Answer:
1/3
Step-by-step explanation:
The probability of an event E in a sample space S is P(E) = desired outcome/total number of possible outcomes.
The probability of encountering a red light at the intersection P(red light on) = time it takes red light to stay on/total time all the lights stay on, where desired outcome = time it takes red light to stay on on route A and total number of possible outcomes = total time all the lights stay on.
Since all the other two lights have to come on after the red light goes off and before the red light comes on again, and the red light has to be on to encounter it at an intersection.
So, P(red light on) = 60 s/(60 s+ 45 s+ 75 s)
= 60 s/180 s
= 1/3
Can anyone help Me with this?
Answer:
Mean is 13.5
Median is 10
Step-by-step explanation:
Answer:
Mean: 13.5
Medain: 10
A military jet flying with the wind travelled 1500 km in 1.5 hrs, but when the plane turned around, it took 1.875 hours to return to its base. Find the rate of the plane in calm air and the rate of the wind. pls solve with 2 variables!
Answer:
With wind = 1000 km /hr
In calm air = 800 km/hr
Step-by-step explanation:
With wind :
Distance traveled = 1500 km
Time taken = 1.5 hours
Speed of plane in air :
Speed = distance / time
Speed = 1500 km / 1.5 hours
Speed = 100 km pe hour
In calm air :
Time taken = 1.875 hours
Distance = 1500 km
Speed of wind in calm air :
Distance / time
1500 km / 1.875
= 800 km/hr
Find the area of a isosceles triangle having the base x cm and one side y cm
Answer: xy/2 cm²
Step-by-step explanation:
An isosceles triangle is a triangle that has two sides out of the three sides to be equal. The area of an isosceles triangle is given as:
= 1/2 × base × height
where,
base = xcm
height = ycm
Therefore,
Area = 1/2 × x × y
Area = xy/2 cm²
Please help.
1) LaTeX: m\angle1=\:\:\:\:\:\:\:\:^\circm ∠ 1 = ∘
2) LaTeX: m\angle2=\:\:\:\:\:^\circm ∠ 2 = ∘
3) LaTeX: x\:=\:\:\:\:m\:\left(exterior\:angle\right)\:=x = m ( e x t e r i o r a n g l e ) =
9514 1404 393
Answer:
Angle 1 = 139°Angle 2 = 41°x = 29; exterior angle = 131°Step-by-step explanation:
These problems let you make use of the fact that the sum of the remote interior angles is equal to the exterior angle.
__
1. 53° +86° = ∠1
139° = ∠1
__
2. ∠2 +92° = 133°
∠2 = 133° -92°
∠2 = 41°
__
3. (x +9)° +93° = (4x+15)°
87 = 3x . . . . . . . . . . . . . . . . subtract x+15°
29 = x . . . . . . . divide by 3
The exterior angle is ...
(4x +15)° = (4·29 +15)° = 131° . . . exterior angle
What is the measure of angle A?*
A.27
B.36
C.63
D.216
Answer:
B. 36
Step-by-step explanation:
Answer:
36 degrees
Step-by-step explanation:
117 + 27 = 144
180 - 144 = 36
solve the inequality
-25/12 ≤ v + 5/3
According to your model, what price should you charge to maximize profit? Explain how you know this is the best price. (Hint: Remember that x represents change in price from $22, not price.) (3 points: 1 point for price and 2 points for explanation)
Answer:
$30 no decimal include in it so the answer is $30what is the slope of a line parallel to each given line y = 4x - 5
Answer:
20???
Step-by-step explanation:
Answer:
4x
Step-by-step explanation:
HELP PLEASE AND THANK YOU
Answer:
0
Step-by-step explanation:
the answer is 0
I REALLY NEED HELP WITH THIS. it’s due at five pm and worth 20 points.
Answer:
[tex]m=\frac{225-135}{5-3} =\frac{90}{2}[/tex]
Step-by-step explanation:
OK i am glad to help.
Slope is [tex]\frac{y2-x2}{y1-x1}[/tex]
So, in the boxes, it is
[tex]\frac{225-x2}{y1-3}[/tex]
Our points are
5,225 and
3,135 so the slope should be
[tex]\frac{225-135}{5-3}[/tex]
This is the answer for the first box.
Second is
[tex]\frac{90}{2}[/tex].
Hope this helps plz hit the crown :D
Answer:
Step-by-step explanation:
225-135 = 90/2
5-3
I give brainlest! 20 points! First place 5 stars and a heart! Second place 4 stars and a heart!
Write the percent as a fraction in simplest form and as a decimal. 36%
The fraction is
The decimal is
Fraction: 36/100 | Simplified: 9/25
Decimal: 0.36
I hope this helps, and Happy Holidays! :)
Answer:
fraction: 36/100 = 9/25
decimal: 0.36
Step-by-step explanation:
The drawing at the right shows a person,
5 feet tall, casting a shadow 3 feet long.
The tree is casting a shadow 15 feet long.
How tall is the tree?
Answer:
I would say the tree is 18 feet tall
Answer: 25 feet tall
Step-by-step explanation:
First, let's take a look at the person. If they are 5 feet tall and cast a shadow of 3 feet, we can easily convert this into a proportion: 5 feet tall: 3 feet shadow.
Continuing with this method, we can convert the tree into a proportion: x feet tall: 15 feet shadow.
So, 5:3=x:15. Mathematically, think of it as 5/3=x/15.
To find x, you will need to multiply 15 to both sides, or perform cross multiplication. (5/3)(15)=(x/15)(15). This will equal 25. The tree is 25 feet tall.
Demons answer this for me.
Answer:
Step-by-step explanation:
if you have negative numbers of x (this means negative meters) then the equation transform them into negative yards.
then replace y by 40yd in the equation like
40 = 1.09x
x = 40/1.09 = 36.7 meters
so in a 40yd race, there are 36.7 meters.
At midnight what temperature is -6C. At midday the temperature is -9C. By how much did the temperature rise ?
Answer:
It didn’t go up, it went down 3 degrees
Step-by-step explanation:
It’s negative degrees so the less negative it is the higher it is.
Answer:
it rose by -3C, or went down 3C
Step-by-step explanation:
Students in Mr. Lewis's class are reading a book that has 280 pages. Ramon decides to read 25% of the book each night. How many pages will Ramon read each night?
Answer:
Ramon will read 70 each night.
Step-by-step explanation:
25% of 280
REMEMBER: "Of" means to multiply
25% x 280
Convert the percent into a decimal
0.25 x 280 = 70
So Ramon will read 70 pages each night.
Hope this helps!!
A small submarine travels at a speed of 2.4 km per hour. How far will the submarine travel in 0.25 hours
Answer:
a
TRUST ME
Step-by-step explanation:
PLEASE MAKE ME BRANLIEST
Answer:
[tex]\boxed {\boxed {\sf A. \ 0.60 \ km}}[/tex]
Step-by-step explanation:
Distance (how far the submarine travelled) can be found by multiplying the speed by the time.
[tex]d=s*t[/tex]
The speed is 2.4 kilometers per hour.
The time is 0.25 hours.
[tex]s= 2.4 \ km/hr \\t= 0.25 \ hr[/tex]
Substitute the values into the formula.
[tex]d= 2.4 \ km/hr * 0.25 \ hr[/tex]
Multiply. Note that the hours (hr) will cancel each other out.
[tex]d= 0.6 \ km/hr *hr[/tex]
[tex]d= 0.6 \ km[/tex]
The submarine travelled 0.6 kilometers in 0.25 hours.
How many natural numbers greater than 6 but less than 60 are relatively prime to 15?
Answer:
7,8,11,13,14,16,17,19,22,23,26,28,29,31,32,34....
Step-by-step explanation:
ANY NUMBERS that are NOT divisible by 5 or 3 basically
Hope it helps!
If the right tail of a dot plot is longer than the left, which of these statements is true about the distribution it represents?
Answer:
D
Step-by-step explanation:
16. Keisha has a bag that contains 3 red, 2 orange, 1 yellow, and 2 purple marbles. She will
randomly choose 1 marble from the bag. What is the probability that Kelsha will choose
an orange marble?
O.
3
8
2
-bh
1
0
8
o
0
1
4
2
Answer:
1/4
Step-by-step explanation:
you add 3+2=5+2=7+1=8 which is the total amount 8. Then the question is asking What is the probability that Kelsha will choose
an orange marble then the orange marble is 2 which is 2/8. Then simplify 2/8 get to 1/4.
I WILL GIVE BRAINLIEST PLEASE.
After an interview, Manahil reached her home at 1305 hrs. If she stopped at the petrol station for 10 mins and then later for 25 mins at Cocochan to pick up some lunch, exactly how long was her journey?
Answer:
well i think add everything up like add 1,305 to 25 and 10 you should hopefully get your answer not quite sure what subject you are on but hope this works.
to convert the ratio of 3:5 to 5:6, which number should be added on both?
The number that should be added on both is 7.
I'LL give brainliest!!
Answer: B
Step-by-step explanation:
option b is the right answer [3]
[tex]2^{2} * 3^{2} * 5 =180[/tex]
mark brainiest
Step-by-step explanation:
Evaluate 5 · (x – 3) when x = 10.

Answer:B. 35
Step-by-step explanation:
replace x with 10. subtract 3 from 10 and you have 7. Then multiply 5 by 7. you have 35. your welcome.
triangle pqr is an iscosceles triangle with the coordinates p(2,3), q(5,10), and r(8,3). what is the area of triangle pqr ?
Answer:
idek
Step-by-step explanation:
Decide whether or not it is possible for a triangle to have three angle measurements or three side lengths given. If it is possible, then decide whether all such triangles are congruent.
Answer:
First one is not possible
Second one is possible, and would be an isocèles triangle
Third one is possible, would be scalene
Last one is not possible
Comment any further questions :)
Step-by-step explanation:
Micah downloads music from an online music store. He pays $1.00 for each song, but if he buys three songs he gets a fourth song for free. Does this relationship have a constant rate of change or a varying rate of change?
Answer: this relationship has a constant rate because the pattern will stay as buy three get the 4th one free
Step-by-step explanation:
Answer:
A varying rate of change.
Step-by-step explanation:
He will have spend 1 dollar for one song, making that point (1,1), 2 dollars for two songs (2,2), 3 dollars for 3 songs (3,3), but when he buys a fourth song, which is free, he has still only spent 3 dollars, making the point (4, 3).
(That's with the amount of songs as the x value and money spent as the y-value)
Help pls, almost out of time
Answer:
angle 1
Step-by-step explanation:
it looks the biggest of all
MATH QUESITON - PLEASE ANSWER ASAP
Please look at the picture below and give me answers to both the questions.
Answer:
16)
Bobby - 70
Hannah - 90 (Wins the round)
Carlos - 80
17)
Bobby - 7 (Wins the round)
Hannah - 3
Carlos - 5
Step-by-step explanation:
First we can make the variable n into each of the values they chose for the equations. Let's start with 16.
The equation is - (3+7) X (10 - n ÷2)
Now let's input the numbers 6 , 2, and 4 one at a time to figure out the answer.
USE PEMDAS!!!
16)
Bobby -
1. (3+7) X (10 - 6 ÷2)
2. 10 X (10 - 6 ÷ 2)
3. 10 X 7
4. Answer for Bobby - 70
Hannah -
1. (3+7) X (10 - 2 ÷2)
2. 10 X (10- 2 ÷2)
3. 10 X 9
4. Answer for Hannah - 90 (Wins the round)
Carlos -
1. (3+7) X (10 - 4 ÷2)
2. 10 X (10 - 4 ÷ 2)
3. 10 X 8
4. Answer for Carlos - 80
17)
Bobby -
1. (2 X 6 + 2) ÷ 2
2. (12 + 2) ÷ 2
3. 14 ÷ 2
4. Answer for Bobby - 7 (Wins the round)
Hannah -
1. (2 X 2 + 2) ÷ 2
2. (4+2) ÷ 2
3. 6 ÷ 2
4. Answer for Hannah - 3
Carlos -
1. (2 X 4 + 2) ÷ 2
2. (8+2) ÷ 2
3. 10 ÷ 2
4. Answer for Carlos - 5
Hope this Helps!!! :)
Let me know if I should change anything or if the answer was perfect!!!
For a given function ƒ(x), the translation ƒ(x – 2) + 3 means the function will shift
Question 6 options:
A)
right 2 and upward 3.
B)
right 3 and upward 2.
C)
left 3 and downward 2.
D)
left 2 and downward –3.
Answer:
A
Step-by-step explanation:
Given f(x) then f(x + a) represents a horizontal translation of f(x)
• If a > 0 then a shift left of a units
• If a < 0 then a shift right of a units
Then f(x - 2) represents a shift to the right of 2 units
Given f(x) then f(x) + c represents a vertical translation of f(x)
• If c > 0 then a shift up of c units
• If c < 0 then a shift down of c units
Then f(x - 2) + 3 is shift to the right of 2 and up by 3 units
Answer:
right 2 and upward 3.
Step-by-step explanation: I took the test
what is the given amount converted to the given units 144 ft; inches
Final Answer: [tex]1728[/tex] inches
Steps/Reasons/Explanation:
Question: What is the given amount converted to the given units 144 ft; inches?
Formula to convert feet to inches: Multiply the length value by 12.
Steps: Multiply 144 by 12
[tex]144[/tex] × [tex]12[/tex] = [tex]1728[/tex] inches
~I hope I helped you :)~