25% is the percentage of magazines
please help!!! im supposed to find y
How to solve -4-.2x+11=-.8x+10?
Answer:
x = 5
Step-by-step explanation:
-4-0.2x+11=7-0.2x=-0.8x+10
==>
0.6x=3
x=5
Hospital waiting room times are normally distributed with a mean of 38.12 minutes and a standard deviation of 8.63 minutes. What is the shortest wait time that would still be in the worst 5% of wait times? Homework Help: 4VE. Determining values from normal distributions based on probabilities (Links to an external site.) (2:42) 4DC. Using normal distributions and probabilities to determine set values DOCX Group of answer choices 29.49 minutes 52.32 minutes 23.92 minutes 46.75 minutes
Answer:
Step-by-step explanation:
waiting times follow a normal distribution with
Mean, \mu=38.12Mean,μ=38.12
Standard\ deviation,\sigma=8.63Standard deviation,σ=8.63
Longer waiting times are worse than shorter waiting times. Hence the worst 20% of wait times are wait times on the right tail of the distribution. The inferred level of confidence is 0.80.
The z value corresponding to the right tail probability of 0.2 is
Z=0.85Z=0.85
But
Z = \frac{x-\mu}{\sigma}Z=
σ
x−μ
x =Z*\sigma +\mux=Z∗σ+μ
=0.85 * 8.63 +38.12 =45.4555=0.85∗8.63+38.12=45.4555
answer:
the shortest wait time that would still be in the worst 20% of wait times is 45.4555 minutes
X+3y=-2
3x+4y=-6
USE SYSTEMS BY SUBSTITUTION.
X=
Y=
Answer:
X=-2
Y=0
Step-by-step explanation:
X+y=-2 = x=-2-y
3x+4y=-6
3(-2-y)+4y=-6
-6-3y+4y=-6
y=0
x+3(0)=-2
x=-2
Answer:
[tex]\boxed {\boxed {\sf (-2,0)}}[/tex]
Step-by-step explanation:
To solve by substitution we must first isolate 1 variable in an equation.
Let's use the first equation.
[tex]x+3y= -2[/tex]
Subtract 3y from both sides to isolate the variable x.
[tex]x+3y-3y= -2 -3y[/tex]
[tex]x= -2 -3y[/tex]
Now we can substitute the expression (-2-3y) in for x in the second equation.
[tex]3x+4y= -6[/tex]
[tex]3(-2-3y)+4y= -6[/tex]
Distribute the 3. Multiply each term inside the parentheses by 3.
[tex](3*-2)+ (3*-3y)+4y=-6\\-6-9y+4y=-6[/tex]
Combine the like terms on the left side.
[tex]-6-5y= -6[/tex]
Add 6 to both sides to isolate the variable.
[tex]-6+6-5y=-6+6\\-5y=0[/tex]
Divide both sides by -5.
[tex]-5y/-5=0/-5 \\y=0[/tex]
Now we know that y is equal to 0 and can substitute it into the first equation and find x.
[tex]x+3(0)=-2[/tex]
[tex]x+0=-2 \\x= -2[/tex]
x is equal to -2 and y is equal to 0.
у= 3х +2
у= 3х
(please answer!!)
Find the value of x.
x
133°
133°
47°
[tex]\huge\underline\bold\blue{ƛƝƧƜЄƦ}[/tex]
Three angles are given to us and we all know that the sum of four sides of quadrilateral is 360⁰
so
133⁰ + 147⁰ + 47⁰ + x = 360⁰
x = 380⁰ - 367⁰
x = 13⁰
Hope it helps u
Jane is organizing a fundraiser to buy a ping-pong table for the community center. The table costs $500.00. Jane is asking contributors to pay for an equal share of the cost of the table. She already has five contributors lined up. What function models the cost per share, C, with respect to the number of new contributors, n? How many new contributors must Jane recruit in order for the cost of each share to be $20.00?
Answer: 20
Step-by-step explanation: 500\20=25 but she already has 5 contributors so take that off you total answer
um some one help me on this one!
Answer:
x = 32 yd
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightTrigonometry
[Right Triangles Only] Pythagorean Theorem: a² + b² = c²
a is a leg b is another leg c is the hypotenuseStep-by-step explanation:
Step 1: Identify Variables
Leg a = x
Leg b = 24
Hypotenuse c = 40
Step 2: Solve for x
Substitute in variables [Pythagorean Theorem]: x² + 24² = 40²[Subtraction Property of Equality] Isolate x term: x² = 40² - 24²Evaluate exponents: x² = 1600 - 576Subtract: x² = 1024[Equality Property] Isolate x: x = 324. What is the y-intercept of this equation?
y=7X-6
Answer:
-6
Step-by-step explanation:
[tex]y = 7x - 6 \\ \\ equating \: it \: with \\ \\ y = mx + b \\ \\ b = - 6 \\ y - intercept = - 6[/tex]
Find the value of x round to the nearest tenth
Answer:
sin 76 = 13/x
x=13/sin 76
x=13.3979771816
x=13.4
3. Mass changes when gravitational force changes.
A. True
B. False
Answer:
B. False
Step-by-step explanation:
Mass doesn't change when gravitational force changes, but the weight does change.
Answer:
Step-by-step explanation:
True
hope that helps
mark me brill please
Question 2: Sarah is fencing a vegetable garden to keep rabbits out. The hardware store sells
fencing for $25.50/m. Her family has $165 to spend. What dimensions should Sarah use to build a
garden with the greatest area? Round all answers to 2 decimal places.
Answer:
circle with circumference of 6.47m
Step-by-step explanation:
1. $165/$25.50=6.47058823529m
2. she should use a circle because they have the greatest area, the circle should have a circumference of 6.47m.
I neeed helpppppp I attached a photo of the question
Answer:
Step-by-step explanation:
one think
Answer:
option A is correct answer of this question
hope it helps
a red lamp flashes every 10 seconds ,a yellow lamp flashes every 24 seconds and a blue lamp flashes every 30 seconds.How many times will the three lamps flash at the same time in 10 minutes.
Answer:
600x
Step-by-step explanation:
10 x 24x 30 - 10x 60x
NOW I NEED IT RIGHT NOW TAKE UR TIME BUT HURRY ITS LATE AND THEY WILL TAKE POINTS OFF IF ITS NOT DONE TODAY
Answer:
is there a backside to the problems?
Answer:
the. answer to this question is in ur heart
What is the value of cosine (StartFraction 4 pi Over 3 EndFraction)? cos(4pi/3)
A. -square root 3/2
B. -1/2
C. 1/2
D. square root 3/2
Answer:
-square root 1/2 . It is a no c. if the answer is correct plz thank
Help, it's a lot, but will appreciate!
Answer:
Step-by-step explanation:
3: x=9, y=15
4:n=12, m=5
5: a=55
6: p=60
7:z=28, d=126
8: h=9, g=61
9:Angle B=129
10:Angle L=85
11: Angle Y= 61
Which two operations will solve this equation: 4x − 5 = 1
Answer:
4x -5=1
4x= 1+5
x=6/4
x= 1.5
Complete the equation of the line whose slope is -2 and y-(0,8)
Answer:
Equation: y = -2x + 8
Step-by-step explanation:
REMEMBER: The slope intercept form is y - mx + b. In slope intercept form, m is the slope and b is the y-intercept.
There were 5 girls to every boy that attended the Spring Semester Mixer last year. At this rate, how many attended the mixer if 150 girls attended the mixer,
Answer:
150:30
Step-by-step explanation:
It's essentially saying 5:1, 5 girls to one boy.
so with this in mind.
150:x
150/5
30
therefore
150:30
Answer:
30 boys attended the mixer. ( Wow 5 girls for a boy thats alot )
Step-by-step explanation:
1. Divide 150 girls by 5 ( 5 for every boy ) = 30 boys.
Thats it lol.
Btw can I have brainliest if I got it correct please?
Solve the question below
Answer:
Step-by-step explanation:
Angle DAB = angle GAM =62°
Can you guys help me on this math equation 6+2(7x+-3)
Answer:
14x
Step-by-step explanation:
You expand 2(7x+-3) (which seems to be 2(7x-3)):
6+14x-6
the sixes cancel out and you're left with
14x
Answer:
14x
Step-by-step explanation:
6+2(7x-3)
6+14x-6
6+14x-6
14x
the median is the ____ of an ordered data set
A. end
B. the most occurrences of a number
C. middle
D. average
Answer:
C. middle
Step-by-step explanation:
In a science experiment, Katrina needs to know the mass of a seed pod.
She measures the mass of 8 seed pods as 10.4g.
What is the mass of 1 seed pod?
Answer:
1.30g
Step-by-step explanation:
The mass of 8 seed pods is equal to 10.4g.
10.4g = 8 pods
Total mass / Total pods = Individual pod weight
10.4g / 8 pods = 1.30g per pod
Lets check our work to confirm:
1.30g x 8 pods = 10.4g
what is the length LM
A. 6
B. 4
C. 3
D. 2
Answer:
LM = 6
Step-by-step explanation:
use the ratio of corresponding sides
1/3 = 2/LM
LM = 6
Select the correct answer.
Which statement is true about the tangent function?
Ο Α.
The tangent function has a midline but no period and no amplitude.
OB.
The tangent function has a midline and period but no amplitude.
O C.
The tangent function has a period but no amplitude and no midline.
OD.
The tangent function has an amplitude and midline but no period.
Answer:
A or D
Step-by-step explanation:
i did this on khan academy thats why ;)
From the graph, the tangent function has a midline and period but no amplitude.
What is trigonometry?The connection between the lengths and angles of a triangular shape is the subject of trigonometry.
The statements are given about the tangent function.
The graph of the tangent function is given below.
From the graph, the tangent function has a midline and period but no amplitude.
Then the correct option is B.
More about the trigonometry link is given below.
https://brainly.com/question/22698523
#SPJ5
please help mee!! will mark brainliest! "the Kuna Caveman football team won 75% of their games. If they won 9 games, how many games did they play?"
Answer:
12 games
Step-by-step explanation:
Let x be the number of games played
The y won 75% of the games played and that was 9
x * 75% = 9
Change to decimal form
x * .75 = 9
Divide each side by .75
x * .75 /.75 = 9/.75
x =12
They played 12 games
Answer:
Step-by-step explanation:
75g/100=9
g=900/75
g=12
Given that angles ABC ~ DEF, solve for x and y.
What procedures could you use to show that the sun's path in the sky changes over a year? Choose the three correct answers. A. Measure the length of a stick's shadow. B. Place a stick in the ground in a clear area. C. Use different length sticks every week. D. Make a bar chart to show the shadow's length. E. Measure the length of the shadow only once.
Answer:
Its A and D
Step-by-step explanation:
I found that out the hard way
Dividend is equal to :
divisor * quotient - remainder
divisor , quotient
divisor x quotient + remainder
divisor * quotient x remainder
Answer:
divisor × quotient + remainder
Step-by-step explanation:
the dividend is the number thats going to be divided. (for example, 10 crayons divided by 2 people). the formula to find this would be multiplying the divisor by the quotient, and adding the remainder if there is one.
Dividend is equal to:
divisor × quotient - remainderdivisor , quotientdivisor x quotient + remainderdivisor × quotient x remainder✭ Explanation -:To solve this question first we should know the following terms :
[tex] \bull \: \small\sf{ Dividend}[/tex]
A number to be divided by another number.[tex] \bull \: \small\sf{ Divisor}[/tex]
A number by which another number is to be divided.[tex] \bull \: \small\sf{ Quotient}[/tex]
A result obtained by dividing one number by another.The formula for dividend is
[tex] \star \: \small \boxed{\sf{ Dividend = Divisor × Quotient + Remainder }}[/tex]
Hence opition 3) is the correct answer.