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Mathematics

1 answer:

lisabon 2012 [21]2 years ago

8 0

It’s 30-60-90 Triangle

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Johny has 64 marbles mark has m marbles johny has 16 times as many marbles as mark how many marbles does mark have create a mult

nika2105 [10]

Answer:

16m=64

16 x m = 64

4 marbles

Step-by-step explanation:

6 0

2 years ago

in a round robin tennis tournament involving 7 players, each player will play every other player twice. How many total matches w

baherus [9]

Total number of ways to make a pair:

The first player can be any one of 7 . For each of those . . .
The opponent can be any one of the remaining 6 .

Total ways to make a pair = 7 x 6 = 42 ways .

BUT ... every pair can be made in two ways ... A vs B or B vs A .
So 42 'ways' make only (42/2) = 21 different pairs.

If every pair plays 2 matches, then (21 x 2) = 42 total matches will be played.

Now, is that an elegant solution or what !

8 0

3 years ago

Which ordered pair (a, b) is a solution to the given system of linear equations? -2a+3b=14

Stels [109]

Answer:

The solution of the system is the ordered pair (-13,-4)

Step-by-step explanation:

we have

$-2a+3b=14$ -----> equation A