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
vichka [17]
3 years ago
10

SOMEONE PLZ HELP ME DO THIS???

Mathematics
2 answers:
Lelu [443]3 years ago
7 0
First do 48.50-21 then divide that amount by 5. Then that’s how much each pair of socks cost so
48.50-21=27.50
27.50%5=$5.50 so rx=$5.50
son4ous [18]3 years ago
4 0
Answer is explained in the picture


~Hope this helped~

You might be interested in
Find value of cos75 degrees
AfilCa [17]

Answer:

0.258819045...

Step-by-step explanation:

just plug it into a calculator

7 0
2 years ago
Q.6. The equation of the ellipse whose centre is at the origin and the x-axis, the major axis, which passes
azamat

<h3>Answer:</h3>

Equation of the ellipse = 3x² + 5y² = 32

<h3>Step-by-step explanation:</h3>

<h2>Given:</h2>

  • The centre of the ellipse is at the origin and the X axis is the major axis

  • It passes through the points (-3, 1) and (2, -2)

<h2>To Find:</h2>

  • The equation of the ellipse

<h2>Solution:</h2>

The equation of an ellipse is given by,

\sf \dfrac{x^2}{a^2} +\dfrac{y^2}{b^2} =1

Given that the ellipse passes through the point (-3, 1)

Hence,

\sf \dfrac{(-3)^2}{a^2} +\dfrac{1^2}{b^2} =1

Cross multiplying we get,

  • 9b² + a² = 1 ²× a²b²
  • a²b² = 9b² + a²

Multiply by 4 on both sides,

  • 4a²b² = 36b² + 4a²------(1)

Also by given the ellipse passes through the point (2, -2)

Substituting this,

\sf \dfrac{2^2}{a^2} +\dfrac{(-2)^2}{b^2} =1

Cross multiply,

  • 4b² + 4a² = 1 × a²b²
  • a²b² = 4b² + 4a²-------(2)

Subtracting equations 2 and 1,

  • 3a²b² = 32b²
  • 3a² = 32
  • a² = 32/3----(3)

Substituting in 2,

  • 32/3 × b² = 4b² + 4 × 32/3
  • 32/3 b² = 4b² + 128/3
  • 32/3 b² = (12b² + 128)/3
  • 32b² = 12b² + 128
  • 20b² = 128
  • b² = 128/20 = 32/5

Substituting the values in the equation for ellipse,

\sf \dfrac{x^2}{32/3} +\dfrac{y^2}{32/5} =1

\sf \dfrac{3x^2}{32} +\dfrac{5y^2}{32} =1

Multiplying whole equation by 32 we get,

3x² + 5y² = 32

<h3>Hence equation of the ellipse is 3x² + 5y² = 32</h3>
8 0
3 years ago
Find the mean and median of the data. 2, 4, 6, 8, 10, 15, 30
frozen [14]
Mean=10.7
median=8
hope this helps
5 0
3 years ago
Read 2 more answers
Solve the system of equations by graphing. If the system has no solution or infinitely many so state.
S_A_V [24]
The systems will intersect at (1,-4), and i think the system has infinite solutions (not sure)
6 0
3 years ago
tia is planning a sailing party for her friends the boat rental is 15$ plus an additional 15$ per person tia has saved up 400$ w
Brrunno [24]
25 people leaving $15 for the boat rental and that still leaves you a remainder of $10 
8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the measure of E?
    12·1 answer
  • Diagonals AC and BD form right angles at point M
    14·1 answer
  • 18 + x &gt; 40<br> a. x &gt; 58<br> b. x &gt; 22<br> c. x &gt; -58<br> d. x &gt; -22
    14·2 answers
  • The perimeter of a rectangle with a width x and a length that is 3 times the width
    13·1 answer
  • Isolate the variable on the following problem. show your work.<br><br>11z= 4​
    7·2 answers
  • Kinsley took out a loan for $2000 with interest rate of 4.8% to pay off the loan in two years she has to make payments of $100 e
    12·1 answer
  • 6) How are a parallelogram and a trapezoid different?
    15·2 answers
  • Additive inverse of - (-5)
    6·1 answer
  • PLEASE ANSWER !!!
    12·1 answer
  • Solve for u 2(4u-9)=14<br> plzzzz <br> will give brailiest
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!