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
Mariulka [41]
2 years ago
5

Kay has a playlist of 10 songs. She has time to listen to 4 of the songs on her way to school.

Mathematics
1 answer:
Masteriza [31]2 years ago
8 0

Answer:

40 different arrangements of songs

Step-by-step explanation:

You might be interested in
(v) 4x + x + x - 72<br>(vi) 5+2x---​
Strike441 [17]

(2,-6)+(9,9)

(0,8)x(7,-52)

(2,-6)x (9,9)

this is it Simplified

8 0
3 years ago
A Broadway theater has 400 ​seats, divided into​ orchestra, main, and balcony seating. Orchestra seats sell for $ 80 comma main
Tomtit [17]

Answer:

80 orchestra seats

180 main seats

140 balcony seats

Step-by-step explanation:

Total number of seats = 400

Orchestra seats sell for $80

Main seats sell for $65

Balcony seats sell for $40

If all the seats are sold, gross revenue = $23,700

If all the main seats and balcony seats are sold but only half of the orchestra seats are sold, the gross revenue = $20,500

Let x = Orchestra seats

Let y = main seats

Let z = balcony seats

x+y+z= 400............. (1)

Orchestra seats sell for $80, Main seats sell for $65 and bslcony seats sell for $40. The gross revenue if all the seats are sold = $23,700

80x + 65y + 40z = 23,700 ........(2)

If half of the orchestra seats are sold while all main and balcony seats are sold, we have

80(0.5x) + 65y+ 40z = 20,500

40x + 65y + 40z = 20,500 .....(3)

we have the simultaneous equations

x+y+z= 400............. (1)

80x + 65y + 40z = 23,700 ........(2)

40x + 65y + 40z = 20,500 .....(3)

Using elimination method to solve equation 2 and 3, we subtract equation 3 from 2

40x = 3200

x = 3200/40

x = 80 orchestra seats

Put x= 80 into equation 1 and 2

From equation 1,

x +y+z = 400

y + z = 400 - x

y+z = 400 -80

y+z = 320 .........(4)

From equation 2,

80x + 65y + 40z = 23,700

80(80) + 65y +40z = 23,700

6400 + 65y + 40z = 23,700

65y+40z = 23,700 - 6400

65y + 40z = 17,300 .........(5)

Multiply equation (4) by 40 and equation (5) by 1

So we have

40y + 40z = 12,800

65y + 40x = 17,300

subtract both equations from each other. we have

-25y = -4500

y = -4500/-25

y = 180 main seats

Put x = 80 and y= 180 into equation (1)

80+180+z = 400

260 + z = 400

z = 400-260

z = 140 balcony seats

6 0
3 years ago
........................
andreyandreev [35.5K]

First expression: (-7)/(-4)

Divide. Note that two negative numbers divided will result in a positive answer

(-7)/(-4) = 7/4 = 1.75

First expression: Greater than 1.

-----------------------------------------------------------------------------------------------------------------

Second expression: -(3/2)

Simplify: 3/2 = 1.5

-(1.5) = -1.5

Second expression: Less than -1

--------------------------------------------------------------------------------------------------------------

Third expression: (-8/5) x (-5/8)

Note that two negatives = one positive answer when multiplying

8/5 x 5/8 = 40/40 = 1

Third expression: Neither

----------------------------------------------------------------------------------------------------------------

Fourth Expression: (-5)/(-3)

Divide: (-5)/(-3) = 5/3 = ~1.67

Fourth Expression: Greater than 1

----------------------------------------------------------------------------------------------------------------

Fifth Expression: (-9)/6

Divide: (-9)/6 = -1.5

Fifth expression: Less than -1

----------------------------------------------------------------------------------------------------------------

hope this helps

5 0
3 years ago
A proportional equation does not have a what?
Jet001 [13]
A proportional equation does not have a Y-intercept greater than 0.
6 0
2 years ago
Anyone help???<br> Need it in 3 minnn thank you
olga55 [171]

Answer:

The lamp would cost $39.36

6 0
2 years ago
Read 2 more answers
Other questions:
  • What is the surface area of a cubic box that
    13·2 answers
  • A single die is rolled one time. Find the probability of rolling an oddodd number or a number less than 55
    7·1 answer
  • Can you help me with this, photo attached
    8·1 answer
  • What is 7, 14, 3, 14, 0, 1, 14, 5, 14, 16, 0 from least to greatest
    14·2 answers
  • Write an equation in standard form of The line that passss through (7,-3) and has a y intercept of 2
    13·1 answer
  • Please help me ?????
    7·1 answer
  • Solve the equation step by step. List each step, along with the property you used during that step -5x1x11x4
    14·1 answer
  • Solve for m .<br><br> -5 m = -35<br> m =
    7·2 answers
  • Actually answer plzzz
    14·2 answers
  • What is the slope of the line?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!