At a pet store, Davina counted 12 parrots out of 20 birds. Which is an equivalent ratio of parrots to birds at the pet store?
2 answers:
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Answer:
Area swept by the blade = 448
Step-by-step explanation:
The arc the wiper wipes is for 135 degrees angle.
So, find area of sector with radius 24 inches. And the find area of arc with r=14 inches.
Then subtract the area of sector with 14 inches from area of sector with radius as 24 inches.
So, area of sector with r=24 in =
Simplify it,
=216
Now, let's find area of sector with radius 14 inches
Area of sector with r=14 in =
Simplify it
=73.5
So, area swept by the blade = 216 -73.5
Simplify it and use pi as 3.14.....
Area of swept =678.584 - 230.907
=447.6769
Round to nearest whole number
So, area swept by the blade = 448
Answer:
The answer is 60.
Step-by-step explanation:
÷
Now, apply the fraction rule(\frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\times \frac{d}{c}):
×
Cross-cancel(common factor of 4):
×
Multiply:
Simplify:
12 x 5=60
The answer is 60
hope this helps :)