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Rashid [163]
2 years ago
8

I need a Tutor and Help with this question

Mathematics
2 answers:
valkas [14]2 years ago
4 0

Answer:

x=31

y=6

Step-by-step explanation:

2x+3y=80

x+y=37

solve by elimination:( multiply second equation by 2) to eliminate x

2x+3y=80

2x+2y=74

subtract the two equations:

2x+3y-(3x+2y)=80-74

2x+3y-3x-2y=6

y=6 (3 point basket)

substitute: x+y=37, x=37-6=31

x=31 (2 point shot)

Elina [12.6K]2 years ago
3 0

Answer:

2 point shots: 31

3 point shots: 6

Step-by-step explanation:

to get the 3 point shots:

2x+3(37-x)=80

2x+111-3x=80

x=31

31+y=37

y=6 --> 3 point shot

to get the 2 point shots:

2(37-y)+3y=80

74-2y+3y=80

y=6

x+6=37

x=31 --> 2 point shot

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Answer:

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Assuming there is a punitive removal of one point for an incorrect response.

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Four undiscernable choices: 25% chance of guessing correctly -- Expectation: 0.25*(1) + 0.75*(-1) = -0.50

I'll use 0.33 as an approzimation for 1/3

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Two undiscernable choices: 50% chance of guessing correctly -- Expectation: 0.50*(1) + 0.50*(-1) = 0.00

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2 years ago
What is (3x+8) + (6x+2) in simplest form
barxatty [35]
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2 years ago
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irina [24]

Answer:

351.68 cm^2

Step-by-step explanation:

We need to find the area of the frame itself. the radius of the inner circle is 12, but the frame has a radius of 4. You add 12 and 4 and you get 16. The formula for area of a circle is A=πr^2. So A= 3.14 x16^2. Then you have A= 3.14x 256 and you get 803.84. But we only want the area of the frame, so you have to get the area of the inner circle and subtract. You get A= 3.14 x 12^2. 3.14x144 is 452.16. 803.84-452.16 is 351.68. Hope this helped. :)

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jeyben [28]

Answer:

7.

Solution given;

male=15

female=27

1st term=5*3

2nd term=3*3*3

now

Highest common factor=3

So

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<u>and</u><u> </u><u>each</u><u> </u><u>team</u><u> </u><u>contains</u><u> </u><u>5</u><u> </u><u>male and</u><u> </u><u>9</u><u> </u><u>female</u><u>.</u>

7 0
3 years ago
When solving this equation: -16 + x = -15 we start with adding 16 to both sides. Why do we use addition?​
Ierofanga [76]

Answer:

So you can cancel out the 16. See, the -16 is negative, and if we add +16 to it, then it cancels out and is 0. That way, you have x=1.

Step-by-step explanation:

-16x+x=-15

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   0+x=1

       x=1

6 0
2 years ago
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