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
kari74 [83]
3 years ago
15

How do you subtract mixed numbers

Mathematics
1 answer:
saveliy_v [14]3 years ago
4 0
Each mixed number has to be converted to an improper fraction first. Then convert to common denominators.


= 8 5/6 - 2 4/9
convert to improper fractions

= 53/6 - 22/9
find common denominators; both denominators go into 18

= 159/18 - 44/18
subtract numerators

= 115/18
convert back to mixed number

= 6 7/18


ANSWER: 6 7/18

Hops this helps! :)
You might be interested in
Use the line plot below to
Alinara [238K]
1. There were 11 yards mowed. Each yard is represented by an x on the line plot.
2. The most amount of gas used on any one yard was 5/8 of a gallon. The least amount of gas used was 1/8 of a gallon. The difference is (5/8)-(1/8)= (4/8)= 1/2 gallon
7 0
3 years ago
Amy runs 5 miles in 38 minutes how many miles would she run in 57 minutes?
Len [333]
Amy runs 1 mile in 7.6 minutes so in 57 minutes she will have run 7.5 miles
5 0
3 years ago
Find the slope of each line 2-3. please help thank you.
atroni [7]
2)
(-3, 3) (2,0)
slope = (3-0)/(-3-2) = -3/5

3)
y = 3
so slope = 0
7 0
3 years ago
Find, correct to four decimal places, the length of the curve of intersection of the cylinder 16x2 + y2 = 16 and the plane x + y
Yuri [45]

Let the curve C be the intersection of the cylinder  



16x^2+y^2=16



and the plane



x+y+z=1



The projection of C on to the x-y plane is the ellipse



16x^2+y^2=16



To see clearly that this is an ellipse, le us divide through by 16, to get



\frac{x^2}{1}+ \frac{y^2}{16}=1



or  



\frac{x^2}{1^2}+ \frac{y^2}{4^2}=1,



We can write the following parametric equations,



x=cos(t), y=4sin(t)



for  



0\le t \le 2\pi



Since C lies on the plane,



x+y+z=1



it must satisfy its equation.



Let us make z the subject first,  



z=1-x-y



This implies that,



z=1-sin(t)-4cos(t)



We can now write the vector equation of C, to obtain,



r(t)=(cos(t),4sin(t),1-cos(t)-4sin(t))



The length of the curve of the intersection of the cylinder and the plane is now given by,



\int\limits^{2\pi}_0 {|r'(t)|} \, dt



But  



r'(t)=(-sin(t),4cos(t),sin(t)-4cos(t))



|r'(t)|=\sqrt{(-sin(t))^2+(4cos(t))^2+(sin(t)-4cos(t))}



\int\limits^{2\pi}_0 {\sqrt{2sin^2(t)+32cos(t)-8sin(t)cos(t)} }\, dt=24.08778184



Therefore the length of the curve of the intersection  intersection of the cylinder and the plane is 24.0878 units correct to four decimal places.

6 0
3 years ago
A firetruck pulls up next to a burning building that is 25 ft away the ladder operator extends the ladder at a 35 degree angle h
Bogdan [553]
Here u go I drew a diagram to help u visualise

Answer is 30.53 cm

4 0
3 years ago
Other questions:
  • We have been asked to investigate two flights, AA flight and U A flight. Both flights are at 33,000 feet, and the flight paths i
    5·1 answer
  • What kind of number is a negative number?
    9·1 answer
  • A log with a radius of 2.5 feet is rolled up a hill. If it takes 30 seconds to roll the log one complete revolution, approximate
    14·1 answer
  • What’s the answer please
    9·2 answers
  • A 2 pound bag of wildflower send covers 4 square feet how many of seed it takes to cover 1 square foot
    10·1 answer
  • <img src="https://tex.z-dn.net/?f=%28%20-%208x%7D%5E%7B2%7D%20%20-%205x%20-%206%29%20%2B%20%28%20-%20x%20%7B%20%7D%5E%7B2%7D%20-
    12·1 answer
  • Plz help me out ...And pls don’t use my points and don’t say idk sry in the answer’s
    5·2 answers
  • HELP^^ 7TH GRADE MATH
    5·2 answers
  • In 10 words or less, explain what it means for two segments to be parallel.
    14·1 answer
  • Find Y. Do not round answer.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!