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
timurjin [86]
3 years ago
14

The Three sides of a triangle are, n, 4n-2, 4n-7. if the perimeter of the traingle is 45cm, what is the length of each side?​

Mathematics
2 answers:
kogti [31]3 years ago
4 0

Answer:

52

Step-by-step explanation:

stealth61 [152]3 years ago
3 0
Well to start, we need to combine like terms all the equations together , so
n+ 4n+4n = 9n
-2-7 = -9
put them together and it’s
9n - 9
the perimeter is 45 so
9n - 9 = 45
+9 +9
——————
9n = 54
——————-
9 9
Then the 9 cancels, drop down the n and divide 54/9 and you get

n = 6

and that’s the answer
to prove it
you can do
4(6) - 2 = 22
4(6) - 7 = 17
+ 6 because you just replace the n with 6
Add them...
22+17+6 = 45
and so now we know for sure the value of n is 6!
You might be interested in
Factor the expression completely.<br> 18X2-8
Tcecarenko [31]

18x=2-8

18x=-6

x=-3

that would be my answer if not then ask someone else

3 0
3 years ago
Read 2 more answers
Design an instructional activity that could help learner's recognise the decimal fractions can be applied across environmental s
lapo4ka [179]

An instructional activity that could help learners recognize fractions includes an analog clock, fraction strips, and pattern block.

<h3>What is an instructional activity?</h3>

Instructional activities are routine segments of instruction that show how the teacher and students will participate and interact with materials and content.

An instructional activity that could help learners recognize fractions includes an analog clock, fraction strips, and pattern block. For example, if one wants to teach students about fractional parts that are divided equally into twelfths, the analog clock can be ideal.

Learn more about fractions on;

brainly.com/question/78672

7 0
2 years ago
−7x−3≤ 25
Ivahew [28]

and you graph it from -4 to the right with close circle

Hope this help

8 0
3 years ago
HELP THIS IS FOR TODAY HELP!!!! THANK YOU TO WHOEVER ANSWER'S
Rzqust [24]

Answer:

9,000 feet per minute

Step-by-step explanation:

4 0
3 years ago
If two fractions are between 0 and 1, can their product be more than 1? please explain. Thank You.
notka56 [123]

Answer:

B) always less than either of the original fractions

Step-by-step explanation:

We can easily Answer this by taking some values.

The question states that the two fractions, each have values between 0 and 1.

Let us say one of the fraction is 1/2 and the other fraction is 1/3 .

The product of the two fractions is 1/2 x 1/3 = 1/6 .

is lesser than both 1/2  and 1/3 .

So, the correct answer is that the product is always less than either of the original fractions.

6 0
3 years ago
Other questions:
  • The measure of one acute angle of a right triangle is 12 more than 3 times the measure of the other acute angle. Find the measur
    14·1 answer
  • Please solve this equation 916 1/10 x 4 =
    13·1 answer
  • Please help me with #6 on this Worksheet? (Be Serious) (It’s due tomorrow)
    5·1 answer
  • While at a bakery, Chad decides to purchase some cupcakes and brownies to share with his friends. He can spend no more than $13,
    9·1 answer
  • Free 100 Points<br><br> In return, please thank me (on my profile) :)<br><br> Enjoy!
    13·2 answers
  • What is the equation of the line that passes through the point (6, -6) and has a slope of -5/3?​
    13·1 answer
  • This is beginning review and i for got how to do it pls help me find what x=
    13·1 answer
  • Clear<br>The perimeter of a regular octagon is 88 mm. How long is each side?​
    8·1 answer
  • Please help I'm timed!!
    8·2 answers
  • What is the formula for finding the Volume of a cylinder?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!