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
kozerog [31]
3 years ago
10

Can someone tell me how to do it, i have more problems like this​

Mathematics
1 answer:
BigorU [14]3 years ago
4 0

Answer:

\large\boxed{\dfrac{7n}{30}=\dfrac{7}{30}n}

Step-by-step explanation:

\dfrac{2n}{5}+\left(-\dfrac{n}{6}\right)=\dfrac{2n}{5}-\dfrac{n}{6}

To subtract both fractions we need a common denominator.

LCD=(5)(6)=30

\dfrac{2n}{5}=\dfrac{2n\cdot6}{5\cdot6}=\dfrac{12n}{30}\\\\\dfrac{n}{6}=\dfrac{n\cdot5}{6\cdot5}=\dfrac{5n}{30}

Therfore

\dfrac{2n}{5}-\dfrac{n}{6}=\dfrac{12n}{30}-\dfrac{5n}{30}=\dfrac{12n-5n}{30}=\dfrac{7n}{30}=\dfrac{7}{30}n

You might be interested in
A turtle swims at a speed of 1584 meters per hour. A girl swims at a speed of 1380 millimeters per second how much faster does t
d1i1m1o1n [39]
The turtle swims faster. In fact, the turtle swims 812 cm/min faster. 

5 0
2 years ago
Read 2 more answers
167 students are taking the SAT in my high school this morning,
pychu [463]

Answer:

69

Step-by-step explanation:

167-152=15

This is the number of people that only brought pens

167-84=83

This is the number of people that only brought pencils.

167-15-83=69

This is the number of people that brought both pencils and pens.

6 0
2 years ago
*IN YOUR OWN WORDS* <br>Summarize the constant of proportionality.<br><br>​
Lilit [14]

Answer: <em>Constant of proportionality is the constant value of the ratio between two proportional quantities. Two varying quantities are said to be in a relation of proportionality when, either their ratio or their product yields a constant.</em>

Step-by-step explanation:

To find the constant of proportionality, we use the formula k=y/x. So we have k=20/500 = 0.04.

The equation representing this situation will look like y=kx. Substituting in our value of k that we found, we have the equation y=0.04x.

We can use our equation to find the answer to this problem.

6 0
2 years ago
Which describes a situation when an estimation is appropriate? A. Margo wants to buy a sweater for $15.98 and a pair of socks fo
o-na [289]
Yes she has enough money to buy both. 1.98+15.98=17.96 if you subtract that from 20 you get $2.04 back in change

7 0
3 years ago
Factor this please: x^4-9x^2+20
Novosadov [1.4K]
Your answer is (x+2)(x-2)(x^2-5)
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of x?<br> Enter your answer in the box.<br> cm
    8·1 answer
  • Write an equation and solve. Round to the nearest hundredth where necessary.
    14·2 answers
  • If a kitten weighted 2 pounds 3 ounces. A month later the kitten weighted 56 ounces. How much weight did the kitten gain in that
    12·1 answer
  • I need number line answers thanks alot!
    6·1 answer
  • Simplify. 2/ 1/3? i'm not sure what this is that's what the question looks like
    6·2 answers
  • Both coordinates of a point in the coordinate
    14·1 answer
  • Which of these does NOT describe an equivalent ratio or rate? A) 10:35 and 8:28 B) 4:10 and 10:25 C) 40km/h and 0.06 km/min D) 1
    14·1 answer
  • Multiply. Write the answer in the simplest form.<br><br> 4/7 x 4 3/8 x 5/6
    5·2 answers
  • Select the correct answer. Each statement describes a transformation of the graph of y = x. Which statement correctly describes
    8·1 answer
  • Patulong po,thankyou
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!