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Ratling [72]
3 years ago
11

An environmentalist wants to find out the fraction of oil tankers that have spills each month.

Mathematics
1 answer:
Anastasy [175]3 years ago
3 0

Answer:

The estimate of the proportion of oil tankers that had spills is 0.25.

Step-by-step explanation:

Proportion of oil tankers that had spills:

1036 tankers.

777 did not have spills.

So 1036 - 777 = 259 had spills.

The proportion is:

p = \frac{259}{1036} = 0.25

The estimate of the proportion of oil tankers that had spills is 0.25.

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The Marine Discovery Aquarium sells ocean-themed cookies in their gift shop. Last month, they sold 65 shark cookies and 85 clown
Juliette [100K]

Answer:

130 shark cookies

Step-by-step explanation:

Number of shark cookies sold last month = 65

Number of clown fish cookies sold last month = 85

Ratio = 65:85=13:17

Now, the Marine Discovery Aquarium plans to order 170 clown fish cookies this month.

So,

Number of shark cookies : Number of clown fish cookies = 13:17

Number of shark cookies : 170 = 13:17

Therefore,

Number of shark cookies = \frac{13}{17}(170)=130

4 0
2 years ago
The circumference (C) C of a swimming pool is 56 feet. Which formula can you use to find the diameter (d) d if you know that C=π
LiRa [457]

Since you are solving for diameter, and the equation is given to you, just isolate the variable for diameter (d).

(C)/π = (πd)/π

d = C/π is your formula you will use.

Plug in 56 for C

d = 56/π

d = ~17.825

~

3 0
3 years ago
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Find the measure of angle ADE.
Kaylis [27]
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8 0
3 years ago
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.The sum of the angles of a polygon is 900⁰ .How many sides does it have​
DanielleElmas [232]

Answer:

heptagon

Step-by-step explanation:

5 0
3 years ago
The radius of Earth is about 3,980 miles. What expression can be used to find the approximate diameter of Earth?
Tatiana [17]
To find the diameter, you use the formula: 2x. we use 2x because the radius is 2 times the diameter.

so, if the radius is 3,980, then we substitute that into the formula.

2(3,980)

this will give us 7960. the diameter is 7960 miles.
3 0
3 years ago
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