im so confused-
Of the two lights on Dexter Street, the probability of the lights being red is 20% for the first light and 30% for the second light. If a car is driving down Dexter Street, what is the probability that it does not get stopped at either light?
The probability that it does not get stopped at either light is 14/25.
We have given
Of the two lights on Dexter Street, the probability of the lights being red is 20% for the first light and 30% for the second light.
What is the formula for probability?
The probability of an event A is defined as the ratio of the number of favorable events that occurred in A /total number of events in a sample space
Red light for the first:
The Probability of the red light is 20 out of 100 so you would just find the difference which is 80%.
80/100
Red light for the second:
The Probability of the second red light is 30 out of 100 so you would just find the difference which is 70%.
70/100
The probability of not being stopped at either, multiply across and reduce.
[tex]80/100 * 70/100= 14/25[/tex]
Therefore, The probability that it does not get stopped at either light is 14/25.
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Can someone please answer number 8 for me?
Answer:
i hope its 15 but use photomath
In the expression 4y - 7, evaluate the expression when y = 3
plz answer i need this today :)
Answer:
Step-by-step explanation:
Equation is below
Step 1
4y-7 evaluating
Step 2
4y-7 Substitute y for 3
(4)(3)-7
Step 3
(4)(3)-7 Now simplify
12-7
5
Answer
5
Hope this helps
The dot plot shows the ages of the members in a club.
Select from the drop-down menus to correctly complete the statement.
If the youngest member leaves the club, the mean age of the club members would [increase/decrease/stay the same], but the median age would [increase/decrease/stay the same].
Answer:
Mean would increase
Median would stay the same
Step-by-step explanation:
The mean would increase because the lowest number would not make the mean lower
The median would stay the same because there are three numbers with the value of 48, which is the median, and if 45 is gone, it would stay the same
If the youngest member leaves the club, the mean age of the club members would increase but the median age would stay the same.
What are mean and the median?Mean is the ratio of the sum of all values in a data set to the total number of items in the data set.
The median is the middlemost value in a given data set.
Given that, a dot plot shows the ages of the members in a club,
The mean would increase because the lowest number would not make the mean lower,
The median would stay the same because there are three numbers with the value of 48, which is the median, and if 45 is gone, it would stay the same.
Hence, If the youngest member leaves the club, the mean age of the club members would increase but the median age would stay the same.
Learn more about mean and median, click;
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PLS HELP ASAP WILL GIVE BRAINLIEST!!!!!!!!!
Monica goes to a stationary shop to buy pens and pencils. she has $35 in pocket change, and she's looking to buy pens for $7 each and pencils for $2 each. Write an inequality to describe the possible number of pens and pencils that monica can buy. If Monica can buy 3 pens, what is the maximum number of pencils she can buy?
Can yall tell me what B is? b-7/4=-2/3
Answer:
1 1/12
Step-by-step explanation:
b-7/4=-2/3
First, in an equation like this, you add 7/4 to each side which will look like this:
b-7/4=-2/3
+7/4=+7/4
We add 7/4 to each side of the equation to balance the numbers.
b=+7/4-2/3 (because the minus symbol is in front, we put that)
Before adding we have to find the least common denominator known as LCD.
We find that by first looking at the denominators or the fractions which are 4,3
4,8,\12/,16,20,24.
3,6,9,\12/,15,18,21,24.
We can also find the LCD by multiplying 3 and 4. As you can see in the list, there are 12's in each list of numbers. We use that to change our fractions.
From the number 4 we find out how many times (x) we have to add 4 to get 12. We do 12/4 which is 3. And 12/3 which is 4.
7 x 3 2 x 4
------- - -------
4 x 3 3 x 4
which equals 21/12-8/12. Now that we have a common denominator, we can subtract.
21 8 13
--- - --- = ----- = 1 [tex]\frac{1}{12}[/tex]
12 12 12
I hope this helps, please let me know if I have any incorrections. :D
help me please NOWWW
Answer:
it's b 20+20+25+50+35 =140
What is the total area of the pinwheel?
Answer: A: 10.4 in^2
Step-by-step explanation:
Find the value of x - this is circle segments.
Answer:
ummm 1 i think
Step-by-step explanation:
hope its right
PLEASE HELP
a class of 24 students was asked to identify a team sport in which they have participated their responses are shown in the line plot
A. How many total responses are recorded in the line plot for the five sports
B. What is the total number of students polled
C. Give a possible explanation as to why the answers to part (a) and (b) are diffrent.
Answer:
A) 28
B) 24
C) A and B are different because the students can do more than one sport and it never said that they had to only chose one.
Step-by-step explanation:
The histogram below shows the amount of customers' cell phone bills. Use the histogram to answer the questions.
A. How many people were included in this survey?
B. What is the interval width?
C. How many people's cell phone bills were between $32 and $48?
D. If a person's cell phone bill came to $36, which interval should they be tallied in?
Answer:
i think it is C
Step-by-step explanation:
can u pleaes mark me as brainilest
hope this helps
G.O and his neighbors clear a rectangle area 8 1/2 feet by 6 1/4 feet to plant shrubs. Now they have to decide how many shrubs to plant and how much water to use on the shrubs. shrub planting instructions: each shrub needs an area of about 2 square feet. each shrub will need about 1.25 liters of water a week. how many shubs should G.O plant? how much water will the shrubs need?
Answer:1.25 liters of water
Step-by-step explanation:
Answer:
1.25 liters of water
Step-by-step explanation:
At the book sale, all books cost less than $5.
What is the most expensive a book could be?
Write an inequality to represent costs of books at the sale.
Draw a number line to represent the inequality.
Answer:
$4.99, b<5
Step-by-step explanation:
b<5
most expensive? $4.99 (this could also be $4 depending on how accurate of an answer your teacher wants)
to draw a number line, plot an open point at 5 and draw an arrow to the left.
Group the terms with variables on one side of the equal sign, and simplify.
8t −15 = 32t
Answer:
t = -5/8
Step-by-step explanation:
1.) Add 15 to each side canceling it out on the left
8t - 15 = 32t
+15 +15
2.) Subtract 32 from each side canceling it on the right
8t = 32t +15
-32t -32t
3.) Divide each side by 24 to get the variable
-24t = 15
-24t/-24t = 15/-24t
4.) Simplify by 3
5/-8
t = -5/8
A diesel train traveled to the repair yards and back. It took two hours longer to go there than it did to come back. The average speed on the trip there was 70 km/h. The average speed on the way back was 80 km/h. How many hours did the trip there take?
A) 15
B) 16
C)25
D) 10
again and again help me on this ixl basically grinding points 101
Help Me! How Can I Add The 7 Ordered Pairs To The Graph ( I’ll list them in the bottom )
(10,1) (35,3) (55,5) (90,7) (20,2) (40,4) (70,6) Hehe Sorry For The Writing Btw Here’s A Better Example Or Copy.
Answer:
You need to match up the ordered pairs to the numbers on the graph. For example (35,3) starting with the x axis which is the horizontal and the y axis is the vertical you go 35 places right and 3 places up and dot it. I'm not sure if this is what you mean because you got the (10,1) right also I'm not great at explaining. Hope this helped!
I need halp puh-lease
What is the value of the expression: x2 + y2 + x - y
when x = -1 and y = 3
6
8
12
16
and if u can plz tell why
HEEEEEEEEEEEEEELLLLLLLLLLLLLLLLPPPPPPPPPPPPPPPP
Answer:
3/4.8/5 s your answer... that is option H
Coach Nelson is adding water to a swimming pool. Which units should be used to describe the amount of water Coach Nelson is adding to the swimming pool?
Cubic units
Linear units
Square units
Rectangular Units
Answer:
Cubic units because you are measuring the volume of the pool and
Step-by-step explanation:
Help asap pls. Pls don't answer for points. And also DONT ANSWER TO ASK A QUESTION COMMENT IT. it takes away a chance for people who actually know the answer to answer.
Question: Sally spent 60 minutes studying for a math test. If she spent 25 minutes studying:
1: The IQR would (increase, decrease, or stay the same.)
Data on how much time students studied for the test:
Mean: 75
Min: 30
Quartile 1: 65
Median: 78
Quartile 3: 100
Max: 120
IQR: 35
Answer:
Increase and whats the data for?
Step-by-step explanation:
The following system of equations is graphed below.
Y= 3x - 9
Y= -2x + 1
What is the solution to the system?
A.
(−3, −2)
B.
(−3, 2)
C.
(−2, −3)
D.
(2, −3)
The original cost of the computer is $598. There is a 25% off original price coupon. The buyer is planning to pay in 6 equal monthly payments. How much they pay each month?
Answer:
$74.75
Step-by-step explanation:
$598-25% = $448.5
$448.5/6months = $74.75
$74.75
Have a nice day
if correct will receieve brainly
Help me pls I need it fast
Answer:
I don't know does it fold up or anything?
Step-by-step explanation:
Wren wants to build a box to organize her scrapbook supplies. She has a stencil set that is 12 inches wide that needs to lay flat in the bottom of the box. The supply box must be 2 inches tall. What is the length of the box if the volume is 72 cubic inches?
Answer:
158
Step-by-step explanation:
Answer:
It’s 158
Step-by-step explanation:
please help
please please please
Answer:
2.453 as a decimal and 2/16 as a fraction
Step-by-step explanation:
Not sure how to explain.
please help this is a grade that need to get in fast
Answer:
it should be at C.........
Answer:
C
Step-by-step explanation:
35 is in the middle of the number set from least to greatest.
What is the probability of rolling a 3 on a number cube and tossing tails on a coin?
Answer:
Number cube: 1/6 Tossing tails on a coin: 1/2
A number cube is 6 sided, so the probability would be 1/6.
A coin has 2 sides, heads and tails, so tossing tails would be 1/2.
Using the two-way table, what percentage of the students that like to travel out of state do not like camping? Round to the nearest whole percent.
Likes Traveling Out of State Does Not Like Traveling Out of State Row totals
Likes Camping 52 38 90
Does Not Like Camping 36 74 110
Column totals 88 112 200
30%
33%
36%
41%
to find a percentage of something you take the fraction and multiply it by a hundred
Step-by-step explanation:
step one
to determine what the fraction would be you just read the question:
first you have to see what they want to calculate the percentage of. In this case it's students who like traveling out of state but don't like camping.
88 students like traveling out of state and 36 of those students don't like camping so the fraction you have to use is 36/88
step two
next you multiply your fraction by 100 to calculate your percentage
36/88 ×100= 40.9%
step three
since you have to round to the nearest whole percent your answer would be 41%
Answer:
The Answer is 41%