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Ne4ueva [31]
3 years ago
5

The diameter of a circle is 14 miles. What is the circle's area? Use 3.14 for ​.

Mathematics
1 answer:
aksik [14]3 years ago
7 0

Answer:

153.86cm^2

Step-by-step explanation:

area of a circle= πr^2

where r = radius= 14/2= 7miles

area= 3.14×(7×7)

area= 3.14×49= 153.86cm^2

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a display at an aquarium has sea stars to wolf eels in a ratio 4 : 5. It also has 5/8 as many rockfish as sea stars. there are 4
r-ruslan [8.4K]

The number of sea stars is 64.

What is a ratio?

Comparing two amounts of the same units and determining the ratio tells us how much of one quantity is in the other.

In general, a: b, which can be interpreted as "a is to b," is used to denote a ratio between two quantities, let's say "a" and "b."

This ratio is expressed in fraction form as a/b. We utilize the same method for further simplifying a ratio as we use for further simplifying a fraction.

According to the question,

Ratio of sea stars to wolf eels = 4:5

Number of rock fish= 5/8 (Number of sea stars)

Number of wolf eels - Number of rock fish = 40

Using the given information, we get,

Number of sea stars = 8/5 (Number of rock fish)

On simplification,

Number of wolf eels = 80

So, number of sea stars = (4/5)*80

                                          = 64

Learn more about ratios here:

brainly.com/question/2328454

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7 0
2 years ago
Which phrase describes an unknown or changeable quantity?
Artist 52 [7]
B i think that because there’s no quantity
7 0
3 years ago
!!Please help!! Its due tmr please thanks !!
bezimeni [28]

Answer:

What do you need help with?

5 0
3 years ago
The amounts of e-waste generated in a region during two years were 14,200,000 tons and 10,700,000 tons. What was the total e-was
MArishka [77]

Answer:

C

Step-by-step explanation:

c because if 10,700,000 divided by 100000 its a but add that 5 times and its 1014.

6 0
3 years ago
Read 2 more answers
PLZZ HELPPP!!!!!!!!!!
zheka24 [161]

Answer:

$375.32

Step-by-step explanation:

100% - 40% = 80%

80/100 = 0.8 (multiplier)

521.28 x 0.8 = 417.024

417.024 to 417.02 (2 d.p.)

100 - 10 = (ans)/100 = 0.9

417.02 x 0.9 = 375.318

$375.32

4 0
3 years ago
Read 2 more answers
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