Savannah was paid $87 for 12 hours of babysitting and $65.25 for 9 hours. What is the constant of proportionality that describes this relationship? A) 0.14 Eliminate B) 7.25 C) 12.5 D) 65

Answers

Answer 1

Answer: answer is B) 7.25

$87 / 12 = $7.25 per hour

$65.25 / 9 = $ 7.25 per hour

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Charles Lindbergh made a first solo airplane flight from New York to Paris. His flight covered about 3610 miles in 33.5 hours.a.) find the unit rate in miles per hour
b.) find the unit rate in hours per mile
c.) which is a better description of Lindbergh's rate about 2 miles per minute or about 2 mph? Explain your reasoning.

Answers

The unit rate is 107.76 miles per hour.

The unit rate is 0.009 hours per mile.

A better description of Lindbergh's rate is about 2 miles per minute is 67 miles.

Given that

Charles Lindbergh made their first solo airplane flight from New York to Paris.

The flight covered about 3610 miles in 33.5 hours.

According to the question

1. The unit rate in miles per hour is,

$\rm Unit \ Rate = (Distance)/(Time)\n\nUnit \ rate = (3610)/(33.5)\n\nUnit \ rate = 107.76 \ miles \ per \ hour$

The unit rate is 107.76 miles per hour.

2. The unit rate in hours per mile is,

$\rm Unit \ Rate = (Time)/(Distance)\n\nUnit \ rate = (33.5)/(3610)\n\nUnit \ rate = 0.009 \ hour \ per \ miles$

The unit rate is 0.009 hours per mile.

3. The better description of Lindbergh's rate about 2 miles per minute or about 2 mph is,

$\rm = 33.5 * 2\n\n= 67 \ miles$

A better description of Lindbergh's rate is about 2 miles per minute is 67 miles.

To know more about Equation click the link given below.

brainly.com/question/11497825

a) 107.7mph This is solved by dividing the distance by the time to see how many miles are covered over that time. 3610 divided by 33.5 = 107.7 (1st decimal place)
b)0.009 This is done by doing the opposite. 33.6 divided by 3610
c)2mpm because 2mph would mean he only covered 67 miles.

Please helppppppppppppppppp ;-;