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
Deffense [45]
3 years ago
14

(2 x + 1):15=(x-1):7​

Mathematics
2 answers:
vampirchik [111]3 years ago
7 0

Answer:

x=22

Step-by-step explanation:

They are put in ratio form so

\frac{2x  + 1}{15}  =  \frac{x - 1}{7}

so crisscross them

7 (2x+1)=15 (x-1)

14x+7=15x-15(collect the like terms)

14x-15x=-15-7

-x=-22 (divide both sides by -1 to find x)

x=22

GalinKa [24]3 years ago
4 0
(2 x + 1):15=(x-1):7
7(2x+1)=15(x-1)
14x+7=15x-15
14x-15x=-15-7
-x=-22
x=22
You might be interested in
(1 point) The parabola given by the equation y=−x2+10x−23 has its vertex at (h,k) for:
Sunny_sXe [5.5K]

the vertex is (5, 2)

5 0
3 years ago
Find the first four terms of this geometric sequence a1 = 5 And r = 6
Elena-2011 [213]
General term of a geometric sequence is 
a(n)=a(1)×r^(n-1)
a1=5
a2=5×6=30
a3=5×6²=180
a4=5×6³=1080
4 0
3 years ago
Which of the following is the difference of two squares?
JulijaS [17]

Step-by-step explanation:

  • ATTACHED IS THE SOLUTION!

8 0
1 year ago
15-3+2<br> What’s the answer and why?
Charra [1.4K]

Answer:

10

Step-by-step explanation:

Apply the DMAS rule.

3 0
3 years ago
Read 2 more answers
Use the trend line to predict what the value of variable N will be when variable M equals 50.
ahrayia [7]

Answer:

N = 10

Step-by-step explanation:

Normally the coordinate system goes:

x axis (horizontal)

y axis (vertical)

Here, we have:

Horizontal axis as "M", and

Vertical axis as "N"

We want to know what N will be when M equals 50.

So, we look at the x-axis and go to M equals 50.

Then we move up until the "trend line". The intersection.

If we move directly left to vertical axis (N variable), we see that it is at the point:

N = 10

So,

When M = 50, N = 10

8 0
3 years ago
Other questions:
  • F(x)=x2+5x-1 is shifted 3 units left the result is g(x) what is g(x)?
    8·1 answer
  • Jennifer made 5 liters of punch for her party. Her brother made another 750 mL. If they combine the two batches, how many 180mL
    9·1 answer
  • Does the word each sometimes suggest division?
    5·1 answer
  • Question up there. ^<br> |<br>​
    12·1 answer
  • 3/8 multiplied by 4/11
    8·2 answers
  • A non-repeating, non-terminating decimal is a(n) ______________ number.
    11·1 answer
  • What is the value of -2(x + 3)
    8·1 answer
  • X 3,4,5,6
    13·1 answer
  • I need the answer. Thank you
    13·1 answer
  • I just need the answers, u dont have to show ur work if u dont want
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!