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3 years ago

A marathon runner covers 42.0 km in 3h 45m. What was the runner's average speed

Mathematics

2 answers:

Roman55 [17]3 years ago

5 0

Answer:

I know you have to do s=d/t so 42/225=0.18

son4ous [18]3 years ago

3 0

Answer:

the average speed of the runner is 3.95 m/s

Step-by-step explanation:

if you take 3hr 45 min and turn it into minutes, which is 225. Then divide 225 by 42 and you should get your answer.

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IrinaK [193]

Answer:

380≠−17

Step-by-step explanation:

3(182+2)−172 ?= −17

380≠−17

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3 years ago

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Mashutka [201]

Answer:

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3 years ago

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The heights in inches, of some small trees for sale at a garden store are 62, 62, 59, 61, 59, 70, 59, and 62. What is the median

Nana76 [90]

Answer:

Step-by-step explanation:

the mean height, remember is the average

62+62+59+61+59+70+59+62=494/8=61.75

median is the middle value, so we will write the numbers in order

59,59,59,61,62,62,62,70

we have an even number so we add the middle numbers and divide by 2,

the median=61+62=123/2=61.50

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2 years ago

A n =−1+3(n−1) an=−1+3(n−1) what is the 55 term in the sequence

Sindrei [870]

ANSWER

$a_{55}=161$

EXPLANATION

The general term for the sequence is

$a_n=-1+3(n-1)$

To find the 55th term, we have to substitute
$n = 55$
in to the general term and simplify.

This implies that,

$a_{55}=-1+3(55-1)$

$a_{55}=-1+3(54)$

$a_{55}=-1+162$

$a_{55}=161$

Therefore the 55th term is 161.

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3 years ago

Express as a difference.

ElenaW [278]

10

b: 5+5
c: 5+5

thats thw andeer

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3 years ago