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Helga [31]
2 years ago
12

Can you guys help? Hopefully the last question of the day/night!

Mathematics
2 answers:
Anettt [7]2 years ago
5 0

Answer and explain:

1st person: 70 % throws

70/100x80 = 56 out of 80 throws

2nd person: 60% throws

60/100x80 = 48 out of 80 throws

3rd person 50% throws

50/100x80 = 40 out of 80 throws

56+48+40/80x3 = 77/120​

One equation that gives the estimated number of free throws (all the 3 people) is 77 out of 120. The best player will make about 56 out of 80 free throws.

igomit [66]2 years ago
5 0
Answer and explain: 1st person: 70% throws 70/100x80 = 56 out of 80 throws 2nd person: 60% throws 60/100x80 = 48 out of 80 throws 3rd person 50% throws 50/100x80 = 40 out of 80 throws 56+ 48+40/80x3 = 77/120 One equation that gives the estimated number of free throws (all the 3 people) is 77 out of 120. The best player will make about 56 out of 80 free throws.
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Answer:

24

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]. six pears and three apples cost $3.90. two pears and five apples cost $3.30. how much does one pear cost
Ilya [14]
Write the equation of the cost
p stands for the cost per pear, a stands for the cost per apple
6p + 3a = 3.9
2p + 5a = 3.3

Solve the equation system
To solve the equation system, we work on eliminating variable p so we will find the number of a. To eliminate, we have to change the coefficient of p to the same number (i will change it to coefficient 6)
6p + 3a = 3.9 (multiply 1)
2p + 5a = 3.3 (multiply 3)
---------------------------------
6p + 3a = 3.9
6p + 15a = 9.9
-------------------- - (substract)
      -12a = -6
           a = -6/-12
           a = 0.5

To find the cost per pear, subtitute the number of a to one of the equation
2p + 5a = 3.3
2p + 5(0.5) = 3.3
2p + 2.5 = 3.3
2p = 3.3 - 2.5
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The cost of one pear is $0.4
6 0
3 years ago
Consider the quadratic equation below. Determine the correct set-up for solving the equation using the quadratic formula.
Studentka2010 [4]

Answer:

--3 ±sqrt((-3)^2 -4(4)(-9))

-------------------------------

2(4)

Step-by-step explanation:

4x^2-5=3x+4

We need to get this in standard form to answer the question

Subtract 3x from each side

4x^2-3x-5=3x-3x+4

4x^2-3x-5=+4

Subtract 4 from each side

4x^2-3x-9 =0

a = 4

b = -3

c = -9

-b ±sqrt(b^2 -4ac)

---------------------------

2a

--3 ±sqrt((-3)^2 -4(4)(-9))

-------------------------------

2(4)

5 0
3 years ago
20 POINTS
NemiM [27]

Answer:

zero

Step-by-step explanation:

y value will be zero when we are looking for an x-intercept

6 0
3 years ago
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