In Mr.Evans class he has 25 students. If the ratio of boys to girls is 2 boys for every 3 girls, how many girls are in the class

Answers

Answer 1

Answer:

15

Step-by-step explanation:

3x5=15

2x5=10

i need to waste space so yeah


Related Questions

What is 602,000,000 written in scientific notation

Answers

Answer:

6.02x10^8

Step-by-step explanation:

(-2g + 7) - (g+11) =​

Answers

The correct answer is -3g-4 :)

Line A: y = 1 2 x + 2 Line B: y = − 1 2 x + 7 Line C: y = −2x + 4 Line D: y = 1 2 x + 5 4 Which lines are perpendicular? A) A and B B) A and C C) B and C D) A and D

Answers

Answer:

Check the explanation.

Step-by-step explanation:

The slope-intercept form of the equation is

[tex]y=mx + b[/tex]

where m is the slopeb is the y-intercept

Line A:

[tex]y = 1 2 x + 2[/tex]

The slope of line A:

[tex]m_A=12[/tex]     ∵ comparing with [tex]y=mx + b[/tex]

Line B:

[tex]y = -1 2 x + 7[/tex]

[tex]m_B=-12[/tex]    ∵ comparing with [tex]y=mx + b[/tex]

Line C:

[tex]y = -2x + 4[/tex]

[tex]m_C=-2[/tex]     ∵ comparing with [tex]y=mx + b[/tex]

Line D:

[tex]y = 12x + 5 4[/tex]

[tex]m_D=12[/tex]     ∵ comparing with [tex]y=mx + b[/tex]

As we know that the product of the slopes of perpendicular lines is -1.

i.e. their slopes are opposite of the reciprocal of each other.

Now, let us check the OPTIONS:

Option A)  A and B

Check:

[tex]m_A=12[/tex]  

[tex]m_B=-12[/tex]

As the product of the slopes A and B is NOT -1, so the lines A and B are not perpendicular. Hence, option A is NOT true.

Option B)  A and C

[tex]m_A=12[/tex]  

[tex]m_C=-2[/tex]

As the product of the slopes A and C is NOT -1, so the lines A and C are not perpendicular. Hence, option B is NOT true.

Option C)  B and C

[tex]m_B=-12[/tex]

[tex]m_C=-2[/tex]

As the product of the slopes B and C is NOT -1, so the lines B and C are not perpendicular. Hence, option C is NOT true.

Option D)  A and D

[tex]m_A=12[/tex]  

[tex]m_D=12[/tex]

As the product of the slopes A and D is NOT -1, so the lines A and D are not perpendicular. Hence, option D is NOT true.

Therefore, NO OPTION is correct.

plz help me or i will literly start cying cuz i dont rly understand

Answers

Answer: Its very simple to solve slopes

Step-by-step explanation:

All you need to do is to calculate the difference in the y coordinates of the 2 points and divide that by the difference of the x coordinates of the points(rise over run). That will give you the slope.

what is this !?help please!​

Answers

Triangle A: Right
Triangle B: I think it’s Obtuse

Sorry if it’s wrong
triangle A is DEFINITELY A RIGHT ANGLE bc that lil square they gave u means it’s 90 degrees and that’s a right angle.
triangle B is definitely obtuse bc it has an angle over 90 degrees and two acute angles so it’s definitely obtuse.

Miguel's cat, Chester, weighs 6.8 pounds. Chester's vet tells Miguel to feed the cat 3 4 of an ounce of canned food daily for each pound of body weight. The next morning, Miguel opens a new can of food to feed Chester. If the can holds 5.5 ounces, how much food will be left after one day? Write your answer as a whole number, decimal, fraction, or mixed number. Simplify any fractions.

Answers

Answer:

0.4 ounces

Step-by-step explanation:

In a day

Miguel is to feed Chester ,

Chester can eat 3/4 of an ounce for each pound of body weight.

Chester weighs 6.8 pounds

Hence:

1 pound = 3/4 ounce

6.8 pounds = x ounces

Cross Multiply

x = 6.8 × (3/4) ounces

x = 5.1 ounces

Chester is to be fed 5.1 ounces of food each day.

The amount of food left after 1 day

= 5.5 ounces - 5.1 ounces

= 0.4 ounces

Hence, 0.4 ounces of food is left after 1 day

it takes 50 pennies to fill a roll. and how many are in 8 rolls

Answers

Answer:

250 pennies

Step-by-step explanation:

50 x 8 = 250

please help me and show work!!!!!!!!!

Answers

Answer:

C

pls mark brainliest if possible

Step-by-step explanation:

volume of square pyramid = area of base* 1/3*height of pyramid

v=a(1/3h)

a = area of base = 11*11 = 121

h=height = 15 cm

v=121 (1/3*15)

v = 121*5 = 605 cm^3

the answer is C

name the line of intersection of planes of GABH and FEHG

Answers

Answer: line HG

Step-by-step explanation:

The line which is intersecting the planes of GABH and FEHG will be line GH.

What is a geometrical figure?

A collection of continuous, non-empty points that together form inextensible, non-deformable shapes are known as geometric figures.

A figure or region with a defined border that is formed by combining a specific number of curves, points, and lines is referred to as a geometric shape.

Another meaning of the geometrical figure is the figure which is in 2D and becomes by intersections of lines.

Given two plans GABH and FEHG

It is clearly visible that both plans are intersecting and separated by a line GH.

To learn more about the geometrical figure,

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If (m+n)^2=m^2+n^2, what is (3^m)^n?

Answers

Answer:

[tex](3^m)^n=1[/tex]

Step-by-step explanation:

[tex](m+n)^2=m^2+n^2\\m^2+2mn+n^2=m^2+n^2\\(m^2+n^2)-(m^2+n^2)+2mn=0\\2mn=0\\This\ equation\ has\ two\ solutions\ : m=0,n=0\\\\But\ either\ way\ will\ result\ in\ the\ same\ answer.\\If\ m=0\ then,\\(3^0)^n\\=1^n\\=1\\\\If\ n=0 \ then,\\(3^m)^0\\=1[/tex]

What is the sum of the integers between the square root of 30 and the square root of 90​

Answers

Answer:

[tex]\sqrt{30}+ 3\sqrt{10}[/tex]

Step-by-step explanation:

[tex]\sqrt{90}=\sqrt{9}*\sqrt{10} =3\sqrt{10} \\\\\\\sqrt{30}+ 3\sqrt{10}[/tex]

Wednesday morning, the temperature was −12 ∘F. By the afternoon, the temperature was 23 ∘F. Write and then evaluate a subtraction expression to determine the number of degrees of change in temperature between the morning and the afternoon

Answers

Answer:

-12-(-23)

Step-by-step explanation:

2 subtraction signs will turn into addition

The mean absolute deviation tells you how spread out or how clustered around the mean a set of data is. This is the variation in the data. To compare sets, a higher mean absolute deviation indicates that the data points are more spread out from the mean. A lower mean absolute deviation indicates dat

Answers

Answer:

data points or values are nearer to the mean

Step-by-step explanation:

Given that mean absolute deviation tells you how to spread out or how clustered around the mean a set of data is.

Hence, in a comparison of sets, a higher mean absolute deviation indicates that the data points are more spread out from the mean.

On the other hand, a lower mean absolute deviation indicates that the data points are nearer to the mean than a data set with a higher mean absolute deviation

Answer:

hes right ↑

Step-by-step explanation:

40 pages read in 20 minutes. what is the unit rate?

Answers

Answer:

2 pages per minute.

Step-by-step explanation:

40 pages / 20 minutes

= 40 / 20 = 4 / 2 = 2

Therefore, you read 2 pages per minute.

The other options are “both” or “neither”

Answers

Answer:

Step-by-step explanation:

ΔABC ~ ΔWXY

Which set of points represents a function? { ( 1 , − 2 ) , ( 3 , − 5 ) , ( 3 , − 2 ) , ( 5 , − 7 ) , ( 7 , − 8 ) } { ( 1 , − 2 ) , ( 3 , − 5 ) , ( 3 , − 2 ) , ( 5 , − 7 ) , ( 7 , − 8 ) } { ( 0 , 1 ) , ( 1 , − 3 ) , ( 2 , − 5 ) , ( 3 , − 7 ) , ( 4 , − 9 ) } { ( 0 , 1 ) , ( 1 , − 3 ) , ( 2 , − 5 ) , ( 3 , − 7 ) , ( 4 , − 9 ) } { ( − 1 , 1 ) , ( − 1 , 3 ) , ( − 1 , 5 ) , ( − 1 , 7 ) , ( − 1 , 9 ) } { ( − 1 , 1 ) , ( − 1 , 3 ) , ( − 1 , 5 ) , ( − 1 , 7 ) , ( − 1 , 9 ) } { ( − 4 , 0 ) , ( − 3 , − 1 ) , ( − 3 , 1 ) , ( 0 , − 2 ) , ( 0 , 2 ) } { ( − 4 , 0 ) , ( − 3 , − 1 ) , ( − 3 , 1 ) , ( 0 , − 2 ) , ( 0 , 2 ) }

Answers

Given:

The set of points.

To find:

Which set of points represents a function?

Solution:

A set of points represents a function if there exist a unique y-value for each x-value.

It option A, the set of points is

{(1,-2), (3,-5), (3,-2), (5,-7), (7, -8)}

This is not a function because there exist two y-values y=-5 and y=-2 for x=3.

It option B, the set of points is

{(0,1),(1,−3),(2,−5),(3,−7),(4,−9)}

This is a function because there exist a unique y-value for each x-value.

It option C, the set of points is

{(−1,1),(−1,3),(−1,5),(−1,7),(−1,9)}

This is not a function because there exist five y-values y=1,3,5,7,9 for x=-1.

It option D, the set of points is

{(−4,0),(−3,−1),(−3,1),(0,−2),(0,2)}

This is not a function because there exist two y-values y=-1 and y=1 for x=-3.

Therefore, the correct option is B.

Answer:

problem ...

Which of the following sets represents a function?

{(3, 5), (-1, 7), (3, 9)

{(1, 2), (3, 2), (5, 7)}

{(1, 2), (1, 4), (1, 6)}

Step-by-step explanation:i think is

{(1, 2), (3, 2), (5, 7)}

does a vertical line have zero slope?

Answers

Answer:

he slope of a line can be positive, negative, zero, or undefined. A horizontal line has slope zero since it does not rise vertically (i.e. y1 − y2 = 0), while a vertical line has undefined slope since it does not run horizontally (i.e. x1 − x2 = 0).

Step-by-step explanation:

Answer: yes it’s undefined

Step-by-step explanation:

In ΔDEF, the measure of ∠F=90°, ED = 65, DF = 33, and FE = 56. What ratio represents the cosine of ∠D?

Answers

Answer:

.51

Step-by-step explanation:

Answer:

33/65

Step-by-step explanation:

Find the unit rate.

297 words in 5.5 minutes

The unit rate is
words per minute.
yo please do it right. ill mark brainliest only if its correct

Answers

Answer:

Unit rate is 54 words per minute

Step-by-step explanation:

297 / 5.5

297 ÷ 5.5 = 54

You can divide 297 by 5.5 to get the unit rate. 297/5.5 equals 54 words per minute.

Courtney is twice as old as Andre and three years older than Natalie. Courtney is half Shari's age. The difference between Shari's age and Natalie's age is the same as the sum of Courtney's age and Andre's age. The equation below represents their ages.

Answers

The question does not seem complete, but I'll represent the statement mathematically and look for their ages each. This is because the worst they can ask for is their ages.

Let C stand for Courtney's age, A for Andrei's age, N for Natalie's age and S for Shari's age. From the question we can deduce the following:

C = 2A

C = N + 3

C = S/2

S - N = C + A

S = 2C, N = C - 3 and A = C/2, therefore we have

2C - (C - 3) = C + C/2

C + 3 = C + C/2

C/2 = 3 and C = 6

A = C/2

A= 6/2

A = 3

N = C - 3

N = 6 - 3

N = 3

S = 2C

S = 2 x 6

S = 12.

C = 6, A = 3, N = 3 and S = 12

Is this correct if not what’s the answer

Answers

Answer:

They are congruent by SSS.

Step-by-step explanation:

9514 1404 393

Answer:

≅reflexiveQRcongruent

Step-by-step explanation:

A geometrical object is congruent to itself by the reflexive property of congruence.

  RT ≅ RT by the reflexive property

__

Your other choices are correct.


A Boeing 737 airplane travels about 500 miles per hour. The function d(t) = 500t represents the number
miles traveled in t hours. How far does the plane travel in 3.5 hours?
A. O 2,579.50 miles
B. 1,500.00 miles
C. 142.86 miles
D. 1,750.00 miles

Answers

Answer:

b

Step-by-step explanation:

The distance is 1,750.0 miles if a Boeing 737 airplane travels about 500 miles per hour option (D) is correct.

What is a function?

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

It is given that:

The function d(t) = 500t represents the number of miles traveled in t hours.

Plug t = 3.5 hours in the equation of the function.

d(3.5) = 500(3.5)

d(3.5) = 1,750.0 miles

Thus, the distance is 1,750.0 miles if a Boeing 737 airplane travels about 500 miles per hour option (D) is correct.

Learn more about the function here:

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(GIVING BRAINLIEST) During a snowstorm the temperature drops from 0 F to - 7 in 7 hours on average by how many degrees is the temperature changing per hour

Answers

Answer: A. 1*F

Step-by-step explanation:A-P-E-X

Write a system of equations with the solution of (4,2,0)​

Answers

Answer:

x=4, y=2, z=0

Step-by-step explanation:

The most symple is x=4, y=2, z=0 b/c the coordinate pairs equate to (x, y, z,)

He prime factorization of a number is 2 cubed times 3 squared times 5. Which is a true statement about the factors of the number? Fifteen is a factor of the number because both 3 and 5 are prime factors. Fifteen is not a factor of the number because 15 is odd and the number is even. Sixteen is a factor for the number because 2 cubed = 8 and 16 is divisible by 8. Sixteen is not a factor of the number because the exponent of 2 is not even.

Answers

Answer:

Fifteen is a factor of the number because both 3 and 5 are prime factors.

Step-by-step explanation:

The computation is shown below:

The cube of 2 is

= 2^3

= 8

The square of 3 is

= 3^2

= 9

Now if we multiplied the 3 digits that it would be

= 8 × 9 × 5

= 360

As we know that the 15 is a factor of 360

Therefore the first option is correct

i.e.

Fifteen is a factor of the number because both 3 and 5 are prime factors.

And all the other options are incorrect

Answer:

15 and 35

Step-by-step explanation:

What is the value of the expression below?

3.5 x 3 over 10

Answers


1.05.......................

Answer:

1.05 or 21/20 or 1 1/20

Step-by-step explanation:

I'm just a genius

Shaq invested $900 into a savings account that pays annual simple interest. At the end of 9 years, he earned $461.70 in interest. What is the interest rate on the savings account? Round to the nearest tenth of a percent.​

Answers

Answer:

0.051

Step-by-step explanation:

In which situation below would you want to use the Explicit Formula instead of the Recursive Formula?

A. Find the 4th term when the first term is 7 and the common difference is -2.
B.Find the 7th term when the first term is -1 and the common difference is 10.
C.Find the 106th term when the first term is 2 and the common difference is 5.
D.Find the 11th term when the first term is -3 and the common difference is 4.

Answers

9514 1404 393

Answer:

  all of them, possibly excepting the 4th term

Step-by-step explanation:

The recursive formula is good if you have terms near the one of interest. It might be used for the 4th term, but that would require that you compute the three previous terms:

  7, 5, 3, 1 . . . . requires 3 subtractions

It can be about as easy to calculate ...

  a4 = 7 -2(3) = 1 . . . . requires two* subtractions and a multiplication

__

However, for the 7th, 11th, and 106th terms, it is impractical to list all previous terms. The explicit formula is a better choice.

A.  a4 = 7 -2(3) = 1

B.  a7 = -1 +10(6) = 59

C.  a106 = 2 +5(105) = 527

D.  a11 = -3 +4(10) = 37

_____

* The explicit formula is ...

  an = a1 +d(n -1)

The operations identified in this formula (in the order required by the Order of Operations) are subtraction, multiplication, and addition. For a negative common difference, that amounts to two subtractions and a multiplication.

For manual evaluation, the work involved in using the recursive or explicit formulas for the 4th term is about the same, if the arithmetic is easily done mentally (as here).


Please help ASAP!!!!!!!!!!!

Answers

Answer:

5 and 4

Step-by-step explanation:

Solve for C. Show all work please.

C= 5/9 ( F - 32)

Answers

Answer:

Step-by-step explanation:

It is solved for C unless you C = 5/9 * F - 32*5/9

C = 5/9F - 17.8

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

If you mean F, then Multiply both sides by  9/5

9/5 * C = F - 32

9/5  * C + 32 = F

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

A quick way to do this is to multiply by 2 and add 32

F = 2*C + 30

My wife, an American, always had to do this when she heard the daily temperatures in Canada.

first multiply both sides by 9/5 to get:

9/5C= F -32

Add 32 to both sides and transpose to get:

F=9/5C + 32

these are the formulas to translate between Fahrenheit and Celsius temperatures

Fahrenheit and Celsius meet at - 40 degrees

that is - 40 Fahrenheit = - 40 Celsius    

So alternitive formulas for the conversations can be written:

F=9/5 (C+40) - 40

C=5/9 (F+40) - 40

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