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
Reil [10]
2 years ago
6

Y varies directly as x, y = 15 when x = 5. Find y when x= 6

Mathematics
1 answer:
Alona [7]2 years ago
5 0

Answer:

18

Step-by-step explanation:

y=k×x

15=k×5

=>k=15/5=3

when x=6,

y=3×6

  =18

You might be interested in
Urgent math trig. question. plz help. number 6​
Rom4ik [11]

4x/√16 - X²

=

as a² - b² = (a+b)(a-b)

so

√(4-×)(4+×)

So

as x =

7 0
3 years ago
Help solve equations by completing the square
Allushta [10]

x^2+10x+22=13\\x^2+10x+22-13=0\\x^2+10x+9=0\\

Now completing the square.

(x^2+10x)+9=0\\(x^2+10x+25)+9-25=0\\(x+5)^2-16=0\\(x+5)^2=16

(x+5)² = 16 is the rewritten equation... For first question btw.

For the solutions to the equation -

x+5=\sqrt{16},-\sqrt{16} \\x+5=4,-4\\x=4-5,-4-5\\x=-1,-9

x = -1,-9 is the solution, for the second question.

5 0
3 years ago
Evaluate the expression
Effectus [21]

Answer:

x = - 3

Step-by-step explanation:

note that y = f(x)

locate y = 3 on the y- axis, go horizontally across to meet f(x) at (- 3, 3 ) , then

x = - 3 when f(x) = 3

4 0
2 years ago
A sports store sells three different packs of tennis balls. Brand A costs $2.50 for two balls, brand B sells three balls for $3.
meriva

Answer:

Step-by-step explanation:

sports store sells three different packs of tennis balls. Brand A costs $2.50 for two balls, brand B sells three balls for $3.90, and brand C has a sale of four balls for $5.12. Which inequality about the unit price per ball is correct

Brand A:

$2.50 for 2

Brand B :

$3.90 for 3

Brand C:

$5.12 for 4

We calculate the unit price :

Brand A:

$2.50 / 2 = $1.25

Brand B:

$3.90 / 3 = $1.30

Brand C:

$5.12 / 4 = $1.2

4 0
3 years ago
When a decimal is written in word form, what indicates whether the number can be written as a mixed number or as a fraction less
vekshin1

9514 1404 393

Answer:

  "and"

Step-by-step explanation:

Properly written, the word "and" separates the integer portion from the fractional portion of the number. If there is no "and", then there is no integer portion, so the number is a fraction less than 1.

<u>Examples</u>:

one <em>and</em> three tenths = 1 3/10

thirty-one thousandths = 31/1000

8 0
2 years ago
Other questions:
  • Pleasee someone answer
    12·1 answer
  • WILL MARK BRAINLIEST HELP QUICK Find the sum of the digits of the number 6+66+666+6666 + ... +666...66, where the last number co
    14·1 answer
  • How do you solve 10b-(-b)-9b-7a+10a+5
    7·1 answer
  • For the given functions f and g find the composition:f(x)=x^2+6x-2 g(x)=x-6
    15·1 answer
  • Sin78 ×cos42+cos78×sin42 evaluate without the use of a calculator
    5·1 answer
  • Sadie hiked 37.6km. Sam hiked 0.4 as far. how much farther than Sam did Sadie hike
    15·1 answer
  • (GIVING BRAINLIEST) The Smith family is building a deck that is 200 square feet in area. What are the
    10·1 answer
  • Samuel wants to conduct a customer satisfaction survey for his restaurant. He knows that he must randomly select a sample of his
    6·1 answer
  • I will give u all my brainly points which is 71
    8·1 answer
  • 10.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!