datstepparoddoe27
16.10.2019 •
Mathematics
Earth has 24 time zones spread over its 360º circumference. each time zone is 15º wide. boston is close to longitude 71º w; honolulu is close to longitude 158º w.
how many time zones apart are boston and honolulu?
a. they are 6 time zones apart because 87/15 ≈ 6.
b. they are 5 time zones apart because 360/71 ≈ 5.
c. they are 4 time zones apart because 87/24 ≈ 4.
d. they are 2 time zones apart because 158/71 ≈ 2.
i think it's either b or d, but i'm not certain.
a grizzly bear’s top speed is about 36 mph. this speed makes the bear about 1 times as fast as an african elephant.
what is the top speed of an african elephant?
a. an african elephant can reach a top speed of about 48 mph because 36 divided by 2/3 = 48.
b. an african elephant can reach a top speed of about 39 mph because 36 divided by 3/2 = 39 .
c. an african elephant can reach a top speed of about 34 mph because 36 divided by 2/3 = 34 .
d. an african elephant can reach a top speed of about 24 mph because 36 divided by 3/2 =24 .
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Ответ:
A
We know that each time zone is 15 degrees. We know that Honolulu is close to 158 degrees and Boston is close to 71 degrees
If we subtract 158 - 71= 87 degrees
Since we know that time zones are 15 degrees wide we divide 87/15 = 5.8 or roughly 6 as the answer states
Question 2.
I am guessing the question is written incorrectly as 1 times as fast as the bear would be the same speed. However, by looking at the answers I am guessing it was supposed to be 1.5 times as fast and the answer is D
If we divide 36mph by 1.5 we get 24
Ответ: