For there to be 1 car, we consider two possible outcomes:
The first door opened has a car or the second door opened has a car.
P(1 car) = 2/6 x 4/5 + 4/6 x 2/5
P(1 car) = 8/15
For there to be no car in either door
P(no car) = 4/6 x 3/5
P(no car) = 2/5
Probability of at least one car is the sum of the probability of one car and probability of two cars:
P(2 cars) = 2/6 x 1/5
= 1/15
P(1 car) + P(2 cars) = 8/15 + 1/15
= 3/5
The present age of ken and tammy are in the ratio of 2:5. In 6 years from now the ages will be in the ratio of 4:7. What are their present ages?
Answer:
Step-by-step explanation:
k=2
t=5
2+6=4 6=2 1=3
2=6
5=15
Now their ages are 6:15
Luke has a board 5/6 of a yard long. He needs to cut the board into 5 equal sections.
Use the expression ____ to find the length of each section.
Each section is ___ yard long.
First person to answer gets 50 brainiest points!
Please I NEED this!!!
Answer:
the answer is 5/6 divided by 5 and 1/6
Step-by-step explanation:
Answer:
the answer is 5/6 divided by 5 and 1/6
An electrician charges a base fee of $65 plus $50 for each hour of work. The minimum the electrician charges is $165. Create a table that shows the amount the electrician charges for 1, 2, 3, and 4 hours of work. Determine the domain and range of the relation in context and explain whether or not this represents a function.
P.S The range values are repeated. So it's a total of 3 range values, and 1 is repeated.
Is there more information so that I solve?
Domain: hours worked
Domain Values: 1,2,3,4
Range: dollars charged
Range Values: 165, 215, 265
The relation is a function. Each domain value is paired with exactly one range value.
A radio station requires DJs to play 2 commercials for every 14 songs they play. What is the unit rate of songs to commercials? songs The unit rate is 1 commercial
The correct answer for this question is that the unit rate is 5:1. We can work this out by simplifying down the 2 commercials to every 10 songs ration, so that 10:2 becomes 5:1. We can work this out by halving the original ratio to simplify it.
A pair of boots costs $130. They are
on sale for $110.50. Find the percent
of change?
Answer:
15% off
Step-by-step explanation:
mark brainliest please
Perform the indicated operation.
Let C =[1
-3 and D= [-1
2] 3
-2
Find C - 4D.
Answer:
Cinema 4d
Step-by-step explanation:
3. What is the slope of 3y - 4x = 12?
Answer: (3,0)
Step-by-step explanation: x=0
3y=12
divide both sides by 3 you get
y=4 now you have y axis ( equation x=0) at the point its (0,4)
but if you put y=0 then you get
4x=12
and then x=3
so i think the answer is (3,0)
I hope this helped :)
me pueden explicar las sumas y restas con punto decimal por favor
Answer:
Para sumar o restar decimales se colocan los números decimales uno debajo del otro, haciendo que coincidan las unidades en la misma columna. De esta manera, también tienen que coincidir las décimas, las centésimas… y la coma.
Step-by-step explanation:
Alison’s age is 16 more than half of Sam’s age. Using S to represent Sam’s age, write an expression that represents Alison’s age
Answer:
(s/2)+16=Alison's age
Step-by-step explanation:
Answer:
1/2S + 16.
Step-by-step explanation:
Compute the estimated regression's prediction for the average score of students given 98, 129, or 159 minutes to complete the exam.
Given 98 minutes, the estimated regression's prediction for the average score of students is 91.94 .
Given 129 minutes, the estimated regression's prediction for the average score of students is 108.37
Given 159 minutes, the estimated regression's prediction for the average score of students is 124.27 (Round your responses to two decimal places.)
Compute the estimated gain in score for a student who is given an additional 32 minutes on the exam.
The estimated gain in score for a student who is given an additional 32 minutes on the exam is (Round your response to two decimal places.)
Answer:
The estimated gain in score for a student who is given an additional 32 minutes on the exam is 16.96
Step-by-step explanation:
The estimated regression prediction is given by:
[tex]\hat{y}=40+0.53x[/tex]
Where x denotes the time
y denotes the average score
A)
Substitute x = 98
[tex]\hat{y}=40+0.53(98) = 91.94[/tex]
B)
Substitute x = 129
[tex]\hat{y}=40+0.53(129) = 108.37[/tex]
C)
Substitute x = 159
[tex]\hat{y}=40+0.53(159) = 124.27[/tex]
D)the estimated gain in score for a student who is given an additional 32 minutes on the exam.
[tex]\hat{y}=40+0.53(x+32)=40+0.53x+9.57=y+16.96[/tex]
So, the estimated gain in score for a student who is given an additional 32 minutes on the exam is 16.96
divide (2x^2-5x-3) by (x-3)
Answer:
2x + 1
Step-by-step explanation:
Answer:
The expression simplifies to [tex]2x+1[/tex]
Step-by-step explanation:
To divide the polynomials, we must first factor the trinomial into binomials so we can easily divide it by the binomial. Factoring [tex]2x^2-5x-3[/tex] results in the expression [tex](x-3)(2x+1)[/tex]. Since these two values are multiplied, the [tex](x-3)[/tex] can be canceled out by the divisor, which is the exact same expression. This leaves us with our final answer: [tex]2x+1[/tex].
Suppose the population of a certain city is 4903 thousand. It expects to decrease to 4113 thousand in 50 years. Find the percentage decrease
Answer:
(3175-4035)/(4035)= -.213 so a 21.3% decrease
Step-by-step explanation:
wish I helped good luck mate
Marcos sells video games that he purchases from a distributor. He buys
each game for $30. If there is a 60% markup, calculate the markup and
selling price.
Answer:
the mark up would be $18. so the total sales price would be $48.
Step-by-step explanation:
There were 150 total movies at the store. They sold 70% of their stock. How many did they se
Answer:
They sold 105 movies.
Step-by-step explanation:
70÷100×150
= 0.7×150
= 105
Hope it helps :)
A hoodie that regularly costs $50 is on sale for $38.
What is the percent decrease in the price of the hoodie?
Answer:
76%
Step-by-step explanation:
38 multiplied by 100 = 3,800
3,800 divided by 50 = 76
Therefore the answer is 76%
Find the value of x for which m\\n
In first situation= =given angle + x=sum of angle of triangle. =110°+x=180°=70° X=70° Similarly, 2. condition can be solved i.e-x=144° There you go! Have a awesome day.
What is the correct next step to solve 3+2m=4m+1
A 3=2m+1
B 3+6m=1
C 3=6m+1
D 4=6m
Jacob's hourly salary is $11.00. If Jacob works more than 40 hours a week, then Jacob gets overtime pay at 1 and 1/2 times the regular hourly rate for each hour worked over 40 hours. Last week, Jacob worked 49 hours. What was the total pay last week?
Answer:
588.50
Step-by-step explanation:
11.00 x 40 = 440
16.50 x 9 = 148.5
Which statement best describes the rate of change for this situation
please help me solve this problem.. Piecewise Functions
Answer:
There is No solution to the question above.
Answer:
103
Step-by-step explanation:
Since x= 10, we need to use the second piece of the function x^2+3
f(x) = x^2 +3
Let x=10
f(10) = 10^2 +3
= 100 +3
= 103
X+y=6 in slope intercept form
What is the least common multiple of 14 and 24?
Answer:
168
Step-by-step explanation:
Answer:
168
Step-by-step explanation:
24*7=168
14*12=168
Complete the multiplication table
Answer:
the top empty box is 5 the second down box is 4 the box under 6 is 8
Step-by-step explanation:
0.11+12.74(x+3)=0.08+13.49
Answer:
x = 2.210526316
Step-by-step explanation:
Answer:
[tex]x = −1.9434851[/tex]
Step-by-step explanation:
[tex]0.11 +1 2.74(x + 3) = 0.08 + 13.49 \\ 0.11 + 12.74x + 38.22 = 0.08 + 13.49 \\ 12.74x + 38.33 = 13.57 \\ 12.74x = 13.57 - 38.33 \\ 12.74x = −24.76 \\ \frac{12.74x}{12.74} = \frac{ - 24.76}{12.74} \\ x = −1.9434851[/tex]
During the 2017 Major League Baseball season, the Detroit Tigers played 162 games . They lost 34 more games than they won. What was the teams win-loss record? Help me please .
Answer:
win: 64
loss: 98
Step-by-step explanation:
win: x
loss: x + 34
win + loss = total games
x + x + 34 = 162
2x + 34 = 162
2x = 128
x = 64
win: 64
loss: (64) + 34 = 98
how many quarts are there in 20 pints
Answer:
Since 1 quart is 2 pints, there are 10 pints in 20 quarts.
Step-by-step explanation:
Answer:
There are 10 quarts in 20 pints
Step-by-step explanation:
1 pint is equal to 0.5 quarts, So if you multiply 0.5 by 20, you get 10.
What is
1
,
318
×
27
?
Answer:
1,8586
Step-by-step explanation:
I need help please! The one from mr.squarepants pls it’s due today !!!
Answer:
He needs to work 8.25 hours more.
Step-by-step explanation:
2.25 + 3.50 (3 1/2) - 5.75
5.75 + 6 = 11.75
20 - 11.75 = 8.25
Answer:
8.25 more hours.
Step-by-step explanation:
2.25+3 1/2+6=11.75
Then:
20-11.75=8.25
Can y’all help plz hurry
1.34x=4.02
2x-5=1
Answer:
So the second one is 3
The first one is 3
Step-by-step explanation:
You just divide the first one 4.02/1.34
The second one
1) 2x-5=1
2) add 5 on to both sides= 6
3) divide 2 by 6 = 3
can you divide 2 by 9 explain your response
Answer: Yes you can but it would be the same as dividing 10 by 3, it would just be a repeating fraction
Answer:
I can’t divide 2 by 9 because the number 9 is greater than 2. In other words, there are no 9s in 2
Step-by-step explanation: