1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mashcka [7]
3 years ago
12

Evaluate: 2(6+4) – 3(5)

Mathematics
2 answers:
Ber [7]3 years ago
7 0

Answer:

5

Step-by-step explanation:

Simplify the expression.

2(6+4) - 3(5)

2(10) - 3(5)

20 - 15 = 5

zmey [24]3 years ago
6 0

Answer:5

Step-by-step explanation:

Add 6 and 4

2*10-3*5

Multiply 2 by 10

20-3*5

Multiply -3 by 5

20-15

Subtract 15 from 20

5

You might be interested in
The number of phone calls that Actuary Ben receives each day has a Poisson distribution with mean 0.1 during each weekday and me
Dovator [93]

Answer:

There is a 0.73% probability that Ben receives a total of 2 phone calls in a week.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given time interval.

The problem states that:

The number of phone calls that Actuary Ben receives each day has a Poisson distribution with mean 0.1 during each weekday and mean 0.2 each day during the weekend.

To find the mean during the time interval, we have to find the weighed mean of calls he receives per day.

There are 5 weekdays, with a mean of 0.1 calls per day.

The weekend is 2 days long, with a mean of 0.2 calls per day.

So:

\mu = \frac{5(0.1) + 2(0.2)}{7} = 0.1286

If today is Monday, what is the probability that Ben receives a total of 2 phone calls in a week?

This is P(X = 2). So:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 2) = \frac{e^{-0.1286}*0.1286^{2}}{(2)!} = 0.0073

There is a 0.73% probability that Ben receives a total of 2 phone calls in a week.

3 0
3 years ago
And animals weight change from 12 pounds to 16 pounds what was the percent increase to the nearest whole number
amm1812
That's a 33% increase.

I calculated this using the formula:

\frac{|n-o|}{o} * 100

Where n = the new value (16 in your question), o = the old value (12 in your question) and the result is outputted as a percent increase.  You can check that this is correct by finding 33% of 12, adding the result to 12, and checking that the result equals your "new" number.  

Note that 33% is only an approximation as your question requires a number rounded to the nearest whole.


5 0
3 years ago
Riley has 78 postcards she wants to put 6 on each poster board. How many poster boards will she need
nirvana33 [79]
13, because 78 postcards divided by 6 cards per board = 13 poster boards 
6 0
3 years ago
Help Me With This Please
Cerrena [4.2K]
8. complementary angles = 90°
3x+3+10x-4 = 90
13x-1 = 90
13x = 91
so x = 91/13= 7
then K = 3(7)+3 = 24°
so L = 10(7)-4 = 70-4 = 66°

9. P is three less than twice of Q
so P = 2Q-3
supplementary angles = 180°

P+Q = 180
(2Q-3)+Q = 180
3Q-3 = 180
3Q = 183
so Q = 183/3 = 61°
then P= 2(61)-3 = 122-3 = 119°

10. B is two more than three times of C so B= 3C+2
complementary angles = 90°

B+C= 90
(3C+2)+C=90
4C+2=90
4C= 88
so C= 22°
then B = 3(22)+2= 66+2 = 68°
8 0
3 years ago
A seal went 15 feet below sea level to catch a fish. A sea lion dove 6 feet less than two times as deep as the seal to catch a l
Ne4ueva [31]
15-6x2=X im not sure if thats right but its what i got
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is 4.62 expressed as the quotient of two integers in simplest form?
    12·1 answer
  • If vacuums cost $249 each, then how many vacuums must a salesperson sell to make a commission of $600 with a 20% commission rate
    13·2 answers
  • END OF GRADING CYCLE AND SO MANY MISSING ASSIGNMENTS PLEASE HELP
    13·1 answer
  • If f(x) = 2x and g(x) = 9x, which of the following statements is true?
    8·1 answer
  • Given an equilateral triangle with two vertices located at (-8, -5) and (3, 7), what is its perimeter?
    13·1 answer
  • The cost of granola varies directly with its weight. Granola cost $0.80 for 8 ounces. Write an equation to find how much any wei
    12·1 answer
  • Will mark as brainliest plz help​
    14·2 answers
  • 15 of 15 Find the size of the final unknown interior angle in a polygon whose other interior angles are: 162°, 115°, 125°, 148°
    9·1 answer
  • A Ferris wheel at an amusement park is modeled by (x – 100)2 + (y – 75)2 = 4,900, where the measurements are in feet. A slingsho
    11·1 answer
  • Which of the following is the domainof the given relation?{(-6, 3), (-4 ,5), (0, 0)}A {0, 4, -6}B {0, 3, 5)C {3, 4, 0}D {-6, -4,
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!