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bogdanovich [222]
3 years ago
9

15 POINTS AND BRAINLY FOR CORRECT ANSWER

Mathematics
1 answer:
hammer [34]3 years ago
4 0

Answer:

The answer is 10.

Step-by-step explanation:

There would be 10 players, 2 for each group, and if each player played every other player twice, then that would mean that 20 matches of chess were played.

Hope this helped!! (:

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How to put a fraction into a ti 84 plus graphing calculator?
stiks02 [169]
To insert fraction values; 

1) Click on "math" found under the alpha option 
2) Use right arrow key to move to the tab "FRAC" 
3) Select 1st option for fraction 
4) Write out Fraction 

Hope I helped :)
4 0
3 years ago
A jet ski costs $925 and depreciates by 15% each year. How much will
ivann1987 [24]
Initial cost of the jet ski = $925
Percentage of depreciation per year = 15%
Number of years after which the cost of the jetski has to be determined = 7
Then
Depreciated Value = Initial cost( 1 - percentage of depreciation) ^number of years
                              = 925( 1 - 15%)^7
                              = 925( 1 - 15/100)^7
                              = 925(1 - 0.15)^7
                              = 925(0.85)^7
                              = 925 *(0.85)^7
                              = 925 * 0.3206
                              = 296.53 dollars
So the depreciated cost of the jet ski after 7 years will be $296.53
6 0
3 years ago
1. Find the slope of the line.<br><br> 2. Find the rate of change.
d1i1m1o1n [39]

Answer:

the slope of the line is 2 over 1 which means the answer is 2

the rate of change is c

To find the slope of the line you have to go rise over run.

to find the rate of change you have to see how much does the numbers in y go by.

8 0
3 years ago
suppose A and B are complementary angles, m a =(3x+5) and m b= (2x-15). Solve for x and then find m a and m b
vlada-n [284]
2 angles are complementary if the sum of their measures is 90°.

For example  if m(P) = 41°  and m(Q)=49°, then P and Q are complementary.


Thus A and B are complementary means that m(A)=m(B)=90°:

(3x+5°) + (2x-15°) =90°

5x-10°=90°

5x=100°

x=20°



Thus 

m(A)=3x+5°=3* 20°+5°=60°+5°=65°

m(B)=2x-15°=2*20°-15°=40°-15°=25°
8 0
3 years ago
On a bird-watching trip, Mei and Jackie counted 68 birds.
defon

Answer:

The answer is 70% if you round it.

Step-by-step explanation:

45 out of 68 is 66 but if you're rounding it the answer is 70%.

5 0
3 years ago
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