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Vlada [557]
2 years ago
8

If you don’t know then don’t answer

Mathematics
2 answers:
Tom [10]2 years ago
5 0

Answer:

50%

Step-by-step explanation:

x%28miles = 14

x/100 × 28miles = 14

x = 1/2 × 100

=50%

Anna71 [15]2 years ago
5 0
Answer: 50%

The total is 28 miles and on the first day he traveled 14 miles which is half (50%) of the total distance. So, Terry hiked 50% of the total distance on the first day.
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A study of consumer smoking habits includes A people in the 18-22 age bracket (B of whom smoke), C people in the 23-30 age brack
madreJ [45]

The correct question is:

A study of consumer smoking habits includes 167 people in the 18-22 age bracket (59 of whom smoke), 148 people in the 23-30 age bracket (31 of whom smoke), and 85 people in the 31-40 age bracket (23 of whom smoke). If one person is randomly selected from this sample, find the probability of getting someone who is age 23-30 or smokes

Answer:

The probability of getting someone who is age 23-30 or smokes = 0.575

Step-by-step explanation:

We are given;

Number consumers of age 18 - 22 = 167

Number of consumers of ages 22 - 30 = 148

Number of consumers of ages 31 - 40 = 85

Thus,total number of consumers in the survey = 167 + 148 + 85 = 400

We are also given;

Number consumers of age 18 - 22 who smoke = 59

Number of consumers of ages 22 - 30 who smoke = 31

Number of consumers of ages 31 - 40 who smoke = 23

Total number of people who smoke = 59 + 31 + 23 = 113

Let event A = someone of age 23-30 and event B = someone who smokes. Thus;

P(A) = 148/400

P(B) = 113/400

P(A & B) = 31/400

Now, from addition rule in sets which is given by;

P(A or B) = P (A) + P (B) – P (A and B)

We can now solve the question.

Thus;

P(A or B) = (148/400) + (113/400) - (31/400)

P(A or B) = 230/400 = 0.575

4 0
3 years ago
Evaluate 5+x-5*8 for x = 7
Sladkaya [172]

Answer:

- 28

Step-by-step explanation:

Plug in 7 for x

5 + 7 - 5 x 8

5 + 7 - 40

12 - 40

-28

8 0
3 years ago
What decimal is smaller .52 or .25
Liono4ka [1.6K]

Answer:

0.25

Step-by-step explanation:

0.52 is like 2 quarters

0.25 is 1 quarter

So, 1 < 2

Have a nice day! :)

3 0
3 years ago
4 consecutive integer that add up to 30
lapo4ka [179]

7 + 7 + 7 + 7 = 30

7 repeats itself 4 times to equal 30

3 0
3 years ago
Read 2 more answers
Please help me I would really appreciate it.
Karo-lina-s [1.5K]

Given:

\overline{AB}\cong \overline {CD},\overline{BC}\cong \overline {DA}

To prove:

\Delta CDA\cong \Delta ABC

Proof:

In \Delta CDA\text{ and } \Delta ABC,

\overline{AB}\cong \overline {CD} because Given

\overline{BC}\cong \overline {DA} because Given

\overline{AC}\cong \overline {AC} because Reflexive property.

Corresponding sides of both triangles are congruent. So,

\Delta CDA\cong \Delta ABC because SSS

Therefore, the required missing values are: Given, \overline{BC}\cong \overline {DA}, Reflexive property ,\Delta CDA\cong \Delta ABC, SSS respectively.

5 0
3 years ago
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