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
tigry1 [53]
3 years ago
12

Solve each proportion 3/39= y/13

Mathematics
2 answers:
Sphinxa [80]3 years ago
6 0

Answer:

y = 1

Step-by-step explanation:

\frac{3}{39}  =  \frac{y}{13}

Cross multiply

39 = 39y

Divide by 39

y = 1

g100num [7]3 years ago
5 0

Answer:

\boxed {\boxed {\sf y=1}}

Step-by-step explanation:

To solve the proportion, we must solve for the variable. This is done by isolating the variable.

\frac {3}{39}= \frac {y}{13}

The variable, y, is being divided by 13. The inverse of division is multiplication. Multiply both sides of the proportion by 13.

13*\frac {3}{39}= \frac {y}{13}*13

13*\frac {3}{39}=y\\1=y

Another way to solve is by cross multiplying. Multiply the 1st numerator by the 2nd denominator, then the 1st denominator and the 2nd numerator.

\frac {3}{39}= \frac {y}{13}

3*13=39*y\\39=39y

Divide both sides by 39 to isolate the variable.

39/39=39y/39 \\1=y

In this proportion, y is equal to 1.

You might be interested in
Help pls! It’s due soon
Juliette [100K]

Answer:

x1 = -8 and x2 = 9?

6 0
3 years ago
Read 2 more answers
If the sum of a number and seven is doubled, the result is one less than the number. find the number
lawyer [7]
(n + 7)2 = n - 1
2n +14 = n - 1
2n - n +14 = n - n - 1
n + 14 -14 = -1 - 14
n = -15
(-15 + 7)2 = -15 - 1
(-8)2 = -16
-16 = -16
7 0
3 years ago
I need help hdbcjsjfnfnfjfjffdbbfdncndnc
lbvjy [14]
\frac{3}{15k+30} : \frac{6k}{5k^2+30k+40} = \frac{3}{15(k+2)} . \frac{5(k+2)(k+4)}{6k} = \frac{k+4}{6k}
8 0
3 years ago
Question 17, 19 and 21 ?
Vaselesa [24]
If this is Textbook work- use SLADER (the app or the website)
3 0
3 years ago
Help please! 15 pts!
Afina-wow [57]

Answer: attached below

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Ila invested $42,000 into an account earning 4% compounded annually. She makes no other deposits and does not withdraw any money
    15·1 answer
  • What is 6ft to 4 yards as a fraction in simplest form
    12·1 answer
  • Draw the image of ∆ABC under the dilation with scale factor 4 and center of dilation (-3, -4).
    12·1 answer
  • Find the volume of a cube whose surface area is 150Ft
    9·1 answer
  • Write a linear equation from a slope and a point
    12·1 answer
  • Which is the equation of the given line in slope-intercept form? (-1, 2) and (1, -4)
    15·2 answers
  • Solve the equation.<br> 10x-8/3-4x=6x<br> help plz
    9·2 answers
  • Which is the equation of the line that passes through the points (-4, 8) and (1, 3)
    14·1 answer
  • *********************
    15·2 answers
  • A surfer paddles out past breaking waves, rides a wave, paddles back out past the breaking waves, rides another wave back to the
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!