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
stepan [7]
3 years ago
10

PLEASE HELP!! Will mark brainliest, i’m struggling. Please find PR.

Mathematics
1 answer:
kap26 [50]3 years ago
8 0

Answer:

PR = 15

Step-by-step explanation:

            PR = PQ + QR

   10x - 45 = 3 + x + 6  {Combine like terms}

   10x - 45 = 9 + x             {Subtract 'x' from both sides}

10x - x - 45 = 9

      9x - 45 = 9                  {Add 45 to both sides}

             9x  = 9 +45

             9x = 54

               x = 54/9

x = 6

PR = 10x - 45

     = 10*6 - 45

     = 60 - 45

PR = 15

You might be interested in
Simplify: a + 2a + 3a + 4a
oksian1 [2.3K]

You just need to factor a to get

a(1+2+3+4) = 10a

5 0
3 years ago
How to factor that polynomial
professor190 [17]
<h3><u>(1 + 5y)(1 - 5y) is the fully factored form of this polynomial.</u></h3>

This polynomial can be factored using difference of squares.

This polynomial is in the form of a^2 - b^2 = (a + b)(a - b)

Because 1 * 1 = 1, we can use this formula to simplify this polynomial.

1 - 25y^2 = (1 + 5y)(1 - 5y)

We can use FOIL to verify this.

(1 + 5y)(1 - 5y)

1 - 5y + 5y - 25y^2

1 - 25y^2

6 0
3 years ago
7.89 greater or less than 7.189<br><br> 6.030 greater less or equal 6.03
NemiM [27]
7.89 is greater than 7.189,  6.03 is equal to 6.030, because that last zero doesn't really change anything it cancels itself out
5 0
3 years ago
Read 2 more answers
Which pair of fractions and mixed numbers have a common denominator of 20?
Tomtit [17]

Answer:

D 3 3/4 and 7/10

Step-by-step explanation:

A) 2 3/8 and 3/4  

4 goes into 20 evenly but 8 does not

NO

B) 1 5/6 and 2/5

5 goes into 20 evenly but 6 does not

NO  

C) 4 1/3 and 1/4

4 goes into 20 evenly but 3 does not

NO

D) 3 3/4 and 7/10

4 goes into 20 evenly and 10 goes into 20 evenly

YES 3 3/4 = 3 15/20 and 7/10 = 14/20

8 0
3 years ago
A church has 10 bells in its bell tower. Before each church service 7 bells are rung in sequence. No bell is rung more than once
elixir [45]

Answer:

3 Because there are only three bells that aren't being run there for three additional ways that the bells could be rung

4 0
2 years ago
Other questions:
  • When solved correctly, the equation 4x−8−−−−−√=x−5 has solutions of x=3 and x=11.
    9·1 answer
  • 5×70=5×_ tens<br>=___tens=___.
    14·2 answers
  • 2 times the square root of 7 to the 2nd power
    13·2 answers
  • Simplify the expression.
    8·1 answer
  • I asked this question yesterday, but no one answered, and i really need help! it would be nice if u halped :) thank you
    14·1 answer
  • Evaluate the Expression<br> 36<br> 3 x 4
    5·2 answers
  • How to simplify an improper and proper fraction​
    9·1 answer
  • HEEEEEEEEEEEEELLLLLLLLP
    8·1 answer
  • The following figure shows \triangle ABC△ABCtriangle, A, B, C with side lengths to the nearest tenth. Triangle ABC. Side AC meas
    14·1 answer
  • A number is chosen at random from the first 100 positive integers. find the probability that the number is divisible by 5. 1/10
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!