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murzikaleks [220]
3 years ago
12

As a member of a music club you can order CDs for $14.99 each the music club also charges $4.99 for each shipment the expression

14.99n+4.99 represents the cost of n CDs find the total cost for ordering 3 CDs
Mathematics
1 answer:
alex41 [277]3 years ago
4 0
It would cost 49.96 to order three Cd's. 
14.99*3=44.97
44.97+4.99=19.96. 

Hope this helps

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Burka [1]

answer. X=50

as..

draw a imaginary line between M

let it one side be y and z

y+z=120

now,

y=70(being alternate angle)

y+z =120

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z=120-70

z=50

as we know,

z is alternate to X

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7 0
2 years ago
In a competition between players X and Y, the first player to win three games in a row or a total of four games wins. How many w
OLEGan [10]

Answer:

The competition can be played in 7 different ways

Step-by-step explanation:

First game : X

Second game : Y

Third game : Y

After that either X or Y can win

<h3>¹Case - 1: Y wins the fourth game:</h3>

The competition ends with Y winning as he/she won 3 games in a row

<h3>Case - 2: X wins the fourth game:</h3>

more games are required to decide the winner

<h3>Sub-case - a: X wins the fifth game:</h3>

more games are required to decide the winner

<h3>²Sub-sub-case - i: X wins the sixth game:</h3>

The competition ends with X winning as he/she won 3 games in a row

<h3>³⁻⁴Sub-sub-case - ii: Y wins the sixth game:</h3>

The competition ends after the seventh game. Whoever wins seventh game wins the competition as he/she would've won 4 games in total by then.

<h3>Sub-case - b: Y wins the fifth game:</h3>

more games are required to decide the winner

<h3>⁵Sub-sub-case - i: Y wins the sixth game:</h3>

The competition ends with Y winning as he/she won 4 games in total

<h3>⁶⁻⁷Sub-sub-case - ii: X wins the sixth game:</h3>

The competition ends after the seventh game. Whoever wins seventh game wins the competition as he/she would've won 4 games in total by then.

∴<u>The competition can be played in 7 different ways</u>

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D.
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Answer:

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Step-by-step explanation:

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