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Alona [7]
3 years ago
9

Of the 50 states in the United States, 14 have an Atlantic Ocean coastline and 5 have a Pacific Ocean coastline. What fraction o

f U.S. states have neither an Atlantic Ocean nor Pacific Ocean coastline?
Mathematics
2 answers:
Valentin [98]3 years ago
7 0

Answer:

\frac{31}{50}

Step-by-step explanation:

First, find how many have an Atlantic or Pacific coastline:

14 + 5

= 19

Then, subtract this from 50:

50 - 19

= 31

This means 31 out of the 50 states have neither coastlines:

This is \frac{31}{50} as a fraction

MakcuM [25]3 years ago
4 0

Answer:

The answer is 31/50

Step-by-step explanation:

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Answer:

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5 0
3 years ago
The decay rate for a radioactive isotope is 9.29.2 percent per year. find the half-life of the isotope. round to the nearest ten
Oxana [17]
Exponential decay is given by the equation

F = P(1 - r)^t

0.5 = 1(1 - 0.092)^t

0.5 = (0.908)^t

log 0.5 = log (0.908)^t

log 0.5 = t * log 0.908

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Answer: 7.2 years
4 0
3 years ago
Ella collects 50 bottles to recycle.Of the bottle she collects 19 are plastic and the rest are glass.What percent of the bottles
gulaghasi [49]
Glass bottles =total number of bottles - numeber of bottle of plastic
gass bottles=50-19=31 bottles of glass.

percent of the bottles are glass=(number of bottles of glass*100%) / total number of bottles.

percent of the glass bottles=(31 bottles * 100%) / 50 bottles=62%

Answer: the percent of the bottles of glas is 62%

8 0
3 years ago
I need help please.
pishuonlain [190]

Step-by-step explanation:

2(x - 7) = 3(x + 9)

2x - 14 = 3x + 27

2x - 3x = 27 + 14

-x = 41

x = - 41

7 0
3 years ago
What are the factors of 42 that have a sum of -17
hram777 [196]

Answer:

4x−5x−1

cos(x1−sin2(x)

Step-by-step explanation:

4 0
2 years ago
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