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Rama09 [41]
3 years ago
10

Please help me find the answer(LOOK at picture)

Mathematics
1 answer:
tia_tia [17]3 years ago
8 0

Answer:

15%

Step-by-step explanation:

Total families:

45 + 38 + 27 + 10 = 120

Difference between the families:

45 - 27 = 18

Percentage calculation:

\% =  \frac{18 \times 100}{120}  = 15\%

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When Katy planted a large bush in her garden, it was 4 feet tall. Now it is 75% taller. How tall is the bush now?
ddd [48]

Answer:

3

Step-by-step explanation:

So to answer this question we need to see what it is actually telling us and not telling us.

*4 feet tall

*75 percent taller

They aren't telling us how tall it is now.

To solve this problem, multiply 4x75%

That will give you 3.

The bush is 3 feet tall now.

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Solve for x and y (use elimination or substitution). Show work.
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Write the explicit formula
mixas84 [53]

Answer:

The required explicit formula is A(n)= 4-4n

10th term of arithmetic sequence is (-36)

Step-by-step explanation:

Given arithmetic sequence is 8,4,0,-4,-8......

The arithmetic sequence is given by a,a+d,a+2d.......a+(n-1)d

Comparing both the sequence we get,

a=8 and a+d=4

For value of d:

d+a=4

d=4-8=(-4)

The explicit formula is given by : A(n)= a+(n-1)d

A(n)= a+(n-1)d

A(n)= 8+(n-1)(-4)

A(n)= 8-4n+4

A(n)= 4-4n

Therefore, The required explicit formula is A(n)= 4-4n

To find value of 10 th term:

Take n=10 in explicit formula

A(10)= 4-4(10)

A(10)= -36

Therefore, 10th term is (-36)

8 0
3 years ago
The time to fly between New York City and Chicago is uniformly distributed with a minimum of 120 minutes and a maximum of 150 mi
antoniya [11.8K]

Answer:

a) 135 minutes

b) 15

c) 0.5

d) 0.3707

Step-by-step explanation:

A) What is the distribution's mean

mean(m) = (120 + 150)/2 = 270/2 = 135 minutes

B) What is the distribution's standard deviation

standard deviation(s) = \sqrt{\frac{(120-135)^{2}+(150-135)^{2}  }{2} }

s = 15

C) What is the probability that a flight is less than 135 minutes

firstly calculate z score

z score = (x - m)/s = (135 - 135)/15 = 0

P(x<135) = z(0) = 0.5

D) What is the probability that a flight is more than 140 minutes?

z score = (x - m)/s = (140 - 135)/15 = 0.33

P(x>140) = 1 - P(x<140) = 1 - 0.6293 = 0.3707

8 0
3 years ago
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