Shelley cleans out houses. She worked 18 hours cleaning 5 different houses. She worked an equal number of hours at each house. H
1 answer:
Answer:
The amount of time it takes Shelly to clean each house is 3.6 hours or 2 hours 36 minutes.
Step-by-step explanation:
Shelly cleans 5 different houses in 18 hours.
To compute the amount of times Shelly spends cleaning one house divide the total hours spend by the number of houses cleaned.
The number of hours it takes Shelly to clean a single house is:
Number of hours spent cleaning 1 house = hours.
Thus, the amount of time it takes Shelly to clean each house is 3.6 hours or 2 hours 36 minutes.
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Answer:
the largest angle of the field is 149⁰
Step-by-step explanation:
Given;
perimeter of the triangular filed, P = 120 m
length of two known sides, a and b = 21 m and 40 m respectively
The length of the third side is calculated as follows;
a + b + c = P
21 m + 40 m + c = 120 m
61 m + c = 120 m
c = 120 m - 61 m
c = 59 m
B
↓ ↓
↓ ↓
↓ ↓
A → → → → → → → → → → → C
Consider ABC as the triangular field;
Angle A is calculated by applying cosine rule;
Angle B is calculated as follows;
Angle C is calculated as follows;
Therefore, the largest angle of the field is 149⁰.