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
steposvetlana [31]
3 years ago
13

(-11/20) ÷ (-4/16) =

Mathematics
2 answers:
makvit [3.9K]3 years ago
7 0

Answer:

2.2

Step-by-step explanation:

Pachacha [2.7K]3 years ago
5 0

Answer:

\boxed{\sf \cfrac{11}{5}\:\: or \:\: 2.2}

Step-by-step explanation:

\sf \left(\cfrac{-11}{20}\right)\div \left(\cfrac{-4}{16}\right)

Apply fraction rule:

\boxed{\sf\cfrac{a}{b}\div\cfrac{c}{d}  =\frac{a\times \:d}{b\times \:c}}

\longmapsto\sf \cfrac{-11\times \:16}{20\left(-4\right)}

Cancel the common factor of 16 and 20:

\longmapsto\sf \cfrac{-11\times4}{5\times(-4)}

Cancel common factor of 4 and  −4:

\longmapsto\sf \cfrac{-11}{5\times (-1)}

Multiply 5 by -1:

\longmapsto\sf \cfrac{-11}{-5}

Dividing two negative values gives a positive value:

\longmapsto\sf \cfrac{11}{5}

Or

\longmapsto\sf 2.2

________________________________

You might be interested in
What is the area of this composite figure?<br>A. 135 cm2<br>B. 207 cm2<br>C. 249 cm2<br>D. 279 cm2
mariarad [96]

Answer:

249 cm^2

Step-by-step explanation:

This problem becomes easier if we subdivide the figure, find the areas of the resulting figures and then sum them up.

Draw a vertical line straight down from the edge marked "4 cm" towards the edge marked "18 cm."  The resulting rectangle on the left is 15.5 cm long and (18 - 7.5) cm wide, or 15.5 by 10.5 cm.  Its area is 162.75 cm^2.

Next, find the area of the rectangle on the right of the line we drew.  Its width is 7.5 cm and its height (15.5 - 4) cm, resulting in an area of 86.25 cm^2.

Last, add together these two subareas:  combine 86.25 cm^2 and 162.75 cm^2.  The total area of the composite figure is then 249 cm^2 (answer).

7 0
3 years ago
In the Treasure, Treasure! video game, players gain and lose points by finding and losing treasure. In Level 2, Leslie earned
USPshnik [31]

Answer:

. finding and losing treasure. In level 2, Leslie earned -22 points when a storm blew a treasure chest off her ship. Then, she earned 34 ... a storm blew a treasure chest off her ship. Then, she earned 34 points for finding more treasure on the deserted island. What is the overall change in Leslie's score during level 2? ansver.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
In a bag of 100 marbles comprised of many colors, 25 are blue. suppose marbles are selected at random.
satela [25.4K]

Solution: The number of ways we can arrange 3 blue marbles if a set of 5 marbles is selected is:

\binom{5}{3}=\frac{5!}{(5-3)!3!}

                          =\frac{120}{2 \times 6}

                          =\frac{120}{12}=10

Therefore, there are 10 ways we could arrange 3 blue marbles.

3 0
3 years ago
According to data from a medical​ association, the rate of change in the number of hospital outpatient​ visits, in​ millions, in
GaryK [48]

Answer:

a) f(t)=0.001155[\frac{2}{3}t(t-1980)^{3/2}-\frac{4}{15}(t-1980)^{5/2}]+264,034,000

b) f(t=2015) = 264,034,317.7

Step-by-step explanation:

The rate of change in the number of hospital outpatient​ visits, in​ millions, is given by:

f'(t)=0.001155t(t-1980)^{0.5}

a) To find the function f(t) you integrate f(t):

\int \frac{df(t)}{dt}dt=f(t)=\int [0.001155t(t-1980)^{0.5}]dt

To solve the integral you use:

\int udv=uv-\int vdu\\\\u=t\\\\du=dt\\\\dv=(t-1980)^{1/2}dt\\\\v=\frac{2}{3}(t-1980)^{3/2}

Next, you replace in the integral:

\int t(t-1980)^{1/2}=t(\frac{2}{3}(t-1980)^{3/2})- \frac{2}{3}\int(t-1980)^{3/2}dt\\\\= \frac{2}{3}t(t-1980)^{3/2}-\frac{4}{15}(t-1980)^{5/2}+C

Then, the function f(t) is:

f(t)=0.001155[\frac{2}{3}t(t-1980)^{3/2}-\frac{4}{15}(t-1980)^{5/2}]+C'

The value of C' is deduced by the information of the exercise. For t=0 there were 264,034,000 outpatient​ visits.

Hence C' = 264,034,000

The function is:

f(t)=0.001155[\frac{2}{3}t(t-1980)^{3/2}-\frac{4}{15}(t-1980)^{5/2}]+264,034,000

b) For t = 2015 you have:

f(t=2015)=0.001155[\frac{2}{3}(2015)(2015-1980)^{1/2}-\frac{4}{15}(2015-1980)^{5/2}]+264,034,000\\\\f(t=2015)=264,034,317.7

3 0
3 years ago
Please help and hurry 12 points
schepotkina [342]
I think that D is the answer
8 0
3 years ago
Read 2 more answers
Other questions:
  • The value of y directly varies with x, and y=5.4 when x =9. Find y when x= negative 10
    10·1 answer
  • An ice-cream factory makes 250 quarts of ice-cream in 2 hrs. how many could be made in 36 hrs
    10·2 answers
  • A pizza company makes pizza in three different sizes: small, medium, large. There are four possible toppings: pepperoni, sausage
    5·1 answer
  • What two numbers multiply to -105 and add to 8
    6·1 answer
  • Find the equation of the line passing through the point (1,−5) and perpendicular to y=18x+2
    10·1 answer
  • Lunch is $4 per person, even for the chaperones.
    6·2 answers
  • PLZ HELP!!! Will mark brainliest. I need answer as soon as possible because im being timed! I need b and c. Thank you!
    10·1 answer
  • Minhaoh i need help go to my profile the qustion will be there
    10·2 answers
  • In right angle ABC, a = 12, b = 9, and c = 15. Find tan ∠B
    15·1 answer
  • I’ll give brainliest
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!