Answer:
The probability is 0.694
Step-by-step explanation:
Let the probability of getting a car washed be
P(W) = 72% = 0.72
Let the probability of getting a car vacuumed be
P(V) = ?
Probability of getting car washed and vacuumed is P(W n V) = 50% = 0.5
From Bayes’ theorem
P(V|W) is the probability that a customer gets their car vacuumed given that they are getting it washed
So mathematically;
P(V|W) = P(V n W)/P(W)
= 0.5/0.72 = 0.694
What is the solution to this equation? 7x + 3 = 10x - 5.4 Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.
Answer:
Step-by-step explanation:
7x + 3 = 10x - 5.4
Bringing like terms on one side
3 + 5.4 = 10x - 7x
8.4 = 3x
8.4/3 = x
2.8 = x
Carlos has a quarter, a nickel, and a penny in his right pocket. In his left pocket, he has
2 blue marbles and a red marble. Which list represents the outcomes if he selects a
coin from his right pocket and a marble from his left pocket?
Answer
D
Step-by-step explanation:
using the elimination method to solve the system of equations.
3x+6y =36
3x-6y=0
a. 3,6
b. 6,-3
c. 6,3
d. 3,-6
Answer:
c. (6, 3)
Step-by-step explanation:
subtract
3x + 6y = 36
3x - 6y = 0
12y = 36, y = 3
3x + 6(3) = 36
3x + 18 = 36
3x = 18, x = 6
x = 6, y = 3
Answer:
the answer is b good luck
Is half the sum of two and a number multiplied by itself three times linear? (and how would I write it as a mathematical expression)
factorize the equation
2b2 - 33b + 16 = 0
Answer:
(2b-1) (b-16)
Step-by-step explanation:
(2b^2-32b)(-b+16)
2b(b-16) -1(b-16)
A recording studio charges musicians an initial fee of $50 to record an album. Studio time costs an additional $75 per hour. Write a linear model that represents the total cost C of recording an album as a function of studio time(in hours). Use the variable t to represent the number of hours the recording studio is used
Answer:
C=$50+$75×T
Step-by-step explanation:
$50 is the amount charged to record an album + 75 amount charged per hour ×T which is how much hours you are going to record an audio.
seven and 15 hundredths as a decimal
Answer:
7.15
I hope this helps!
Paula needed grounded beef to make lasagna for dinner. The ground beef cost $2.09 per pound at Vidalia Market. Write an equation to help Paula determine the total amount, y, she will pay for a given number of pounds of ground beef, x?
A. x = 2.09y
B. 2.09 = y/x
C. y = 2.09x
D. y = x/2.09
Answer:
C
Step-by-step explanation:
2.09x=y
eq C
Hope this helps plz hit the crown :D
Answer:
I think that it is C. y = 2.09x
Step-by-step explanation:
Hope this helped have an amazing day!
What percentage is 26 out of 130?
Answer: 20%
I hope this helps, and Happy Holidays! :)
Answer:
20 percent
Step-by-step explanation:
26/130=0.2
multiply that by 100 equals 20
Helpp I have 50 sec leftttn asappp
Answer:
The answer would be B) 17 1/3
Anan is researching hummingbirds, one of the smallest birds. He measures Hummingbird A 2 3/4 tall while hummingbird B measures 2 4/10 tall. How much larger is hummingbird A than humming bird B?
Answer:
3.5/10 taller
Step-by-step explanation:
3/4 is 0.75 and 4/10 is 0.40
0.75-0.40=0.35
0.35 can also be written as 3.5/10 or 35/100
To be a member of the choir, you must go to an audition. Henry's cousin is a member of the choir. What conjecture can you make about Henry's cousin?
A.) Henry’s cousin practices with the choir
B.) Henry is in the choir
C.) Henry’s cousin went to an audition
Answer:
A) Henry’s cousin practices with the choir
Step-by-step explanation:
becuase it says "Henry's cousin is a member of the choir."
Answer:
Henry’s cousin went to an audition.
Step-by-step explanation:
To solve, Use the law of detachment. In geometry, the law of detachment states that if P leads to Q and P is true, then Q must be true. This is written in a different format, but it is once again a conditional statement.
What are the exact solutions of x2 − 5x − 7 = 0, where x equals negative b plus or minus the square root of b squared minus 4 times a times c all over 2 times a
Answer:
[tex]x = \frac{5 + \sqrt{53}}{2}[/tex] or [tex]x = \frac{5 - \sqrt{53}}{2}[/tex]
Step-by-step explanation:
Given
[tex]x^2 - 5x - 7 = 0[/tex]
Required
Solve for x using:
[tex]x = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}[/tex]
First, we need to identify a, b and c
The general form of a quadratic equation is:
[tex]ax^2 + bx + c = 0[/tex]
So, by comparison with [tex]x^2 - 5x - 7 = 0[/tex]
[tex]a = 1[/tex] [tex]b = -5[/tex] [tex]c = -7[/tex]
Substitute these values of a, b and c in
[tex]x = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}[/tex]
[tex]x = \frac{-(-5) \± \sqrt{(-5)^2 - 4 * 1 * -7}}{2 * 1}[/tex]
[tex]x = \frac{5 \± \sqrt{25 +28}}{2}[/tex]
[tex]x = \frac{5 \± \sqrt{53}}{2}[/tex]
Split the expression to two
[tex]x = \frac{5 + \sqrt{53}}{2}[/tex] or [tex]x = \frac{5 - \sqrt{53}}{2}[/tex]
To solve further in decimal form, we have
[tex]x = \frac{5 + 7.28}{2}[/tex] or [tex]x = \frac{5 - 7.28}{2}[/tex]
[tex]x = \frac{12.28}{2}[/tex] or [tex]x = \frac{-2.28}{2}[/tex]
[tex]x = 6.14[/tex] or [tex]x = -1.14[/tex]
Nathan usually drinks 38 ounces of water per day. He read that he should drink 66 ounces of water per day. If he starts drinking 66 ounces, what is the percent increase? Round to the nearest percent.
Answer:
73.6%
Explanation: 38 is the old value and 66 is the new value. In this case we have a positive change of 73.68... percent because the new value is greater than the old value.
Find an explicit formula for the arithmetic sequence -15, 13, 31, 49
Answer:
No solution (read below)
Step-by-step explanation:
Formula:
a_n = a_1 + (n-1)d
N is the term #
D is the common difference
First, let's find the common difference.
13 - (-15) = 28
Let's see if that checks out.
31-13 = 18
49 - 31 = 18
18 is not equal to 28
Since there is no common difference you cannot find the equation.
Please tell me if you made a typo and comment on my answer, then I can help you find the answer
What is the slope of the linear function
y=5/2x-4
is it
5/2
-5/2
-4
4
Answer:
5/2
Step-by-step explanation:
To find slope, just look directly at what is connected to the X. Don’t worry about anything else
The sum of interior angles of a regular polygon is 1080.Find the size of each exterior angle
Answer:
45
Step-by-step explanation:
Calculation to Find the size of each exterior angle
First step is to calculate the sum of interior angles of a polygon using this formula
Sum of interior angles of a polygon =S=(n-2)*180
Let plug in the formula
Sum of interior angles of a polygon=1080=(n-2)*180
Cross multiply
1080/180=n-2
6=n-2
Add 2 to both sides
6+2=n-2+2
n=8
Now let Find the size of each exterior angle using this formula
Size of each exterior angle=360/n
Where,
n represent numbers of sides of the polygon
Let plug in the formula
Size of each exterior angle=360/8
Size of each exterior angle=45
Therefore the size of each exterior angle will be 45
Answer:
45
Step-by-step explanation:
3x– 2y = -3
y = 7 - 4x
Resolver por sustitución
Answer:
y= 3/2x+3/2 btw add these and that is your answer then y=-4
Step-by-step explanation:
A square has a side length of 2.3cm if the square is dilated by a scale factor of 3 what is the length of the new side
Answer:
[tex]New\ Side = 6.9cm[/tex]
Step-by-step explanation:
Given
[tex]Length = 2.3cm[/tex]
[tex]Scale\ Factor = 3[/tex]
Required
Determine the length of the new side
This is calculated as follows:
[tex]New\ Side = Length * Scale\ Factor[/tex]
Substitute values for Length and Scale Factor
[tex]New\ Side = 2.3cm * 3[/tex]
[tex]New\ Side = 6.9cm[/tex]
Hence, the length of the new side is 6.9cm
Given the arrangement,
* what is the floor’s length? 4x90= ___ cm
* what is the floor’s breadth ___ x 90 = ____ cm
Answer:
the flooor length 360 and the floor breadth 4x90=360
Step-by-step explanation:
please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!
Step-by-step explanation:
the answer is 15
since the triangle is a 90 degree triangle by the square
Answer:
no problem the answer is 15
One angle is five degrees less than three times the degree measure of another angle. Together, the angles measures have a sum of 143°. What is the measure of each angle?
Answer:
a
Step-by-step explanation:
write an equivalent expression using exponents “abaab”
Answer: a to the 3rd power and b to the 2nd power.
Step-by-step explanation:
You could do a*a*a and b*b.
Either way it's a3b2
Answer:
[tex]abaab = a^3b^2[/tex]
.
Step-by-step explanation:
[tex]a^n \times a^m = a^{n + m}[/tex]
There are 4,389 dogwood trees in the state park. The park workers are going to plant 342 more trees. How many trees will there be when they are done?
Answer:
4731
Step-by-step explanation:
4,389+342=4,731
Which us a solution to the followung linear equality?
A. (0, 0)
B. (2, -2)
C. (0, 2)
D. (-3, 4)
Please help I’ll give you brainliest uwu
Tom and Ana are both
botanists studying
flower pollination. In Tom's garden, the
ratio of roses to tulips is 3 : 1. In Ana's
garden, the ratio of roses to tulips is 5 : 2.
0 Part A: Tom's garden and Ana's garden
each have 30 tulips. H&w many more
roses are in Tom's garden than in Ana's
garden? Explain your reasoning.
Part B: Tom and Ana combined their
flowers into a single garden. What is the
ratio of roses to tulips in the combined
garden?
Answer:
A: tom has 15 more roses than ana does.
B: 11:4
Step-by-step explanation:
A: there is a 3:1 and 5:2 ratio of roses to tulips. that means that in tom's, there are 3 roses for every tulip and 5 roses for every 2 tulips in ana's.
we know that they each have 30 tulips so now for Tom.
3:1 so to find roses, we need to multiply the value of tulips to 3.
3×30=90 so we know he has a total of 90 roses.
for ana: she also has 30 tulips. BUT now her ratio is 5:2. so for every 2 tulips she has 5 roses. we need to divide the value of tulips by 2 so 30/2=15 and multiply it by 5, 15*5=75
THAT IS NOT THE ANSWER!! to find the rest of the answer, we have to subtract tom's amount by ana's amount: 90-75=15
B: to find this answer, we have to add all of the roses together and all of the tulips together. roses: 90+75=165. tulips: 30+30=60.
the ratio we get is 165:60. and now we need to simplify it.
Put the following equation of a line into slope-intercept form, simplifying all fractions. 12x+8y=-16
Step-by-step explanation:
join my zoom meeting
id-9384026088
password -1234
Simon leaves home at 10:30am. He has return home before 6:15pm. He has to travel to work, which takes 45 minutes; he is working a four hour shift. He wants to meet some friends after work. His journey to his friends is 10 minutes and his return journey home is 42 minutes. What is the maximum amount of time he can spend with his friends?
Answer:
2 hours and 18 minutes
Step-by-step explanation:
clout chaser don’t use beauty for hype
Beauty is hard to accept when you are seeing it in yourself. This is a valid question to ask, however on this sight not exactly. They obviously believe they are not ugly and other people are saying they are. Models use their beauty for hype so it's not a bad thing. In this case all you are doing is giving this person more attention. Without you this wouldn't have been any of my concern. Instead of posting about someone else keep it to yourself because what you have to say about them is irrelevant. This is a homework site so to slow down the pace of things that aren't don't post stuff like this because you are just adding onto it. Thanks for the points have a great day god bless.
Write the slope-intercept form of the equation of each line given the slope and y-intercept.
Slope: 1/2 , y-intercept=3