Example # 12: The probability that Mary can work a problem is 70%.

Find the probability that Mary cannot work the problem.

HELP PLEASE!!!

Answers

Answer 1

Answer:

the answer is 30% hope this helps you

Answer 2

Answer:

30%

Step-by-step explanation:

The two outcomes (can work the problem and can't work the problem) are complementary.

In probability theory, the complement of any event A is the event [not A], i.e. the event that A does not occur. The event A and its complement [not A] are mutually exclusive and exhaustive.

Complementary events are two outcomes of an event that are the only two possible outcomes.

Complementary outcomes add to 1 or 100%.

100 - 70 = 30.


Related Questions

How would i show the work

Answers

Answer:

I'd recommend writing it out in addition.

Step-by-step explanation:

5 x 12 = 12 + 12 + 12 + 12 + 12 = 60, and so on so forth.

Suppose you deposit $200 in a savings account that earns 4% per year. Find the simple interest earned in 2 years. Then find the total of principal plus interest.

Answers

9514 1404 393

Answer:

interest: $16account total: $216

Step-by-step explanation:

The amount of interest is given by the simple interest formula:

  I = Prt . . . . where P is the amount earning interest, r is the annual rate, t is the number of years

  I = $200·0.04·2 = $16.00

The simple interest earned in 2 years is $16.00.

__

The total of principal and interest is found by adding those values:

  $200.00 +16.00 = $216.00

The total amount is $216.00.

Which type of tax is income tax?​

Answers

Answer:

B.) Progressive

Step-by-step explanation:

Its schedule of marginal tax rates imposes a higher income tax rate on people with higher incomes, and a lower income tax rate on people with lower incomes. The percentage rate increases at intervals as taxable income increases.

It would be B progressive

solve pls brainliest

Answers

Answer:

Mixed number: [tex]2 \frac{1}{100}[/tex]

Improper fraction: [tex]\frac{201}{100}[/tex]

Which graph best represents the solution to the system of equations shown below? y = -4x + 19 y = 2x + 1 A coordinate grid is shown from negative 10 to positive 10 on the x axis and also on the y axis. Two lines are shown intersecting on ordered pair 7, 3. A coordinate grid is shown from negative 10 to positive 10 on the x axis and also on the y axis. Two lines are shown intersecting on ordered pair 3, 7. A coordinate grid is shown from negative 10 to positive 10 on the x axis and also on the y axis. Two lines are shown intersecting on ordered pair negative 3, negative 7. A coordinate grid is shown from negative 10 to positive 10 on the x axis and also on the y axis. Two lines are shown intersecting on ordered pair negative 7, negative 3.

Answers

Answer:

Option 3 is the correct answer.

A coordinate grid is shown from negative 10 to positive 10 on the x axis and also on the y axis. Two lines are shown intersecting on ordered pair negative 3, negative 7.

Step-by-step explanation:

y = -4x - 19 y = 2x − 1

-4x - 19 = 2x - 1

6x = -18

x = -3

y = 2(-3) - 1 = -7

Town B is 8 miles north and 17 miles west of town A. How far are
the two towns apart?

Answers

9514 1404 393

Answer:

  18.8 mi

Step-by-step explanation:

The Pythagorean theorem can be used to find the straight-line distance between the towns. The distances 8 mi and 17 mi form the legs of a right triangle, whose hypotenuse is the straight-line distance.

  d² = 8² +17² = 64 +289 = 353

  d = √353 ≈ 18.8  . . . miles

The two towns are about 18.8 miles apart.

Subtract 11 1/3 - 8 4/5

Answers

[tex]11 \frac{1}{3} - 8 \frac{4}{5} \\ \frac{34}{3} - \frac{44}{5} \\ \frac{38}{15} [/tex]

Solved ◇

A plant was 4/5 meters tall. Then 1/2 meter was cut off. When the height of the plant was last measured it had grown back ​1/10​ meter. What was the height of the plant when it was last measured?

i need this quick plz

Answers

The new height of the plant when it was last measured is [tex]\frac{2}{5}cm[/tex] tall

The initial height of the plant is 4/5 meters tall

If 1/2 meter was cut off, hence the new height of the plant will be expressed as;

[tex]N_h=\frac{4}{5} -\frac{1}{2}\\N_h=\frac{2(4)+5}{10}\\N_h=\frac{8-5}{10}\\N_h=\frac{3}{10}[/tex]

Hence the new height is 3/10

If the height of the plant when last measured had grown back ​1/10​ meter, the height was last measured is expressed as [tex]\frac{3}{10}+ \frac{1}{10}= \frac{4}{10}=\frac{2}{5}[/tex]

Hence the height of the plant when it was last measured is [tex]\frac{2}{5}cm[/tex] tall

Learn more here: https://brainly.com/question/23182815

The new height of the plant when it was last measured is  tall

The initial height of the plant is 4/5 meters tall

If 1/2 meter was cut off, hence the new height of the plant will be expressed as;

Hence the new height is 3/10

If the height of the plant when last measured had grown back ​1/10​ meter, the height was last measured is expressed as

Hence the height of the plant when it was last measured is  2/5 tall

susan and teo play soccer susans team plays every five days and teos team plays every six days when will they play on the same day

Answers

Answer: On day 30

Step-by-step explanation:

1. skip count by both 5 and 6 and look for the first number they have in

   common  5, 10, 15, 20, 25, 30, 35, 40, 45, 50

                    6, 12,18, 24, 30, 36, 42, 48, 54, 60

            30 is the first number in common

                         

To Baker’s plus their contents have a mass of 180.4 g the total mass of the contents is 56.8 g each Baker has the same mess right and solve an equation to find the mass of one bigger

Answers

yes because the guy

15 tan^3x=5tanx,(0,2pi)

Answers

Answer:

steps below

Step-by-step explanation:

15 tan³x=5tanx     .... (0,2π)

5tanx(3tan²x - 1) = 0

tanx = 0            x = π  (0° is excluded)

or 3tan²x - 1 = 0

(√3 tanx + 1) (√3 tanx - 1) = 0

tanx = 1 /√3      x = π/6 (30°)    or    x = 5π/6  (150°)

tanx = - 1 /√3      x = 7π/6 (210°)    or    x = 11π/6  (330°)

Solve by the substitution method
8x + 5y=11
3x + y=16

Answers

Answer:

x=69/7   y=-95/7

Step-by-step explanation:

Write the equation of the line in slope-intercept form. The line is parallel to y+x=3 and passes through the point (−12, 0).

Answers

y = -x + 3

y = -(x + 12)

y = -x - 12

Hello, please help me, rlly need help, Bellaguy08 you better not keep posting scam links!

Answers

Answer:

1/10

Step-by-step explanation:

The default placeholder value for tenths in math is 0.1, or 1/10. the first digit after the decimal point.

The amount of time needed to complete a job, t, varies inversely with the number of workers, w. If 11 workers can complete a job in 36 minutes, how many minutes would it take 6 workers?

Answers

Time T = k/W where k = the proportionality constant and W = number of workers

Find k k = TW = 36(11) = 396
So,
T = 396/6= 66 minutes

Therefore, it would take 66 minutes for 6 workers.

What is the volume of a sphere with a radius of 24 units?
A. 92167 units
O B, 230477 unite 3
O c. 18A324 units
D. 13,8247 units

Answers

Answer:

18A324 units

Step-by-step explanation:

The volume of a sphere is given by where r is  given: The raduis of sphere =24 units  

Then the volume of the given sphere will be

Hence, the volume of given sphere

What is the answer to T=4,500•(1.05)^100?

Answers

Answer:

591755.66030836 was my answer. Hope that helps.

PLEASE HELP!!! WILL GIVE BRAINLIEST!!!!!

Answers

1. Unique solution
3.Infinite solutions
2. No solution
4. No solution
5. 7x+12=7x-3
6. 7x + 12 = 12 + 7x
7. 7x + 12 = 4x + 3

Does anyone know this?

Answers

Step-by-step explanation:

1/2-5/8=6/8=3/4 or 0.75

How many solutions does the equation below have?
2(4x - 1) = -80 – 2

Answers

Answer:

ANSWER IS 78

Step-by-step explanation:

THE ANSWER IS 78

Question in the picture

Answers

Answer:

hope this helps.......

Hey ! Can anyone help me with this please ? Thank you so much .

Answers

9514 1404 393

Answer:

  x = 57

Step-by-step explanation:

Where parallel lines are crossed by a transversal, all obtuse angles are congruent and supplementary to all acute angles, which are also congruent.

  x = 180 -123

  x = 57

please show work if needed if not then just answer:)

Answers

Answer:

Not here.

Step-by-step explanation:

F. The converse of the conditional.

The converse would state the following:

"If it is January, then it is winter in the United States" (Original).

"If it is winter in the United States, then it is January" (Converse).

It is not true, as it can be December, January, or February during the winter season.

G. The inverse of the conditional.

The inverse would state the following:

"If it is January, then it is winter in the United States" (Original).

"If it is not January, then it is not winter in the United States" (Inverse).

Again, as the above states, the winter season encompasses more than just the month of January.

H. The contrapositive of the conditional.

The contrapositive would state the following:

"If it is January, then it is winter in the United States" (Original).

"If it is not January, then it is not winter in the United States" (Contrapositive).

Again, there is more than just January in the winter season.

~

Given the expression -15 (10 2/3) A. Rewrite the expression using distributive property B. Evaluate the expression in show all your work.

Answers

9514 1404 393

Answer:

  -160

Step-by-step explanation:

  -15(10 2/3) = -15(10) +(-15)(2/3) = -150 -30/3 = -150 -10 = -160

The mixed number can be written as the sum of an integer and a fraction. The multiplier then multiplies the integer and the fraction separately, and the two products are added.


2.5% of 2 2/5
is what number?

Answers

Answer:

The number is 0.06, or 6 hundredths.

Step-by-step explanation:

If we convert 2 2/5 to a decimal, we get 2.4

Then, we can convert our percentage to a decimal by moving our digits two units down, giving us .025.

Now, we can multiply 2.4 and .025, which gives us 0.06

The population of a town has been decreasing By 5% each year for the last two years the current population of the town is 1510 people what was the population two years ago

Answers

First start with your starting value which is 1510 and then get the multiplier.. to get the multiplier for a precent decrease you have to subtract it from 100%.. once you’ve got the multiplier you put it into the equation and because it’s asking for 2 years ago you make the exponent -2

9% out of 432 kids want to be lawyers. How many kids did not want to be lawyers?

Answers

Answer:

393.12 kids. This is technically impossible, as you can't have 0.12 of a kid, so I will round down to 393 kids.

Step-by-step explanation:

9% = 0.09

x = amount of kids who want to be lawyers

y = amount of kids who do not want to be lawyers

x = 0.09(432)

x = 38.88

y = 432 - 38.88

y =  393.12

—3x —4 < 2 what is the answer to this

Answers

Answer:

What exactly does the < stand for in your problem?

Step-by-step explanation:

What I got was

-3 x -4 = 12

so it's 12 < 2

Answer:

X>-2

Step-by-step explanation:

im not sure what you want us to do so I solved for the inequality

need help with #10 please

Answers

Answer:

Domain = (infinity, infinity) Range = (3,0)

Step-by-step explanation:

Hard to explain without giving a 15 minute lecture lol

-3(w+4)=4w-5
solve for w

Answers

Answer:

W = -1

Step-by-step explanation:

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