three-fifth of the men in chemistry class have beards and two-third of the women have long hair.if there are 120 men in the class and 46 are not in the above groups, how many men and how many women are there in the class​

Answers

Answer 1

Answer:

30

Step-by-step explanation:


Related Questions

HELP!!!What is the length of BC in the right triangle below

Answers

Answer: 39

Step-by-step explanation:

Answer:

D. 39

Explanation:

you use the pythagorean theorem which is [tex]a^{2}+b^{2} = c^{2}[/tex]

if you look at the triangle we can see that we have to find the length of the hypotenuse (BC).

so your equation will look like this:  

         [tex]15^{2} + 36^{2} =c^{2}[/tex]

Solving For The Length Of BC

1. [tex]15^{2} + 36^{2} =c^{2}.[/tex]      (solve for [tex]15^{2} and 36 ^{2}[/tex])

2. C= 225+1296      (add)

3.  C= 1521               (find the square root of 1521)

4. [tex]\sqrt{1521} = 39[/tex]

Therefore, 39 is your answer

Hope this helps!

hello! please help me solve this asap!

Answers

Answer:

3

Step-by-step explanation:

y-3 = 3x+12

y = 3x +15

so slope = 3 ( number next to the x)

Which expression is equivalent to the expression -3 (4r - 2) -2r?

Answers

Answer:

-14r + 6

Step-by-step explanation:

-12r + 6 - 2r

please help i will mark branliest

Answers

Answer:

C

Step-by-step explanation:

Please Help me with this I don’t understand
Polygon E’F’G’H’

is a dilation image of the polygon

EFGH

What is the scale factor of the dilation?

A.3

B.6

C.12

D.1/3

Answers

Answer:

The scale factor of the dilation is 3 A

Step-by-step explanation:

If a polygon dilated by a scale factor k, then the ratio between its sides and the corresponding sides of its image equals k The length of a vertical segment is the difference between the y-coordinates of its endpoints

In the given figure

∵ EFGH is a polygon

E = (-2, 1), H = (-2, -1)

∵ EH is a vertical side

→ By using the 2nd rule above

∴ The length of EH = 1 - (-1) = 1 + 1

The length of EH = 2

∵ E'F'G'H' is its image after dilation by scale factor k

E' = (-2, 5), and H' = (-2, -1)

∵ E'H' is a vertical side

∴ The length of E'H' = 5 - (-1) = 5 + 1

The length of E'H' = 6

→ By using the 1st rule above

∴  [tex]\frac{E'H'}{EH}[/tex] =  [tex]\frac{E'F'}{EF}[/tex] =  [tex]\frac{H'G'}{HG}[/tex] =  [tex]\frac{F'G'}{FG}[/tex] = k

∵  [tex]\frac{E'H'}{EH}[/tex] = k

∵ [tex]\frac{E'H'}{EH}[/tex] = [tex]\frac{6}{2}[/tex]

∴  [tex]\frac{E'H'}{EH}[/tex] = 3

k = 3

The scale factor of the dilation is 3

please write an equation for this problem to represent the relationship between the submarines elevation and time.
A submarine is descending to examine the seafloor 2,100 feet below the surface. It takes the submarine 2 hours to make this descent.

Answers

Answer:

I can see if one of my friends can help

Answer:

a?

Step-by-step explanation:

No no BBB

Solve this quadratic equation using factorisation. I will give brainliest, 5 stars and thanks! :) Kind of urgent, I don't have long to hand my assignment in.

x^2 - 6 = 5x

(Please explain how you worked it out as well, I'm not very confident with this and I need to know how it's done. Thank you :) )

Answers

Answer:

x2 + 5x-6

Step-by-step explanation

Consider the form

x

2

+

b

x

+

c

. Find a pair of integers whose product is

c

and whose sum is

b

. In this case, whose product is

6

and whose sum is

5

.

1

,

6

Write the factored form using these integers.

A card is drawn from a standard deck of 52 playing cards. Find the probability that the card is a jack or a nine.
A) 5/52
B) 6/52
C) 7/52
D) 8/52
Show work pls.

Answers

Answer:

1/169

Step-by-step explanation:

Assume jacks are “a”

and nines are “b”

a= 4/ 52

b= 4/52

now multiply

4/52 x 4/52 = 16/52

and simplify

4/13

(i dont know why the answer choices are different)

18.4(x-8)=-32+4**
- Many Solutions
- No Solution
- One Solution

19.-(3-6x)=6x+5 *
- One Solution
- No Solution
- Many Solutions

Can someone plz help me on this it’s due soon :)

Answers

Answer:

18. one solution 19. No solutions

Step-by-step explanation:

Alisa, Mykia, and Martin decide to share the responsibility of walking their dog every day. There are 365 days in a year. How many days each year does Alisa need to walk the dog?

Answers

Answer: 121 2/3 days

Step-by-step explanation:

Number of days in a year = 365 days

Number of friends = 3 friends

The number of days each year that Alisa need to walk the dog will be:

= Number of days in a year / Number of friends.

= 365 / 3

= 121 2/3 days

= 121 days + (2/3 × 24hours)

= 121 days 16 hours

Note that 24 hours = 1 day

Questions From the table shown:
a) Describe in words the pattern relationship.
b) Write a rule to describe the pattern shown.
c) If the table had an input of 7, what would be the output?
d) If the table had an output of 31, what would be the input?

Answers

Answer:

Someone help me with this question

Step-by-step explanation:

Can somebody help me out with thisss ?????

Answers

Answer:  x = 37

===================================================

Explanation:

The combination of angle x and the 93 degree angle forms x+93. This obtuse angle is congruent to 130 because these two angles are alternate interior angles and because line L is parallel to line M.

So,

x+93 = 130

x+93-93 = 130-93 .... subtracting 93 from both sides

x = 37

find the angle p (add a explanation too)​

Answers

Step 1: Find the sum of the interior angles

Use this formula: 180 x (n - 2)

n is the number of sides of the polygon

Work:

180 x (4 - 2)

180 x 2

360

Step 2: Find the angle right above the 94 degree angle

The entire angle (a circle) is equal to 360 degrees. To find the part we're looking for (inside of the polygon), we need to subtract the angle we already know from 360.

Work:

360 - 94

266

Step 3: Set up an equation to find the missing angle p

We now know every angle except p! And we know the sum of the interior angles. Knowing this information makes it really easy to set up an equation.

360 = 12 + 75 + 266 + p

360 = 353 + p

p = 7 degrees

Does this answer make sense?

Yes! Although the drawing may not be to scale, it is very possible that angle p could be 7 degrees because of how 12 degrees looks on this graph.

Hope this helps!! :)

Which of the following coordinate points is a solution to the inequality y>= -3x+6
A (-2,4)
B (3,-4)
C (4,3)
D (-5,-3)​

Answers

Answer:

I need help ok so this is correct it is c

Step-by-step explanation: First

Quickkk solve by graphing u can use a graph I just need the work

y = 3x + 2
6x - 2y = -4

Answers

Answer:

-3x-3y=-24

divide the equation by 3

-x-y=-8

multiply -1

x+y=8

second equation

x+y=8

same equation

so answer is

x+y=8

Step-by-step explanation:

Tools of Geometry: Question 10 Quadrilateral ABCD has vertices A = (0, 4), B = (0, 3), C = (3, 0), and D = (3 ,4). Quadrilateral A'B'C'D' is formed when quadrilateral ABCD is reflected over the x-axis. What are the coordinates of quadrilateral A'B'C'D' ? A' = (-4, 0), B' = (-3, 0), C' = (0, 3), and D' = (4, 3) A' = (0, -4), B' = (0, -3), C' = (-3, 0), and D' = (-3, -4) A' = (0, -4), B' = (0, -3), C' = (3, 0), and D' = (3, -4) A' = (0, 4), B' = (0, 3), C' = (-3, 0), and D' = (-3, 4)

Answers

9514 1404 393

Answer:

  (c)  A' = (0, -4), B' = (0, -3), C' = (3, 0), and D' = (3, -4)

Step-by-step explanation:

Reflection over the x-axis negates the y-coordinate only. The appropriate choice is ...

  A' = (0, -4), B' = (0, -3), C' = (3, 0), and D' = (3, -4)

I will give brainliest to the correct answer!

Answers

Answer:

 c). 2x^3  x  ^3[tex]\sqrt{4}[/tex]

Step-by-step explanation:

i hope this is correct! have a good day! c:


Please help me
what is the premiter of the semi circle​

Answers

Answer:

B

Step-by-step explanation:


78% of 68 is what number?

Answers

Answer:

53.04

Step-by-step explanation:

answer the picture below
for 14 points

Answers

Answer:

No he will not have enough rice, because the cylinder is 68 in3

Step-by-step explanation:

please help tight away!! whst is the solution to the system of equations ​

Answers

Answer:

(2,4)

Step-by-step explanation:

the solution to a system of equations is where two lines intersect.


Please helpoppplllll mei need to complete this I will give brainly

Answers

Answer:

(5,-6) I think

Step-by-step explanation:

Please help me I’ll mark you brainiest

Answers

Answer: A parallelogram has two parallel pairs of opposite sides. A rectangle has two pairs of opposite sides parallel, and four right angles. It is also a parallelogram, since it has two pairs of parallel sides.

Step-by-step explanation:

Convert into degrees. 9pi/6

Answers

Answer:

270 degrees

Step-by-step explanation:

Take note that to convert Pi to Radians you need to use the formula of

180 degrees = Pi radians

Therefore if you have 180 degrees multiplied by 9 Pi over 6 you get the degree measurement of 270

I believe, The answer to your question is:

B. 270°

Hope I helped! Have a fantastic day! Bye, you got this! :)

The Choir Booster Club had a budget of $1,500 at the start of the school year. They spend $225.30 on t-shirts, $482.25 on lost uniforms, and $135.68 on a holiday party. How much does the booster club have left in their budget?

Answers

Answer:

$656.77 is left

Step-by-step explanation:

-$1,500 budget

Spends: $225.30, $482.25, 135.68.

Now subtract all these values with 1,500.

1500 - 482.25 - 225.30 - 135.68 = 656.77

Answer: C

Step-by-step explanation:

I took this before

please help me . weak in here

Answers

9514 1404 393

Answer:

  x = 10√3

Step-by-step explanation:

The Pythagorean theorem tells you ...

  FB^2 = BC^2 +CF^2

  FA^2 = FB^2 +BA^2

Substituting for FB^2, we have ...

  FA^2 = BC^2 +CF^2 +BA^2 = x^2 +x^2 +x^2

  FA^2 = 3x^2

  FA = x√3 = 30 . . . . take the square root and substitute for FA

  x = 30/√3

  x = 10√3

What is the equation of the line that passes through the points 1/2/3 and (-1,-1

a.y=-6x+5

b.Y=5/6X-1/6

C.Y=2/3X+1/5

D.y=6/5x+1/5

Answers

Answer:

(1, 2/3) (-1, -1) are the points. use the slope formula to find the slope y2-y1/x2-x1

(-1 - 2/3) / (-1 -1) (answer both sides of the division side)

-5/3 / -2  (divide)

slope = 5/6  (the slope)

plug in values you know into point-slope form (y -y1) = m(x-x1)

y - (-1) = 5/6 (x - (-1) (i chose the easier point to plug in. two neg. make a pos. )

y +1 = 5/6 (x +1)  (use the distributive property)

y +1 = 5/6x+5/6  (subtract 1 from both sides)

y = 5/6x - 1/6  or B (this is the equation)

Step-by-step explanation:

I hope this helped :))

What is the first step to solving this equation (5x-11=42)?
A. add 11 to both sides
B. divide both sides by 5
C. multiply both sides by 5
D. subtract 11 from both sides

Answers

Answer:

First, you have to add 11 on both sides, so the answer is A

What is the first step to solving this equation (5x-11=42)?
A. add 11 to both sides
B. divide both sides by 5
C. multiply both sides by 5
D. subtract 11 from both sides

Add the inside number so it would be A

what does 8+2y-5x+y=x-1

Answers

The value of x is 1/2y+3/2

Answer:

y = 2x - 3

Step-by-step explanation:

8 + 2y - 5x + y = x - 1

3y = 6x - 9

y = 2x - 3

slope is 2, y-intercept is -3

Hurry i need this right now !!!
The ages of three brothers are consecutive integers. The sum of their ages is 24. Let b represent the youngest brother.
Write an expression to represent the second oldest brother.

Write an expression to represent the oldest brother.

Write an equation to represent the sum of all three brothers.

Answers

Answer:

Stan ran 4 and StartFraction 7 Over 10 EndFraction miles, which was 1 and StartFraction 3 Over 10 EndFraction fewer miles than Matt ran. Four students wrote and solved equations to find m, the number of miles that Matt ran. Which student wrote and solved the equation correctly?Stan ran 4 and StartFraction 7 Over 10 EndFraction miles, which was 1 and StartFraction 3 Over 10 EndFraction fewer miles than Matt ran. Four students wrote and solved equations to find m, the number of miles that Matt ran. Which student wrote and solved the equation correctly?Stan ran 4 and StartFraction 7 Over 10 EndFraction miles, which was 1 and StartFraction 3 Over 10 EndFraction fewer miles than Matt ran. Four students wrote and solved equations to find m, the number of miles that Matt ran. Which student wrote and solved the equation correctly?Stan ran 4 and StartFraction 7 Over 10 EndFraction miles, which was 1 and StartFraction 3 Over 10 EndFraction fewer miles than Matt ran. Four students wrote and solved equations to find m, the number of miles that Matt ran. Which student wrote and solved the equation correctly?Stan ran 4 and StartFraction 7 Over 10 EndFraction miles, which was 1 and StartFraction 3 Over 10 EndFraction fewer miles than Matt ran. Four students wrote and solved equations to find m, the number of miles that Matt ran. Which student wrote and solved the equation correctly?

Step-by-step explanation:

Stan ran 4 and StartFraction 7 Over 10 EndFraction miles, which was 1 and StartFraction 3 Over 10 EndFraction fewer miles than Matt ran. Four students wrote and solved equations to find m, the number of miles that Matt ran. Which student wrote and solved the equation correctly?Stan ran 4 and StartFraction 7 Over 10 EndFraction miles, which was 1 and StartFraction 3 Over 10 EndFraction fewer miles than Matt ran. Four students wrote and solved equations to find m, the number of miles that Matt ran. Which student wrote and solved the equation correctly?

Answer:

[tex]b+1\\b+2\\b+(b+1)+(b+2)=24[/tex]

Step-by-step explanation:

If [tex]b[/tex] represents the youngest brother's age, the second oldest brother's age can be written as [tex]b+1[/tex] and the third can be written as [tex]b+2[/tex], since they're all consecutive.

The sum of all their ages is then [tex]b+(b+1)+(b+2)[/tex] which is equal to [tex]24[/tex], as given.

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