Answer: The number of revolutions required to level the park is 100.
Step-by-step explanation:
Given : Diameter of roller = 77 cm
Then radius of roller : r = 
Height = 1 m = 100 cm
Curved surface area of roller = 
Dimensions of park = 22 × 11 m
Then Area of park = 

Now , the number of revolutions required to level the park = (Area of park) ÷ (Curved surface area of roller )

Hence, the number of revolutions required to level the park is 100.
Answer:
C. 62
Step-by-step explanation:
because all of the angles must = to 180 degrees and the 2 bottom must be equivalent so 62+62+56=180
Answer:
4/3
Step-by-step explanation:
Slope is rise over run. So how far do you rise to get up to 3 from -1. Put that over the run, (once you go up that many how far do you run?) Put that as a fraction and simplify if needed.
If you are looking for the fraction of total income spent, the answer would be 7/8.
3/8, 2/5, 1/10
Make them similar fractions, use LCD (in this case, 40)
They become
15/40, 16/40, 4/40
Add
15/40 + 16/40 + 4/40
= 35/40, or, simplified, 7/8
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7x-3y=15 is the equation in standard form.