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4 years ago

Two angles are vertical angles. what are their measures if they are also complementary

1 answer:

7 0

If angles are x and y then

x = y (as they are vertical angles)

also x + y = 90

so 2x = 90

x = 45

They are both 45 degrees

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The fraction of men in a population who are married is 2/3. The fraction of women in the population who are married is 3/5. What

ANEK [815]

Answer:

7/19 of the population is single

Step-by-step explanation:

First of all, we must make some assumption about the number of married men versus the number of married women. Here, we will assume they are the same number. (Either men are married to women, or the number of gay male marriages is the same as the number of gay female mariages, or both.)

Let m and w represent the numbers of men and women in the population. Then our assumption (above) tells us ...

2/3m = 3/5w

Multiplying by 5/3, we get

w = 10/9m

So, the fraction of the population that is single is ...

(unmarried men + unmarried women)/(men + women)

((1 -2/3)m + (1 -3/5)w) / (m + w)

= (1/3m + 2/5(10/9m) / (m + 10/9m)

= (3/9 + 4/9) / (19/9) . . . . . let m cancel, simplify fractions a bit

= 7/19 . . . . fraction that is single

7 0

3 years ago

Which of the sets shown includes of set Z that are both odd numbers and multiples of 5

alina1380 [7]

None of the above because no multiples of 5 have negative numbers.moreover b,c,d contains a even number except a which is also a negative number

8 0

4 years ago

Alfred collects black and brown socks but loses a lot of them. If 60% of all his socks are brown, 20% of his brown socks are in

Ipatiy [6.2K]

Answer:

Alfred has 250 socks in his collection.

Step-by-step explanation:

Hello, great question. These types are questions are the beginning steps for learning more advanced Algebraic Equations.

Based on the information given to us we can see that out of All his Brown socks he has 20% in the wash and the rest are in his drawer. Meaning 80% of the Brown socks are in his drawer. So we first need to find how many Brown socks are in the wash. We can solve this using the Rule of Three property as shown in the picture below.

120 drawer ⇒ 80%

x wash ⇒ 20%

$\frac{120*20}{80} = 30$

Now that we have the amount of Brown socks in the washer we can add that to the amount in the drawer to find the total amount of Brown socks.

$Br = 120+30\\Br = 150$

So we now know that there are a total of 150 Brown socks. Since the question states that the Brown socks are 60% of the total we can use the Rule of Three to find the total.

150 Brown ⇒ 60%

T Total ⇒ 100%

$\frac{150*100}{60} = T$

$250 socks = T$

Finally, we can see that Alfred has 250 socks in his collection.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

5 0

4 years ago

What is the image of the point (–3, 4) after a rotation of 90° counterclockwise about the point (–3, 0)?

Snowcat [4.5K]

Initially, the point (-3,4) is in the second quadrant of the cartesian plane. If the rotation is about point (-3,0) at 90 degrees, you find a point that when connected to (-3,4) makes two lines perpendicular to each other. Since the direction is counterclockwise, you move 3 points to the left, then 4 points down. That would be (-7,0). The answer is A.

7 0

4 years ago

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You did the ball bounce activity. From the ball bounce activity you noticed that the ball bounces up from the floor at a shorter

yuradex [85]

Answer:

Step-by-step explanation:

wait so each one of them are questions right?

7 0

3 years ago

Read 2 more answers