Mathematics High School

T. Dr. Sox drives through two stoplights on
her way to work. The first light is green
for 20 seconds out of each minute. The
second light is green for 35 seconds out
of each minute. What is the probability
that Dr. Sox will hit two green lights?

Answers

Answer 1

Question??

Dr. Sox drives through two stoplights on her way to work. The first light is green for 20 seconds out of each minute. The second light is green for 35 seconds out of each minute. What is the probability that Dr. Sox will hit two green lights?

Explanation;

Since this is an AND situation, we MULTIPLY the probabilities.

Answer/Explanation:

First light green:

P

1

=

20

60

=

1

3

Second light green:

P

2

=

35

60

=

7

12

Both lights green:

P

=

P

1

×

P

2

=

1

3

×

7

12

=

7

36

Of course, this is assuming that there is no "green wave" policy, or the two probabilities would not be independent

Related Questions

could someone me please​

Answers

Answer:

0.12 = 1.1 / 9

Step-by-step explanation:

0.12 (2 with a "hat") = 0.12222222222222222222222

0.12 = 1.1/9


Math problem I need help with

Answers

Answer:

31° is the answer thank you

31 degrees Hopefully that helps!

What percent of 700 is 364

Answers

Answer:

52%

Step-by-step explanation:

need help

Evan bought a car. He put $4500 down and pays $325 each month.
Write an expense equation for this situation and find how much he will have paid after 24 months.

Answers

Step-by-step explanation:

So I didnt really understand the beginning but what I did was $325x24=$7800 payed in 24 months if we are adding the $4500 it would be

$7800+$4500=$12300

Step-by-step explanation:

So I didnt really understand the beginning but what I did was $325x24=$7800 payed in 24 months if we are adding the $4500 it would be

$7800+$4500=$12300

HELPPPP PLEASE

1. (28 - 22 ) ÷ ( 17-5)

2. (11 x 2 - 42 ) +4

Answers

Answer:

1) 1/2 2) -16

Step-by-step explanation:

28-22=6

17-5=12

--------------

6/12=1/2

------------

2) (11*2-42)+4=(22-42)+4=-20+4=-16

Answer:

1. 0.5 or 1/2

2.-16

Step-by-step explanation:

What are zeros of x^2-81=0?
I will mark branliest no trolls pls with work would be much appreciated.

Answers

Step-by-step explanation:

x^2=81

x=±9

Answer is -9 and +9

HELP I PROMISE I WILL GIVE BRAINLIEST!!!!!!!!

Answers

Answer: i think d sorry if im wrong.

Step-by-step explanation:

Which is the better deal ‐ $0.20 off of every dollar or 1/4 off every dollar?

Answers

Answer:

1/4

Step-by-step explanation:

Answer:i dont know so sorry

Step-by-step explanation

But i think 1/4  or 0.25

Choose the inequality that represents the given word problem if v = number of video games and m = number
of movies.
At the entertainment store, you purchased some quantity of video games and some quantity of movies. Video games
cost $28 each and movies are $8 each. The total purchase was no more than $80.
A. 28v+8m < 80
B. 28y + 8m 80
C. 28y + 8m2 80
D. 28v+8m > 80

Answers

Answer:

Step-by-step explanation:

lol

HELPPPPPP ASAPPPPPP PLSSS
You bought a Pokemon card at Walmart that costs $5. You found out that it was a rare collectible and that its price was increasing by double every month. How much will the Pokemon card cost after 1 year? (*hint * how many months in a year?)

Answers

Answer:

5^12 = $244,140,625.00

Step-by-step explanation:

Give the equation of the line below: ​

Answers

Answer:

slope = ⅔

y intercept = -2

so

[tex]f(x) = \frac{2}{3}x - 2[/tex]

24. Which expression below is equivalent to x+x+x+x+y+y?
(1) 6x+6y
(3) x* + y2
(2) 4x+2y
(4) 6xy

Answers

(2).




Explanation: 4x+2y

Answer:

4x+2y

Step-by-step explanation:

Which one of these math problems is correct?
A. 50x3=1043
B. 54x6=324
C. 25x4=100
D. None of the above

Answers

Answer:

B and C are correct

Step-by-step explanation:

Use a calculator next time.

Evaluate 12 : (6 – 2) + 12

Answers

Answer: 16

Step-by-step explanation:

6−2+12

=4+12

=16

Answer:

The anwser is 16

Step-by-step explanation:

1 Simplify  6−2  to  4.

4+12

2 Simplify.

16

16

Pls help me I will give brainiess

Answers

hi for 1. i got C
since linear relationships form straight lines and y=mx+b is the slope-intercept form of a linear equation

for 2. i got C
since it is looking for a slope of 2
slope is (rise)/(run) and the only one out of the three that goes up 2 and over 1 is C

Direction: Determine whether each ordered pairis a solution to the given inequality
Write YES if it is and NO if it is not.
An example is done for you
1.2x - 3y >5 NO a. (-1,0)
b. (2.1)
c. (6,2)
2x - 3y > 5
2(-1)-3(0) >5
2-05
-2 > 5
2. 3y + rs 12
c.(-1,-2)
b. (4,6)
a. (3.-2)
False
b. (7,5)
c. (3,-5)
a. (5.-3)
3. y < 3x - 15
Lesson Graphing a Linear Inequality in​

Answers

Answer:

Step-by-step explanation:

1).b).  2x - 3y > 5

   For (2, 1),

   2(2) - 3(1) > 5

    1 > 5

    False.

   So the answer is NO.

c). For (6, 2),

    2(6) - 3(2) > 5

    12 - 6 > 5

    6 > 5

    True.

    Therefore, the answer is YES.

2). a). 3y + x ≤ 12

    For (3, -2),

    3(-2) + 3 ≤ 12

    -6 + 3 ≤ 12

     -3 ≤ 12

     True.

     Therefore, answer is YES.

b). For (4, 6),

    3(6) + 4 ≤ 12

     18 + 4 ≤ 12

     22 ≤ 12

     False.

     Therefore, answer is NO.

c). For (-1, -2),

    3(-2) + (-1) ≤ 12

     -6 - 1 ≤ 12

     -7 ≤ 12

     True.

     Therefore, answer is YES.

3). a). y < 3x - 15

      For (5, -3),

      -3 < 3(5) - 15

      -3 < 0

       True.

      Therefore, answer is YES.

 b). For (7, 5),

      5 < 3(7) - 5

      5 < 21 - 5

      5 < 16

      True.

      Therefore, answer is YES.

  c). For (3, -5),

       -5 < 3(3) - 5

       -5 < 9 - 5

       -5 < 4

        True.

       Therefore, answer is YES.

The Hight of a cylinder shaped container is twice the size of its diameter. if the Hight of this container is 12 cm, which measurement is closest to the volume of the container, in cubic centimeters?

Answers

Answer:

333.29 cm3

Step-by-step explanation:

h-12

d-6

so r= 3

volume is Ab*h= 9 pi* 12= 108 pi which is around 339.29 cm3

if my answer helps please mark as brainliest.

Four people equally shared 1/2 of a meat loaf. What fraction of the whole meat loaf did each person eat

Answers

Answer:

1/8

Step-by-step explanation:

Given that:

Fraction shared = 1/2

Number of people = 4

Fraction shared / Number of people

1/2 ÷ 4 = 1/2 * 1/4 = 1/8

Fraction of the whole meat each got = 1/8

Which situation relates to the graph
A) an ice cream shop sells one scoops of ice cream for two dollars of each additional scoop cost one dollar
B) an ice cream shop sells two scoops of ice cream for two dollars in each additional scoop cost one dollar
C) an ice cream shop sells two scoops of ice cream for three dollars in each additional scoop cost one dollar
D) an ice cream shop sells to scoops ice cream for three dollars each additional scoop cost three dollars
PLEASE HELP ME

Answers

Answer:

C.

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

it is trust me

The scale drawing of a rectangular playground is shown.
27. 24 cm Playground 20 cm
The actual length of the playground is 36 feet. Using the scale drawing of the rectangle, what is the actual width of the playground?

A. 19 feet
B. 30 feet
C. 32 feet
D. 40 feet

Answers

It’s b beacuse of the actual length of the playground is 36 feet using the scale drawing

pls answer this question​

Answers

I can’t see good enough

What is the domain in interval notation of f(x)=(x+3)^2

Answers

Given:

The function is

[tex]f(x)=(x+3)^2[/tex]

To find:

The domain of the given function in interval notation.

Solution:

We have,

[tex]f(x)=(x+3)^2[/tex]

Domain is the set of x-values or input values.

The given function is a quadratic function and domain of the quadratic function is all real number. The function is defined for all values of x. So, domain of the given function is the set of all real numbers.

Domain = Set of all real numbers

Domain = (-∞,∞)

Therefore, the domain of the given function is (-∞,∞).

A new health drink has 150% of the recommended daily allowance (RDA) for a certain vitamin. The
RDA for this vitamin is 20 mg. How many milligrams of the vitamin are in the drink?
There are mg of the vitamin in the drink.

Answers

Convert 150% to a decimal by dividing by 100, = 1.5

Multiply 1.5 times the 20 mg = 30 mg in the drink.

150% is one and a half times a value.

Roberta has $50 in her purse. The money she has left over after buying two boxes of cookies is given by the equation 50 − x = 38, where x represents the cost of two boxes of cookies.

Answers

Answer:

The cookies cost $6 each, and $12 altogether.

Step-by-step explanation:

50-38=12, or x

Help me please if it right I give brainliest I promise

Answers

Answer:

48,400 yd²

Step-by-step explanation:

(220+180)/2*260=52000

1/2(180)(60)=5400

So the total area is 52000+5400=57400

Basketball court=2400

Picnic area = 4200

Playground = 40x50 + 10x40=2400

2400+4200+2400=9000

57400-9000=48400

Answer: Hey I see someone gave you an answer already just wanted to say hi

Step-by-step explanation:

what is an equation to represent for (starfish descends 2/3 of a meter each hour, h, until is has moved 6 total meters.)

Answers

Answer:

100

Step-by-step explanation:

44 - 144

= 100

100-44

[tex]\int\limits^a_b {x} \, dx[/tex]

What is the solution to the equation 4x + 2(x – 3) = 3x + x - 12? (1 point)
1)-3
0 2 -1
3) 1
4) 3

Answers

Answer:

the answer to this problem is -3

how many yards are there in 14 1/2 miles?​

Answers

Answer:

25520 yds

Step-by-step explanation:

Answer:

25,520

Step-by-step explanation:

The formula for yards to miles is that you have multiply the length value by 1760.

So 14.5 * 1,760 = 25,520

Is (3,5) a solution of y>x-3?

Answers

Answer:

no it's not

Step-by-step explanation:

PLEASE HELP

A car is traveling at 80 mph for 5 hrs, how long will it take to travel the same distance at 20 mph?

Answers

Answer:

20 hours.

Step-by-step explanation.

The total distance traveled was 400 miles. Then I divided 400 by 20. I got 20.

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