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FromTheMoon [43]
3 years ago
5

Please answer this below Question # 15

Mathematics
1 answer:
LiRa [457]3 years ago
7 0

Answer:

c. \: 5x - 2y = 10 \\ \:  \:  \:  \:  \:  10x - 4y = 20 \\

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Dan has five times as many $1 bills as $5 bills. he has a total of 48 bills. how many of each does he have?
Sholpan [36]
Let the number of $1 bill be x and $5 bill be y
x=5y
5y+y=48
6y=48
x=40
y=8

number of $1 bill= 40
number of $5 bill = 8
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3 years ago
If you roll a 6-sided die what is the probability of rolling a one?
Ainat [17]

Answer:

the probablity of rolling a one is 1/6

Step-by-step explanation:

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Explain your answer please.
andriy [413]
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7 0
3 years ago
On a coordinate plane, 2 lines are shown. Line P Q has points (negative 5, 3) and (5, 1). Line R S has points (negative 4, negat
kati45 [8]

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Step-by-step explanation:

3 0
2 years ago
Write a quadratic equation in standard form with the given roots
stich3 [128]

{x}^{2}  -  \frac{15x}{2}   +  \frac{7}{2}

Step-by-step explanation:

So we go backwards, since we have x= 1/2 , 7

(x -  \frac{1}{2} )(x - 7)

Now we have to foil to get the quadratic

{x}^{2}  - 7x -  \frac{1}{2} x +  \frac{7}{2}

We must simplify the terms

{x}^{2}  -  \frac{14x}{2}  -  \frac{x}{2}  +  \frac{7}{2}

Our final result comes out to be

{x}^{2}  -  \frac{15x}{2}   +  \frac{7}{2}

5 0
2 years ago
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