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Answer:
Ephraim paid a 22.3% tip, what was his bill before adding the tip?
23.54
Step-by-step explanation:
For this case we assume the following notation:
represent the total paid for the dinner
x represent the amount before adding the tip
f =0.223 represent the fraction of the total amount destined to the tip
Based on this we can create the following relationship between T and x:
And we can solve for x from the previous equation like this:
Taking T common factor we got:
And if we replace we got:
And the amount destined to the tip would be
And if we add the two values we see that:
23.54+6.75 = 30.29 representing the total cost.
So then the correct answer for the question:
Ephraim paid a 22.3% tip, what was his bill before adding the tip?
23.54
Answer:
The volunteers donated millimeters of blood.
Step-by-step explanation:
Given:
Total Number of Volunteers = 32
number of Volunteers failed to donate = n
Amount of blood donated by each volunteer = 470 mm
We need to find the Total amount of blood donated by the Volunteers.
Solution:
First we will find the number of volunteers donated blood.
the number of volunteers donated blood is equal to Total Number of Volunteers minus number of Volunteers failed to donate.
framing in equation form we get;
the number of volunteers donated blood =
Now we will find Total amount of blood donated by the Volunteers.
Total amount of blood donated by the Volunteers is equal to Amount of blood donated by each volunteer multiplied by the number of volunteers donated blood.
framing in equation form we get;
Total amount of blood donated by the Volunteers =
Hence The volunteers donated millimeters of blood.
Original length of the rope = 4m
Size of each piece = 3/5 m.
No of cords of same size formed will be
Size of each piece = 3/5 m.
No of cords of same size formed will be