You will achieve this in 15 days. Both 5 and 3 have a least common multiple of 15.
Answer:
Step-by-step explanation:
Given
Required
Calculate the hourly rate
First, we will determine the amount of ice cream that was sold
Next, calculate the average hourly rate:
-- Approximated
Consequently, the equation determining the remaining number of rooms Martin has to clean after
hours can be represented as: 
, in which 
indicates the overall number of rooms. Step-by-step explanation: It is given that Martin has 4 rooms left to clean and takes 7 hours for the task. The equation in standard form for the number of rooms remaining after x hours, y, is set up as follows: The remaining rooms 
, indicates the quantity after 
hours. The cleaning rate is established as follows: Considering Martin cleans 4 rooms in 7 hours, the rate at which he cleans is given by: Hence, the equation can be expressed as
(Answer)
.
Given that we have all three sides of the triangle, we can classify this as a Side-Side-Side (SSS) triangle. To find the angle, we start by applying the Law of Cosines specifically to the side opposite the angle of interest, which is angle W, opposite side XV:
XV² = XW² + WV² - 2(XW)(WV)cos W
Plugging in the known values:
116² = 96² + 89² - 2(96)(89)cos W
Calculating W
13,456 = 9,216 + 7,921 - 17,088 cos W
13,456 = 17,137 - 17,088 cos W
13,456 - 17,137 = 17,137 - 17,088 cos W - 17,137
-3,681 = -17,088 cos W
(-3,681)/(-17,088) = (-17,088 cos W)/(-17,088)
0.215414326 = cos W
cos W = 0.215414326
To find W:
W = cos^(-1)(0.215414326)
Calculating with a calculator:
W ≈ 77.56016397°
Rounded to one decimal place:
W ≈ 77.6°
Answer: The third option, 77.6°
