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kirill [66]
3 years ago
14

There are approximately 40,000 people that live in a city. A sample of 20,000 people from that city are asked and 8,000 live in

an apartment.
How many people from the entire population would you expect to live in an apartment?
Mathematics
1 answer:
Archy [21]3 years ago
8 0

Answer:

16,000 people

Step-by-step explanation:

Let's write a ratio

8,000:20,000

Let's write another ratio

x:40,000

We can write a percent proportion.

\frac{8,000}{20,000} =\frac{x}{40,000}

We can see that the relationship between the denominators is multiplied by 2 so that means the relationship between 8,000 and x is x is 2 times greater than 8,000

Let me know if you have any questions.

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One angle of an isosceles triangle measures 110°. Which other angles could be in that isosceles triangle? Choose all that apply.
andre [41]

Answer:

Therefore the correct option is 2. 35 degree.

\angle ABC=\angle ACB=35\°

Step-by-step explanation:

Consider an Isosceles Triangle, Δ ABC where,

∠BAC = 110°

TO Find:

∠ ABC = ∠ACB = ?

Solution:

For an Isosceles Triangle

Base Angles are equal

∴\angle ABC=\angle ACB=x\ (say)

Now,

Triangle sum property:

In a Triangle sum of the measures of all the angles of a triangle is 180°.

\angle A+\angle B+\angle C=180\\\\110+x+x=180\\\therefore 2x=180-110=70\\\therefore x=\dfrac{70}{2}=35\°

Therefore,

\angle ABC=\angle ACB=35\°

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Step-by-step explanation:

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Find AuB and AnB for the sets A and B.<br> A={3, 4, 5, 6, 7), B = {4, 6, 8, 10)
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