PLEASE ANSWER!! Every second, an elevator either has a 50% chance of going up and a 50% chance of going down. If the elevator starts at floor 15, what is the probability that, after 5 seconds, the elevator is at floor 18?
THANK YOU AND SHOW YOUR WORK PLEASE!
Answer:
The number of ways to assing 7 floors to 5 passengers is 7⋅7⋅7⋅7⋅7
Step-by-step explanation:
The probability that, after 5 seconds, the elevator is at floor 18 is 16807.
Every second, an elevator either has a 50% chance of going up or a 50% chance of going down.
If the elevator starts on floor 15.
What is the meaning of arrangement?An act of arranging; state of being arranged
The number of ways to assign 7 floors to 5 passengers is,
We have the arrangements,
= 7⋅7⋅7⋅7⋅7
=16807
To learn more about the arrangement visit:
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On a boat, a cabin's window is in the shape of an isosceles trapezoid, as shown below. What is the area of the window?
An isosceles trapezoid with a top side 12 inches long and a longer bottom side. The height is 13 inches. The base of the triangle formed from the height on the right is labeled 2 inches.
A. 156 square inches
B. 182 square inches
C. 208 square inches
D. 364 square inches
The answer is D
Step-by-step explanation:
12×13×2=312+52=364
Find the perimeter and the area of the polygon with the given vertices.
J(-1, -2), K(-6, -2), L(-6, -8), M(-1, -8)
Answer:
Perameter = 22
Area = 30
Hope this helps.
what divided by 4 is 8?
Answer:
32
Step-by-step explanation:
If the question is x (standing for an unknown number) divided by 4 equals 8, then 8 times 4 should equal that unknown number.
x / 4 = 8
x / 4 (*4) = 8 (*4)
x = 32
We now can replace x with our number and see if this answer is valid.
x / 4 = 8
32 / 4 = 8
And yes, it is true. Therefore, 32 divided by 4 is 8.
I hope this helps! Have a lovely day!! :)
The deli scale weighs meat and cheese in hundredths of a pound. Sam put 5/10 pound of pepperoni on the deli scale. What weight does the deli scale show?
Answer: If we simplify the given weight of the pepperoni, we divide the numerator by the denominator. The answer to the division is 5/10 or 0.5. Then, since the weight is asked in unit of hundredths, the final answer would be 2.5.Â
please help im pretty bad at math so if you could do this ill give brainliest
If I figure out the other answers Ill edit this post
#1
32/4=8
16×1/2×-2=-16
Answer=8×-16=-128
#2
20 ÷ (5 x 2/5) + 3
20 ÷ (2) + 3
10 + 3
Answer=13
Answer:
Q1 = 62
Q2 = 13
Q3 = 6
Q4 = 18
Step-by-step explanation:
Was having trouble looking at the images and couldn't tell if it was a + or a division sign.
A grocer combined peanuts that cost $5.20/lb with walnuts that cost $6.40/lb. How many pounds of each were used to make a 45 pound mixture that cost $6/lb?
Answer:
Step-by-step explanation:
HELP!!! please 50 pt reward!!!!!!
Answer:
Divide 22/5 by 4.4 and multiply by 7
Step-by-step explanation:
Mr math is looking missing pair of socks in the past week and how many socks his missing
heres the reference
Answer:
1/3
Step-by-step explanation:
add the sum of all of the sock, then subtract 8. 24 minus 8 is 16, which is 2/3
please help as soon as possible.
Answer:
Question 3
In 15 minutes, the tortoise walked 400 meters
1 hour ---> 60 minutes
60 minutes is 4 x 15 minutes
4 x 15 // 400 x 4
1 hour // 1600 meters = 1.6 kilometers
the tortoise can walk 1.6 Kilometers per hour
Question 4
2 quart bottle for 2.56$
1 quart = 32 fluid ounces
2 quart = 64 fluid ounces
2.56/64 = 0.04$ per fluid ounce
One-step inequalities
5 stars for correct answers
have a great day
Answer:
x ≤ 40
Step-by-step explanation:
Given:
[tex]\displaystyle \large{\dfrac{x}{-8} \geq -5}[/tex]
Multiply both sides by -8 to get clear out the denominator:
[tex]\displaystyle \large{\dfrac{x}{-8}\cdot (-8) \geq -5\cdot (-8)}\\\displaystyle \large{x\geq 40}[/tex]
Because the LHS (Left-Handed Side) expression is in negative, make sure not to forget to swap the sign from ≥ to ≤
Hence, the solution is x ≤ 40
Given the data presented in the bar graph, which age group represents 25% of the people at the family reunion? A) 10−19 B) 20−29 C) 30−39 D) 50−59
Answer:
B
Step-by-step explanation:
First you find the amount of people at the reunion which was 80. Then you find 25% of 80. 25% of 80 is 20. The only age group with 20 people is the 20-29 year olds.
A right prism has a triangular base. The length of the base is 12 yards and the height of the base is 3 yards. The height of the prism is 3.5 yards.
What is the volume of the prism?
39.5 yd³
52.5 yd³
63 yd³
126 yd³
The volume of prism is,
⇒ V = 126 yards²
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
A right prism has a triangular base. The length of the base is 12 yards and the height of the base is 3 yards. The height of the prism is 3.5 yards.
We know that;
The volume of prism is,
⇒ V = B × H
Where, B is the area of the base and h is the height of the prism.
Hence, We get;
The volume of prism is,
⇒ V = 12 × 3 × 3.5
⇒ V = 126 yards²
Thus, The volume of prism is,
⇒ V = 126 yards²
Learn more about the multiplication visit:
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The fish tank is 80% full. After
adding stones to the bottom of the tank,
the tank is 92% full. What is the volume
of the stones?
Answer:
12%
Explanation
Because the fish tank is 80% and when the stone is put in the water the water is filled 92% so that means that the water rises 12%
Apple decided to walk [tex]9\frac{3}{10}[/tex]mi from his house to the beach. In the first hour, he walked [tex]3\frac{4}{5}[/tex]mi. In the second hour he walked [tex]2\frac{9}{10}[/tex]mi. How much farther did he have to go?
Please show your work!
What is the theorem that states a perpendicular line to the hypotenuse splits the triangle into two similar right triangles?
I forgot and I need this for statement-reason proof. an answer would be appreciated
Answer:Pythagoras
Step-by-step explanation:
Identify Structure Each figure below is made up of congruent trapezoids. Find the area of each figure.
Answer:
12cm
Step-by-step explanation:
The formula to find the area of a trapezoid is A = [tex]\frac{a + b}{2}[/tex]h. We replace the "a" and "b" with 6cm. We then replace the "h" with 12cm as your height is 12cm. The new formula is A = [tex]\frac{a + b}{2}[/tex]h = [tex]\frac{6 + 6}{2}[/tex] x 12. The answer to that equation is 12cm.
PLEASE HELP ME DUE IN 1 MIN WILL GIVE BRAINLIEST, 100 POINTS, AND 5 STARS IF RIGHT!!!!!
Mario walked at a rate of mile every minutes.
What was his walking rate in miles per hour?
Answer: 4mi/h
Step-by-step explanation:
We have that Mario walks 2/3 of a mile every 10 minutes. Representing this as a fraction:
[tex]\frac{2/3}{10} \frac{mile}{minute}[/tex]
Next, you can use something called "dimensional analysis." A dimenision in this case would be the units. The desired units we want are miles per hour, but we are given miles per minute. You can use a few conversion factors to help get to those desired units. In 60 minutes, there is 1 hour. Let's multiply this conversion factor by our original fraction:
[tex]\frac{2/3}{10} \frac{miles}{minute}*\frac{60}{1} \frac{minute}{hour}[/tex]
As you can see above, the units of minutes will cancel. This will leave the units of miles on top, and hours on the bottom. Our units are now miles per hour after simplifying things:
[tex]\frac{2/3}{10}\frac{60}{1} \frac{miles}{hour}=2/3*6 \frac{miles}{hour}=4\frac{miles}{hour}[/tex]
YOU GET BRAINLIEST IF YOU GET THIS RIGHT. ROUND TO THE NEAREST TENTHS PLEASE.
Answer:
26.4
Step-by-step explanation:
they are both corresponding so:
17÷56=8÷x
x=26.4
Answer:
it might be 27 if not 47 im
not completely sure
Step-by-step explanation:
The price of a pair of shoes is $72.00, plus 8% sales tax. What is the sales tax on this pair of shoes in dollars and cents?
A) $5.76
B) $6.56
C)$6.98
D) $7.24
Answer:
A.
Step-by-step explanation:
To find the answer, we have to do 8% of 72.
8% of 72 = 5.76
really thats all whats needed to do the problem
hope this helps :)
Answer:
A)5.76
Step-by-step explanation:
usa test prep
thank you!
Jessica has 3 cards in a bag, each marked with a letter. The letters are X, Y, and Z. Without
looking, she reaches into the bag, pulls out a card, and then puts the card back in the bag. If
Jessica does this 3 times, what is the probability she pulls out the X card first, then the Y card,
and then the Z card?
Answer:
1/27
Step-by-step explanation:
The chance of getting X is ⅓. The chance of getting X then Y is ⅓², or ⅑. Finally, the chance of getting X, then Y, then Z is ⅓³, or 1/27
Answer:
1/27
Step-by-step explanation:
The diameter of a circle is 14 in.
What is the radius of the circle?
A. 7 in
B. 21 in
C. 28 in
D. I don't know.
I believe the answer is 7
Step-by-step explanation:
The radius is like half of the diameter and 14/2=7
Hope this helps
The weather forecast reports that the probability of rain today is 50% and the probability of rain tomorrow is 25%. What is the probability that it will rain on both days?
Answer:
75% of both days combined.
Step-by-step explanation:
75%= day 1 + day 2. (1 day =100%) 75%/200% 75/2=32.5/100
32.5%
PLEASE HELP ME!!!!!!
Answer:
e
Step-by-step explanation:
Question 1:
18 oz = ___ lb
18 oz = 1.125 lb = 1 1/8 = 1 2/16
Third answer
Question 2:
9 oz = ____ lb
9 oz = 0.5652 lb = 9/16 lb
There are 16 ounces in one pound.
Question 3:
13 in = ____ ft
13 in = 1 1/12 ft
There are 12 inches in one foot.
Question 4:
5 in = ____ ft
5 in = 5/12 ft
hope this helps :)
HURRY
Susan has two dogs named Murphy and Fido. She feeds each of them the same type of dog food. Murphy eats 2/3 of a can of dog food each day. Fido eats 1/2 of a can of dog food each day. Each can of dog food costs $1.75. The pet store is offering a sale that allows customers to buy one can of food and get one free. Susan wants to buy a 60-day supply of dog food during the sale. To the nearest cent, what would be the cost of Susan's dog food purchase before tax?
Answer:
$61.25
Step-by-step explanation:
The quantity for a 60-day supply is 60 times the 1-day usage. The BOGO offer means the sale price is effectively half the usual price.
__
One day supply: 2/3 can + 1/2 can = (4/6 +3/6) = 7/6 can
60-day supply: 60 × 7/6 can = 70 cans
Susan will be paying for 70/2 = 35 cans of dog food. (She will get 35 cans free.) So, her cost will be ...
35 × $1.75 = $61.25
The cost of Susan's dog food purchase would be $61.25 before tax.
Halp me i can't fail pt.3
Answer: what’s the problem?
Step-by-step explanation: I can help if you want
Solve the system by graphing.
y = x=1
y=4x+7
The solution is ( _ , _ )
Find the distance between (1, 2) and (-3, 1). Show your work and round your answer to the nearest tenth, if
necessary.
Answer:
7.2
Step-by-step explanation:
Distance formula :
Insert the coordinates to get
Simplify to get 7.280109889 → rounded to the nearset tenth 7.2
Answer:
7.2
Step-by-step explanation:
Distance formula :
Insert the coordinates to get
Simplify to get 7.280109889 → rounded to the nearset tenth 7.2
Step-by-step explanation:
Of all the people at a community swimming pool, 54 are in the water and 66 are not in the water. What percentage of the people at the pool are in the water?
10%
45%
82%
55%
Answer: 45%.
Step-by-step explanation: When you solve problems like these, you need to make the total 100%. The total amount of people at the community pool is 120. 120 can be our 100%. 66 people aren't in the water and 54 are in the water. As you can see, less than half of the total number of people at the community swimming pool is in the water, which means that is 45%. The 66 people who aren't in the water are 55% of the total people that are at the community swimming pool. So in summary, 45% of the total people who are in the community swimming pool are in the water.
Have a great day! :)