x + 1
Substitute different numbers for x, and find y:
You don't really want to work with fractions, so try to find a number that when multiplied by 2/3, gives you a whole number
x = 6
y = 2/3(6) + 1
y = 12/3 + 1
y = 4 + 1
y = 5
Point: (6, 5)
x = -6
y = 2/3(-6) + 1
y = -12/3 + 1
y = -4 + 1
y = -3
Point: (-6, -3)
Graph these two points, and then use a ruler (optional), and draw a line between them, and a little after the points.
Kendal bought x boxes of cookies to bring to a party. Each box contains 12 2 points
cookies. Someone else brought 24 cookies. Let 'y' represent the total
number of cookies at the party. Show an equation in SLOPE-INTERCEPT
FORM that models this situation. Kendal brings 60 boxes to the party. How
many cookies in total were at the party?
Answer:
744 cookies
Step-by-step explanation:
PLZ MARK BRAINLIEST ON THE TOP RIGHT CLICK THE CROWN.
Seni has a goal to save $500. So far he has saved $340.50 . How much more does he need to save to reach his goal?
Answer:
192.50
Step-by-step explanation:
500-340.50 = 192.50
159.5
Step-by-step explanation:
take 340.50 away from 500, you will have 159.50 left
i need help with this question please
Answer:
x axis - (18,0)
y axis - (0,12)
quadrant I - (4.5, 10.6)
quadrant II -(-15,21)
quadrant III - (-3/4, -4 1/9)
quadrant IV - (0,-7)
Step-by-step explanation:
Speedy Oil provides a single-channel automobile oil change and lubrication service. Customers provide an arrival rate of 4 cars per hour. The service rate is 5 cars per hour. Assume that arrivals follow a Poisson probability distribution and that service times follow an exponential probability distribution. a. What is the average number of cars in the system
Answer:
4 customers
Step-by-step explanation:
Given that:
Mean Arrival rate (λ) = 4 cars per hour
Service rate (u) = 5 cars per hour
Using the queuing formula :
The average number of cars in the system can be obtained using the relation :
Number of customers in the system (L)
Number of customers in queue = (Lq)
L = Lq + (λ/u)
Lq = λ^2 / u(u - λ)
Hence,
Lq = 4^2 / 5(5 - 4)
Lq = 16/ 5(1)
Lq = 16/ 5
Lq = 3.2
L = 3.2 + (4/5)
L = 3.2 + 0.8
L = 4
Angle A and B are supplementary angles. Angle A measures 45 degrees. What is the measurement of angle B?
Answer:
135
Step-by-step explanation:
Supplementary means both angles equal 180 degrees when combined
180 - 45 = 135
Complementary means both equal 9 degrees when combined
if u think connect the lines of S and it makes and 8 for 180 and C makes 9 for 90
The measurement of the angle B should be considered as the 135 when the Angle A is given.
Calculation of the measurement of angle B:Since
Angle A and B are supplementary angles.
Angle A measures 45 degrees.
So we know that the sum of the supplementary angles is sum upto 180 degrees
So, it can be like
A + B = 180
45 + B = 180
B = 180 - 45
= 135 degrees
hence, The measurement of the angle B should be considered as the 135.
Learn more about an angle here: https://brainly.com/question/16616666
Which equation can be used in system of equations to solve for the unknown? CHECK ALL THAT APPLY
1) A=2
2) -6A+B=2
3) 3A-B+C=1
4) B=0
5) 9A-3B+C=1
Answer:
A and E
Step-by-step explanation:
edge 2021
Answer:
Option A and E are the correct answers.
Points cuz it’s the holidays,, stay safe !
Merry Late Christmas and Happy early New Years !!! Hope you stay safe and healthy during these times :))
This is a puzzle can someone solve it
Answer:
Xavier, Yeoman, and Zenger
Step-by-step explanation:
He spoke to them multiple times during the given time period while he only spoke to Osborn once.
. 90 decimeters = _______________ millimeters
0.124
[tex]0.124five \: base \: two [/tex]
Let x be the number equal to 0.124₅, so that
x = 1•5⁻¹ + 2•5⁻² + 4•5⁻³
Multiply x by 5³ to convert it to a whole number:
5³x = 1•5² + 2•5¹ + 4•5⁰
Convert everything to base 2:
5³ = 125 = 64 + 32 + 16 + 8 + 4 + 1 = 1111101₂
1•5² + 2•5¹ + 4•5⁰ = 25 + 10 + 4 = 39 = 32 + 4 + 1 = 100111₂
Then
1111101₂ x = 100111₂
so that
x = 100111₂ / 1111101₂
I've carried out the first several steps in the division in the attached table, with more bits added to the result. The number in base 2 does not terminate. You end up with approximately
0.010011111101111100111...₂
50 POINTS
What is the area of a rectangle with a length of 8.96 in and a length of 7.7?
a 68.992 in3
b 68.992 in2
Answer:
thats only 25
Step-by-step explanation:
Which recursive definition produces an arithmetic sequence where g(5) = 8 and g(10) = 10?
Answer:
gₙ = gₙ₋₁ + 0.4, with g₁ = 6.4
Step-by-step explanation:
The n-th term of an arithmetic sequence can be written as:
gₙ = g₁ + (n - 1)*d
Where g₁ is the first value, and d is the difference between any two consecutive terms of this sequence.
Then we have the equations:
g₅ = 8 = g₁ + (5 -1)*d
g₁₀ = 10 = g₁ + (10 - 1)*d
This is a system of equations, we can rewrite this as:
8 = g₁ + 4*d
10 = g₁ + 9*d
To solve this, the first step will be isolate one of the variables in one of the equations, i will isolate g₁ in the first equation:
g₁ = 8 - 4*d
Now we can replace this in the second equation to get:
10 = 8 - 4*d + 9*d
10 = 8 + 5*d
10 - 8 = 5*d
2 = 5*d
2/5 = d = 0.4
Now with this, we can find the value of g₁ by using the equation:
g1 = 8 - 4*d = 8 - 4*(2/5) = 8 - 8/5 = 6.4
Then the nth term of this sequence can be written as:
gₙ = 6.4 + (n - 1)*0.4
This relation also can be written as:
gₙ = gₙ₋₁ + d = gₙ₋₁ + 0.4, with g₁ = 6.4
Then the correct option is the second option.
find the multiplicative inverse of 7 in mod 9
Answer:
-1/7
Step-by-step explanation:
The inverse of 7 is simply the opposite
Triangle ABC has the following vertices:
A(-8,7)
B(0, -5)
C(9,1)
Is triangle ABC a right triangle, and why?
Answer:
Yes because AB ⊥ BC
Step-by-step explanation:
Answer: Yes because AB ⊥ BC
Step-by-step explanation: Khan Academy
4x – 4y = -16
please help find the y value
Answer: y=x+4
Step-by-step explanation:
if you need to find the y
we divide the equation by 4
x-y=-4
add y on both sides
y=x+4
A triangular prism and its dimensions are shown in the diagram
What is the total surface area of this triangular prism in square meters?
Answer:
need a thanks
Step-by-step explanation:
Triangular prisms have their own formula for finding surface area because they have two triangular faces opposite each other. The formula A = 1 2 b h is used to find the area of the top and bases triangular faces, where A = area, b = base, and h = height.
The total surface area of the triangular prism is 240 m².
What is a prism?A prism is a three-dimensional object.
There are triangular prism and rectangular prism.
We have,
The total surface area of a triangular prism.
= Perimeter x length + base x height
= (6 + 6 + 8) x 10 + 8 x 5
= 20 x 10 + 40
= 200 + 40
= 240 m²
Thus,
The total surface area is 240 m².
Learn more about prism here:
https://brainly.com/question/12649592
#SPJ2
A 2,100-square-foot home in Cheyenne, Wyoming, costs $110 per square foot. How much does this home cost?
If RSTU is a rhombus, find the measure of angle RUT.
Finding x:
We know that the diagonals of a rhombus bisect its angles
So, since US is a diagonal of the given rhombus:
∠RUS = ∠TUS
10x - 23 = 3x + 19 [replacing the given values of the angles]
7x - 23 = 19 [subtracting 3x from both sides]
7x = 42 [adding 23 on both sides]
x = 6 [dividing both sides by 7]
Finding ∠RUT:
We can see that:
∠RUT = ∠RUS + ∠TUS
Since we are given the values of ∠RUS and ∠TUS:
∠RUT = (10x - 23) + (3x + 19)
∠RUT = 13x - 4
We know that x = 6:
∠RUT = 13(6)- 4
∠RUT = 74°
1 + 1 = ?
I am a Collage Student and i have ZERO idea what this is.
in hostel of 40 students there is food for 30 days if 20 more students join the hostel how long will the food last
Answer:
The food will last for 20 days
Step-by-step explanation:
The equation of the inverse proportional is xy = k, where k is the constant of variation
∵ In a hostel of 40 students, there is food for 30 days
→ That means the food is the constant k and the number of days y
varies inversely with the number of students x
∴ x = 40 and y = 30
∵ xy = k
∴ 40 × 30 = k
∴ 1200 = k
∴ The equation of the inverse proportional is xy = 1200
∵ 20 more students join the hostel
→ That means the number of students increased by 20
∴ The number of students in the hostel = 40 + 20
∴ The number of students in the hostel = 60
→ By using the equation above
∵ 60 × y = 1200
∴ 60y = 1200
→ Divide both sides by 60
∴ y = 20
∴ The food will last for 20 days
2./10
To rationalize the denominator of
311
you should multiply the expression by which fraction?
Complete Question:
To rationalize the denominator of 2√10/3√11 , you should multiply the expression by which fraction?
Answer:
Multiply by [tex]\frac{\sqrt{11}}{\sqrt{11}}[/tex]
Step-by-step explanation:
Given
[tex]\frac{2\sqrt{10}}{3\sqrt{11}}[/tex]
Required
To rationalize
To do this, we simply multiply the expression by the fraction of [tex]\frac{\sqrt{11}}{\sqrt{11}}[/tex]
This gives:
[tex]\frac{2\sqrt{10}}{3\sqrt{11}} * \frac{\sqrt{11}}{\sqrt{11}}[/tex]
[tex]\frac{2\sqrt{10 * 11}}{3\sqrt{11 * 11}}[/tex]
[tex]\frac{2\sqrt{110}}{3\sqrt{121}}[/tex]
Express [tex]\sqrt{121[/tex] as 11
[tex]\frac{2\sqrt{110}}{3*11}[/tex]
[tex]\frac{2\sqrt{110}}{33}[/tex]
Hence:
[tex]\frac{2\sqrt{10}}{3\sqrt{11}}[/tex] = [tex]\frac{2\sqrt{110}}{33}[/tex]