Answer:
66 sunny days before birthday
Step-by-step explanation:
Total sunny days after birthday = 17
Total sunny days in year = 83
Birthday was not sunny
Total sunny days before birthday = 83 -17
= 66 sunny days
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Data:
v (volume) = ?
h (height) = 10 m
r (radius) = 5 m
Adopting:
Formula:
Solving:
If:
785 m³ → 100%
y m³ → 75%
Solving: <span>Rule of three (directly proportional)
</span>
multiply cross
Answer:
<span>
The volume of water that the tank contains when it is 75% full is 588.75 m³</span>
Answer:
The new area will be 1/4 of the old area.
Step-by-step explanation:
If you don't know the answer already from (1/2)^2 = 1/4, you can figure it out.
new area = (1/2·5 mm)·(1/2·5 mm) = (1/2)^2·(5 mm)^2
old area = (5 mm)·(5 mm) = (5 mm)^2
Then the ratio of new area to old area is ...
((1/2)^2·(5 mm)^2)/(5 mm)^2 = (1/2)^2 = 1/4
___
When any plane figure has its linear dimensions scaled by a factor of "s", its area will be scaled by a factor of s^2.
Here, s=1/2, and s^2 = 1/4, the ratio of new area to old.
27,36,45 are bigger than 20