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
Sophie [7]
3 years ago
6

???add up the sides?????

Mathematics
2 answers:
CaHeK987 [17]3 years ago
8 0

Answer:

PR = 20

Step-by-step explanation:

The perimeter is the sum of the 3 sides, thus

4z + z + 3 + 3z + 2 = 45 ← simplify left side

8z + 5 = 45 ( subtract 5 from both sides )

8z = 40 ( divide both sides by 8 )

z = 5

PR = 4z = 4 × 5 = 20

qaws [65]3 years ago
8 0

Answer:

40

Step-by-step explanation:

Using the triangle perimeter formula [P=2(l) + 2(w) / 2]:

45 = 2 (z + 3) + 2 (3z + 2) / 2

45 = 2z + 6 + 6z + 4 / 2

45 = 8z + 10 / 2

45 = 4z + 5

40 = 4z

z = 10

PR

4z

4 (10)

40

You might be interested in
The slope of a line is undefined, and the x-intercept is -7. What is the equation of the line? x = -7 y = -7 y = -7x
e-lub [12.9K]
Answer is <span>x = -7
...................................................</span>
5 0
3 years ago
Read 2 more answers
If the price for 12 cookies is 42 dollars how much would if cost for 1 cookie
Andrews [41]

Answer:

$3.50

Step-by-step explanation:

42 divided by 12 is the price of one cookie.

42 divided by 12 = $3.50

hope this helps :)

7 0
3 years ago
((PLEASEEE HELPP MEE))
andrezito [222]

Answer:

D.

Step-by-step explanation:

In order to eliminate, the numbers must eliminate. If the second equation is multiplied by 3, then the 3 and the -3 can be eliminated. Since it is multiple choice, we can plug in x = 12 and y = 10 to see if they are correct. 12 + 30 = 42 and 24 - 10 = 14, so D is correct.

3 0
3 years ago
How do I graph this slope?
maria [59]
You can use the equation rise over Run you go up 4 and over 6 and you go down 2 and over 8 (im not sure if this helps)
5 0
3 years ago
find the derivative with respect to x of f(x)=4x , and use it to find the equation of the tangent line to y=4x at x= 5
seropon [69]

Answer:

F(x)=4X X=5

F(5)=4X

4(5)

20

Y=4(20)

Y=80

4 0
2 years ago
Other questions:
  • Which statement is true ?
    11·1 answer
  • Each T-shirt that just tease produces cross $1.50 to me they sell their T-shirts for $15 at events what is the markup on the T-s
    9·2 answers
  • The function for finding the population growth in Liverpool is given by f(t) = 35(1.2)t. What is the initial population? 0.2 35
    8·1 answer
  • One serving of spinach contains 20 calories and 3 grams of protein. One serving of eggs contains 150 calories and 13 grams of pr
    9·1 answer
  • 4 divided by 2/3 please I need the answer
    9·1 answer
  • Question 6 (Essay Worth 5 points) Part A: Find a rational number that is between 5.2 and 5.5. Explain why it is rational. (2 poi
    10·1 answer
  • Please help... I will mark the right answer brainiest
    6·1 answer
  • A recipe calls for 1/6 teaspoon of vanilla extract. If the recipe is doubled, then how much vanilla extract is needed?
    6·1 answer
  • in a survey of 1500 people who owned a certain type of car, 1050 said they would buy that type of car again. what percent of the
    10·1 answer
  • 25
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!