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mars1129 [50]
3 years ago
15

I need help you dont have to answer both.

Mathematics
2 answers:
aniked [119]3 years ago
5 0
1. Create a proportion:
12/17=18/x
12x=306
x= $25.50
2. Let Casey’s age be c and his sister’s be s
c=2s-3
c=s+5
2s-3=s+5
s=8
c=13
Casey is 13 years old!
Veseljchak [2.6K]3 years ago
4 0
1.
Weight of potatoes........Cost
12 lb ................................. $17
18 lb ................................. X
by cross multiplication we get
12 X = 17 × 18
12 X = 306
X = 306/12
X = $ 25.5
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A coin is tossed 3 times. Find the probability of getting at least one tail​
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Answer:

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Step-by-step explanation:

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3 years ago
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4 0
3 years ago
At a movie theater, tickets for children cost $8 each and adult tickets cost $8.75 each. Of ticket sales for a group of 35 peopl
alexandr402 [8]

Answer:

The results don't make sense

Step-by-step explanation:

We can solve by means of a 2x2 system of equations, we have to:

"x" is the number of children's tickets

"y" is the number of adult tickets

Thus:

8 * x + 8.75 * y = 259

 x + y = 35 => x = 35 - y

replacing we have:

 8 * (35 - y) + 8.75 * y = 259

280 - 8 * y + 8.75 * y = 259

 - 8 * y + 8.75 * y = 259 - 280

0.75 * y = -21

y = -21 / 0.75

y = -28

Thus:

x = 35 - (-28) = 63

With these results we notice that the problem has inconsistency, since the value of the tickets cannot be given a negative number, I recommend reviewing the problem, since the approach is correct.

3 0
3 years ago
Does anyone know how to do this?
BlackZzzverrR [31]

Answer:

the 8 means there will be 8 zeros after it so

62.00000000

yw

3 0
3 years ago
M5+m2+m3=180 whays the rwason
Marta_Voda [28]

Answer: 45

Step-by-step explanation: the fub

6 0
2 years ago
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