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
UNO [17]
2 years ago
11

What is the first step to prove that 9n - 4n is divisible by 5?

Mathematics
1 answer:
EleoNora [17]2 years ago
3 0

Answer:

Collect like terms, ie do 9n-4n = 5n ...

5n will then be exactly divisible by 5 as 5n / 5 = n

You might be interested in
What is two thirds cubed
I am Lyosha [343]

Answer:

\frac{8}{27}

Step-by-step explanation:

When you cube a fraction, you cube the top and bottom. Cubing 2 gives us 8 and cubing 3 gives us 27. Their GCF is 1 so that is the simplest form.

5 0
3 years ago
Find the coordinates of the midpoint of the segment whose endpoints are H(10,1) and K(4,7)
zvonat [6]
Hey.
The answer is (7,4).
The change of x is -6. Divide that by two(=-3) and add it to the first x-coord and you get 7.
Do the same for your y-value(change =+6/2= +3) and you'll get 4.
6 0
3 years ago
Pls hurry and helppp NO LINKS
garri49 [273]
The answer is B !!!!!!
5 0
2 years ago
Read 2 more answers
Natalie picked 135 berries in 15 minutes. If she continues picking at that rate, how many total minutes will it take her to pick
Alex777 [14]
Lets focus on what we know first. Natalie can pick 135 Berries in 15 minutes. Lets find out how many berries she can pick per minute.
In order to do so, We have to divide 135 by 15.

135/15=9
This means that Natalie can pick 9 berries per minute. Given that we want her to pick 486, we will need to divide that number by 9 berries to find out how many minutes it will take to get her to that number of berries.

486/9=54

This means that it will take Natalie 54 minutes in order to pick 486 berries. 
5 0
3 years ago
If a 36-foot tree casts a 28-foot shadow at the same time near by building casts a 70-foot shadow, how tall is the building?
Arada [10]
Actual length / shadow ratio is equal
Let the height of the building be x, then
36/28 = x/70
x = (36 x 70)/28 = 2,520/28 = 90.

Therefore, the height of the building is 90 feet.
7 0
3 years ago
Read 2 more answers
Other questions:
  • ∠RQT is a straight angle. What are m∠RQS and m∠TQS?
    13·1 answer
  • The value 5 is an upper bound for the zeros of the function shown below. f(x)=x^4+x^3 -11x^2-9x+18
    15·2 answers
  • Yasmine is serving ice cream with the birthday cake at her party. She has purchased 19 1/2 pints of ice cream. She will serve 3/
    6·1 answer
  • A yard is equal to in length of 3 feet. The function F(y) takes a measurement in yards ( as input) and returns a measurement in
    5·2 answers
  • HELP ASAP PLEASE!!
    10·1 answer
  • 1. Use algebraic identities to evaluate each of the followings
    8·1 answer
  • In 824,795 what digit is in the ten thousand place​
    7·1 answer
  • X-1=0 pls answer me I'll give u 10 points
    12·1 answer
  • Help me!!!!Determine the value of each car after 5 years.
    10·1 answer
  • Katherine is younger than Alexandra. Their ages are consecutive integers.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!