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lbvjy [14]
3 years ago
6

The scores for a basketball team are 72, 84, 102, 73, 90 and 83. the scores for the next two matches bring the average up to 90.

what was the total score of these two games?
I'm having trouble finding how to go about this.
Mathematics
2 answers:
aniked [119]3 years ago
6 0
72 + 84 + 102 + 73 + 90 + x
OVER
9
EQUALS 90
Marat540 [252]3 years ago
5 0
You just have to figure out what 90•8 is and subtract the sum of the numbers you were given because you will now have eight numbers instead of six and that is your total sum because whatever the sum is divided by the number of terms (8) has to equal 90
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I need help this math problem ​
Nastasia [14]

Answer:

x = 2

y = 5

1 = 80

2= 10

3 = 100

Step-by-step explanation:

Complementary angles add to 90.

So 5(x+14) + 2(10-y) = 90. Solve for x.

5x + 70 + 20 -2y = 90

5x - 2y = 0

Supplementary angles add to 180.

So 5(x+14) + 121-3x-3y = 180. Solve for x.

5x + 70 + 121 -3x -3y = 180

2x - 3y = -11

This creates a system of equations. Solve using elimination.

5x - 2y = 0  ------>  10x - 4y =0

2x - 3y = -11 ------> 10x -15y = -55

                           _____________

                                      11y = 55

                                         y = 5

Substitute y=5 into the equation to find x.

2x - 3(5) = -11

2x - 15 = -11

2x = 4

x=2

Find the measure of each angle by substituting x = 2 and y =5 into each angle.

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Answer:

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Step-by-step explanation:

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Answer:

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