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
melamori03 [73]
3 years ago
10

Subract 5 5/21 from 13 1/7

Mathematics
2 answers:
astraxan [27]3 years ago
8 0

Answer:

7 19/21

Step-by-step explanation:

13 1/7 - 5 5/21

Get a common denominator

13 1/7*3/3 - 5 5/21

13 3/21 - 5 5/21

We need to borrow 1 from the 13 in the form of 21/21

12 +21/21 + 3/21   - 5 5/21

12 24/21 - 5 5/21

7 19/21

Sladkaya [172]3 years ago
7 0

Answer:

The answer is 166/21, or 7 19/21

Step-by-step explanation:

First, you would set up the equation, which is:

13 1/7 - 5 5/21

Next, you would turn them into an improper fraction, which is:

92/7 - 110/21

Then, you would multiply 92/7 by 3/3 because that is the least common multiple for 21 and 7 (which are the denominators). When you are done multiplying, the equation would be:

276/21 - 110/21

Afterwards, you would subtract the numerators and leave the denominators alone, which gives you the answer 166/21. As a mixed number, this would equal 7 19/21.

You might be interested in
6^2 + 3 √9 show work
professor190 [17]

Answer:

45

Step-by-step explanation:

6^2 + 3√9

=36 + (3 x 3)

=36 + 9

= 45

4 0
3 years ago
Read 2 more answers
Two birds sit at the top of two different trees. The distance between the first bird and a bird-watcher on the ground is 14.1 fe
Harman [31]
Use the trig ratio which gives you the most information. Here we have opposite and hypotenuse relative to angle x, so think sin( x ) = 14.1 / 27.9<span>Now we want to solve for x, but x is stuck inside the sine function
So how do we do this?
We can 'undo' the sine function by using the inverse sine. apply the inverse Sin to both sides of the equation.
sin^-1 ( sin(x) ) = sin^-1 ( 14.1 / 27.9)
the left side 'cancels' , leaving you with x
x = sin^-1 ( 14.1 / 27.9)</span><span>Now you need a calculator.
Make sure you are in degree mode.
Calculators can give you answer in radian or degree.
If you get a decimal answer, you are probably in radian mode.
Round up if you want nearest hundredth
30.3563 ≈ 30.36
Round up again if you want nearest tenth
30.36 ≈ 30.4
Hope this helps! :)


</span>
7 0
3 years ago
Multiply using an area model or the distributive property. "So my question is how do I put this."
Leni [432]
.73 times 3

cmon now thats common knowledge
7 0
4 years ago
Read 2 more answers
PLEASE ASAP GIVING BRAINLIEST
Elodia [21]

Answer:

29.7cm²

Step-by-step explanation:

The area of the shaded region = area of rectangle - area of circle

Area of rectangle:

A=lw

=7*5

=35cm²

Diameter of circle is 2.6cm. Radius is half diameter: 2.6/2=1.3cm

Area of circle:

A=πr²

=(3.14)(1.3²)

=5.3066cm²

35 - 5.3066 = 29.6934cm²

8 0
3 years ago
Read 2 more answers
Sophia's school took a field trip. a total of 21 vehicles were needed for the trip. some students took the bus, and some student
Liono4ka [1.6K]
Let x be the number of buses, and y the number of cars.
\left \{ {{x+y=21} \atop {30x+4y=318}} \right.
We can solve for y in the first equation to get:
y=21-x
Now we can replace 21-x in our second equation, and solve for x:
30x+4(21-x)=318
30x+84-4x=318
26x=234
x= \frac{234}{26}
x=9

We can conclude that 9 buses were needed for the trip.
4 0
4 years ago
Other questions:
  • How long is a billion seconds?
    13·2 answers
  • Graph the equation. Label the points where the line crosses the axes. What are the points How do i even get the points? y = x +
    15·1 answer
  • A company sells kitchen toys for kids, including artificial carrots that are cone shaped with a radius of 1 cm and a height of 6
    14·1 answer
  • Does the graph represent a function and if so, why?
    13·1 answer
  • Samuel is going to invest in an account paying an interest rate of 5% compounded
    13·2 answers
  • 1. Write a two-column proof for the following conjecture. You may not need to use all of the rows of the two-column table provid
    9·1 answer
  • A cup of coffee with temperature 125°F is placed in a freezer with temperature 0°F. After 5 minutes, the temperature of the coff
    7·1 answer
  • Which of the following is equivalent to 16 kilograms?
    12·2 answers
  • Find the surface area of this cube. Be sure to include the correct unit in your answer.
    15·1 answer
  • Dpf-sdzm-tdo = common girls<br>​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!