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mars1129 [50]
3 years ago
8

A circular jogging track forms the edge of a circular lake that has a diameter of 2 miles. Johanna walked once around the track

at the average speed of 3 miles per hour. If t represents the number of hours it took Johanna to walk completely around the lake, which of the following is a correct statement?
A. 0.5< t < 0.75
B. 1.75< t < 2.0
C. 2.0 < t < 2.5
D. 2.5 < t < 3.0
E. 3 < t < 3.5
Mathematics
1 answer:
Vadim26 [7]3 years ago
5 0

Answer:

  A.  0.5< t < 0.75

Step-by-step explanation:

We can use the relation ...

  time = distance / speed

to find the number of hours it took Johanna to walk around the lake.

  time = (2 mi)/(3 mi/h) = 2/3 h

2/3 is between 1/2 and 3/4, so the first answer choice describes the interval containing Johanna's time:

  0.5 < t < 0.75

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Step-by-step explanation:

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Mrs. Lane took a survey of the types of pants her students were wearing. She collected the data at the right. What percent of he
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Answer:

It is always important to go through the given problem first to get a concept of the requiremement. Then all the information's available from the question has to be noted down in such a manner that there would be no need to look at the question while solving.

Total number of students wearing jeans = 10

Total number of students wearing shorts = 9

Total number of students wearing capris = 2

Then the total number of students surveyed by Mrs Lane = (10 + 9 + 2)

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Now percentage of students wearing shorts = (9/21) * 100

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Step-by-step explanation:

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by solving the first equation you'll get x= -24/13

if you solve the second option (B) then you'll the same result i.e x=-24/13

so option C is correct

7 0
2 years ago
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