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Sunny_sXe [5.5K]
3 years ago
5

Số táo của An, Bình, Chi là như nhau. An cho đi 17 quả , Chi cho đi 19 quả thì lúc này số táo của Chi gấp 5 lần tổng số táo còn

lại của An và Bình. Hỏi lúc đầu mỗi bạn có bao nhiêu quả táo? ( Giải bài toán trên bằng phương trình hoặc hệ phương trình )
Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
6 0

Answer:

So, the initial number of apples is 7.

Step-by-step explanation:

The number of apples of An, Binh, and Chi are the same. An gave away 17 apples, Chi gave away 19 apples, so now Chi's apples are 5 times higher than the total remaining apples of An and Binh. How many apples did each of you have at first? (Solve the above problem by equation or system of equations)

Let the initial numbers of apples is a.

An gave 17 apples

Chi gave 19 apples

So,

x - 19 = 5 (x - 17 + x)

x - 19 = 5 (2x - 17)

x - 19 = 10 x - 85

9 x = 66

x = 7

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NNADVOKAT [17]

C) 18 is your answer

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7 0
3 years ago
Help answer the question please.
Reptile [31]

Answer:

49

Step-by-step explanation:

He recieved 8 ticket (even number) per day for 7 days. 8×7=56

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7 0
3 years ago
Suppose a basketball player has made 233 out of 402 free throws. if the player makes the next 3 free throws, i will pay you $166
Debora [2.8K]
The expected value is $0.11.

The probability that the player will make the next free throw is 233/402.  The probability that the next 3 are made will be (233/402)^3.  To find the expected value of this, we multiply by the winnings we would have in this case, 166.  So far we have:

((233/402)^3)(166)

The probability that the next 3 are not made is 1-((233/402)^3).  Multiply this by the loss, -40, to get its expected value.  This gets us to:

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This comes out to $0.11.
4 0
4 years ago
Read 2 more answers
SIMPLIFY USING THE DISTRIBUTIVE PROPERTY OF RATIONAL NUMBERS<br> 1/5+ (2/5+3/5)
Lemur [1.5K]

Answer:

6/5

Step-by-step explanation:

1/5 + (2/5 + 3/5)

solve for the bracket first

1/5 +(2+3/5)

1/5 + (5/5)

1/5 + 1

1+1*5/5

6/5

another method

1/5 + (2/5 +3/5)

open brackets)

1/5 + 2/5 + 3/5

since their denominator are same u can add their numerator

1+2+3/5

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4 0
3 years ago
Select the correct answer.
liq [111]
I’m assuming the second set of points is (5,5)
y=3/5x + 2
5 0
3 years ago
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