Equals meter minute 20 cm/s
Number of returns = 47
Number of returns that contain errors = 5
Number of returns that does not contain error = 47 - 5 = 42
P(selecting none that contains error in the unreplaced selection) = 42/47 x 41/46 x 40/45 = 68880 / 97290 = 0.708
option C is the correct answer.
<u>5 hours</u><u> long would it take the </u><u>faster </u><u>maid cleaning alone.</u>
What is a linear equation in math?
- A linear equation only has one or two variables.
- No variable in a linear equation is raised to a power greater than 1 or used as the denominator of a fraction.
- When you find pairs of values that make a linear equation true and plot those pairs on a coordinate grid, all of the points lie on the same line.
Suppose, time taken by faster maid be x , hours.
So, time taken by slower maid ,
( 4 time faster maid )
Now, time taken by both of the made together is given by ,



which is the time required by faster maid.
Learn more about linear equation
brainly.com/question/12974594
#SPJ4
Answer:
Speed of vehicle = 500 km/hour
Step-by-step explanation:
Given that:
Distance travel by vehicle = 6,500 km
Time taken by vehicle = 13 hour
Find:
Speed of vehicle in kilometer per hour
Computation:
Speed = Distance / Time
Speed of vehicle = Distance travel by vehicle / Time taken by vehicle
Speed of vehicle = 6,500 / 13
Speed of vehicle = 500 kilometer per hour