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
Korvikt [17]
3 years ago
13

Y varies directly as x. Y=42 when x=6. Find the value of y when x =15.

Mathematics
1 answer:
pentagon [3]3 years ago
4 0

Answer:

y=120

Step-by-step explanation:

Y varies directly as x is written as

y \alpha x

introducing a constant

y=kx

<em>from</em><em> </em><em>the</em><em> </em><em>ques</em><em>tion</em><em>,</em><em> </em><em>whe</em><em>n</em><em> </em><em>y</em><em>=</em><em>4</em><em>8</em><em>,</em><em> </em><em> </em><em>x</em><em>=</em><em>6</em>

<em>sub</em><em>stitute</em><em> </em><em>it</em><em> </em><em>in</em><em> </em><em>the</em><em> </em><em>form</em><em>ula</em>

<em>4</em><em>8</em><em>=</em><em>6</em><em>k</em>

<em>making</em><em> </em><em>k</em><em> </em><em>the</em><em> subject</em><em> </em><em>by </em><em>divi</em><em>ding</em><em> </em><em>thr</em><em>ough</em><em> </em><em>by</em><em> </em><em>6</em>

<em>\frac{48}{6}  =  \frac{6k}{6}</em>

k=48/6

k=8

<em>put</em><em> </em><em>the</em><em> </em><em>va</em><em>lue</em><em> </em><em>of</em><em> </em><em>k</em><em> </em><em>in</em><em> </em><em>the </em><em>expression</em><em> </em><em>y</em><em>=</em><em>kx</em>

<em>y</em><em>=</em><em>8</em><em>x</em>

from the question,the value of y when x=15 is given by

y=8×15

y=120.

You might be interested in
Segment wx is shown Explain how you would construct a perpendicular bisector of wx using a compass and a straightedge
n200080 [17]

Answer:

To perpendicular bisector of line segment WX. There are following steps:

1) Draw arcs or circles from points A and B on the both sides of WX.

2) Name the intersection points as W and X.

3) Use the straightedge to draw a line through points W and X.

4) Name the point as O

hence we have construct perpendicular bisector AB of WX which bisects at O.

4 0
3 years ago
Simplify 4 + (-3) - 2 x (-6 )
sukhopar [10]
If you would like to simplify <span>4 + (-3) - 2 * (-6), you can do this using the following steps:

</span><span>4 + (-3) - 2 * (-6) = 4 - 3 + 2 * 6 = 1 + 12 = 13
</span>
The correct result would be 13.
7 0
3 years ago
Jack says 2÷2=2 and Sam says 2÷2=9 and Paul says 2÷2=1,who is corrcet?<br><br>Hello I am new​
yarga [219]

Answer:

Paul is correct 2 divided by 2 equals 1

Step-by-step explanation:

If you divide 2 by 2 you get 1 because 2×2=4 and 2×1=2

8 0
2 years ago
Please help fast!!! i need this by 3 today
nexus9112 [7]

Answer:

√13 is not a rational number .......

Step-by-step explanation:

<em><u>mark</u></em><em><u> me</u></em><em><u> as</u></em><em><u> brainliest</u></em><em><u> ❤️</u></em>

3 0
3 years ago
Read 2 more answers
X-14
DENIUS [597]

Step-by-step explanation:

it will be 14 times 2 which will be 28 length and 74 plus 74 which will be 148 for the both side wide.

7 0
3 years ago
Other questions:
  • Is this a relation a function
    8·1 answer
  • The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass
    5·1 answer
  • At the grocery store, an 8-inch cherry pie costs $4.39 and a similar 10-inch cherry pie cost $6.15. which is the better deal?
    10·1 answer
  • What is the equation of the line that passes through the point (-4, 2) and has a<br> slope of ?
    9·1 answer
  • Juan is considering two cell phone plans. The first company charges$40 for the phone and $30 per month for the calling plan that
    11·1 answer
  • X = 0<br> x = -1<br> x = -4<br> x = -2<br> x = 1<br> x = 2
    15·1 answer
  • The last question I couldn't fit
    15·1 answer
  • PLS HELP ME ASAP<br> WILL MARK BRAINLIEST
    6·1 answer
  • Another question I hate school​
    13·2 answers
  • Can you Afford to Enlarge this?You each want to have a 3" X 5' picture ofprinted so that you canput it on your dartboard. It cos
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!