You are given the difference of the numbers of boys and girls in a class and the ratio of boys to girls. How many boys and how many girls are in the class?
3 more boys; 5 for every 4

Answers

Answer 1

9514 1404 393

Answer:

15 boys12 girls

Step-by-step explanation:

The difference in ratio units is 5 - 4 = 1. The difference in actual quantity is 3, so 1 ratio unit must represent 3 students.

There are 5×3 = 15 boys.

There are 4×3 = 12 girls.


Related Questions

Write the equation of the line passing through the points (6,2) and (-2,-2). The equation of the line is __ Please help!!!

Answers

Answer:

y = 1/2x - 1

Step-by-step explanation:

y2 - y1 / x2 - x1

-2 - 2 / -2 - 6

-4 / -8

= 1/2

y = 1/2x + b

-2 = 1/2(-2) + b

-2 = -1 + b

-1 = b

How to solve x/m = n/p. Solve for x. Please include steps for solving. Thank you

Answers

Answer:

[tex]x=\frac{n}{p}m[/tex]

Step-by-step explanation:

Since we have two variables on the left side (x and p), and they are being divided, we need to do the opposite in order to get it to the other side. Therefore, we multiply both sides of the equation by m.

Doing that, we get

[tex]\frac{x}{m} m=\frac{n}{p}m\\\\\\So,x= \frac{n}{p}m\\[/tex]

Please Help ASAP will give a brainliest the questions are in the photos
{HELP WITH MATH}

Answers

Answer:

its should almost be certainly be A

Step-by-step explanation:

The probability that record drawn randomly from a standard deck of 52 cards is a four

Answers

Answer:

1/13

Step-by-step explanation:

no.of sample space n(S) = 52

no.of favourable cases n(E) = 4

probability of getting a four p(E) = n(E) / n(s)

or, 4/52

or 2/26

or 1/13

therefore,the probability of getting a four is 1/13.

Maya, Greg, and Austin sent a total of 81 text messages during the weekend. Austin sent 2 times as many messages as Maya. Greg sent 9 more messages than Maya. How many messages did they each send?

Answers

Maya=18 Greg =27
Austin =36

Please help me 4⅗ ÷ ⅕ =

Answers

Answer:

23

Step-by-step explanation:

just used a calculator

23

Let’s start by making the mixed number an improper fraction. To do this you multiply the whole number by the denominator and add the numerator.

4 x 5 + 3 = 23

No we have 23/5 divided by 1/5

We have common denominators but you don’t need them for multiplying and dividing fractions. To discuss fractions you just go across, but there’s a thing. You have to flip the second fraction then you can multiply instead of divide.

So

23/5 x 5/1

23 x 5 = 115

5 x 1 = 5

115/5

This can be simplified to 23 because 5 divided by 115 is 23.

Hope this helps

HI i need help wit this work

Answers

Answer:

1/6 in 1/2 =  B

1/6 in 2/3 = C

1/4 in 1/2 = D

1/9 in 1/3 = A

Step-by-step explanation:

7 7/15 Write in decimal to the nearest hundredths 7 7 over 15

Answers

7.47 (rounded to nearest hundredth)

Answer:

.47 because 7/15 is 0.466

Step-by-step explanation:

PLEASE HELP ME ITS ALGEBRA THANK YOUUUU

Answers

Answer: 171 attendees

Step-by-step explanation:

I answered another similar question by you earlier, so I really hope you read through this explanation, as I will go far in depth.  It's important you learn to do this so as not to simply skate through homework, then struggle with assessment.

For this problem, you have to find something called a unit price.

A unit price is the price in dollars per thing.

In this case, the price in dollars for the whole group is $132 for many things, 66 attendees.

Because 66 attendees costs $132, to find out how much money a single attendee costs, simply divide $132 by 66 to get 2$ for 1 attendee.

With this information, it is very straightforward to determine the number of attendees for $342.  Simply divide $342 by $2 to get 171 attendees.

I really hope it helps :) and please, let me know if you want me to explain in more depth, the unit you are currently in is a fundamental part of early math, and it is important you understand it.

can anyone help me with question b

Answers

Answer:

nnkbnlkn lk kgkbnlnbkvnbklcnlkbnblknbklv.

Step-by-step explanation:

5.) I somehow got $50 to buy hair dye, so I got 4 bottles of hair dye I had 5 dollars left, how
much was the hair dye?

Answers

Answer:

10

Step-by-step explanation:

is the answer

mark me as brainlest

Answer:

The hair dye was $11.25

Step-by-step explanation:

4x+5=50

4x=45

x=11.25

representation of the function f(x)=-2x2+8x-6

Answers

X-intercepts: (1,0), (3,0)
Y-intercepts: (-6,0)

elise says if u subtract 12 from my number and multiply the difference by -7 the result is -133 what is Elise's number

Answers

Answer:

40

Step-by-step explanation:

Evaluate 6-(2/3)2 please

Answers

Answer:

4  2 /3

Step-by-step explanation:

Exact Form:

14 /3

Decimal Form:

4.  6

Mixed Number Form:  

4  2 /3

All you do is Simplify the expression.

So, you do 6 - 2/3.

Then, you multiply that result by 2.

Therefore, your answers would be 4  2 /3.

-kiniwih426

The Original Price of a 4ft×4ft Boards is $12.78, but when you buy 10 or more you pay $10.80. You only need 8, 4ft × 4ft Boards Which would be the better deal?​

Answers

:) I don’t know the answer .

Express the following rate as a unit rate: 28 1/3 minutes to run 3 1/3 miles​

Answers

Answer:

28.20

Step-by-step explanation:

60 seconds in a minute

1/3 of a minute is 20 seconds

can anyone heelp me pls pls

Answers

Lotion - Liquid

Suspension - semisolid

Capsule - solid

hope this helps: )

Use rounding to the nearest whole number to estimate the product

4 1/4 • 7 9/17

A) About 32
B) About 35
C) About 40
D) About 25

Answers

Answer:

A) About 32

Step-by-step explanation:

4 1/4 • 7 9/17

The first one is rounded down as 1/4 < 1/2 and the second one rounded up as 9/17 > 1/2.

4 * 8 = 32

Correct choice is A

4 1/4=17/47 9/17=128/17

Product

17/4(128/17)128/432

Option A

Bryon purchased a box of candy at the store. On his way home he ate 1/4 of the candy from the box. At dinner with friends later that night he served 1/2 of what was left. If there are 6 chocolates left in the box, how many did the box contain to start with?​

Answers

Answer:

6+6=12

12= 3/4th of the entire box

4=1/4th of the entire box

12+4=16

There was 16 chocolates originally.

Step-by-step explanation:

6 are left , 1/2 was eaten and a 1/4 was eaten. 6 left is equal to a 1/4. if a quater is 6 and their are 4 1/4 in a whole at 6 represent each quarter then 6*4=24

Given the relation shown in the table below :

Answers

Answer:

domain: -7, -1, 0, 1

Range: -1, 0, 1, 2, 7

Step-by-step explanation:

I don't know the drop-down menu choices so I can't answer that one for you sorry :(

But I hope this helps :)

Calculate the work done to stretch an elastic string by 40cm if a force of 10N produces an extension of 4cm in it?​

Answers

The work done to stretch an elastic string by 40cm is 20 Joules

Hooke law states that the force (F) applied to a spring is directly proportional to the extension (e).

F ∝ e

F = ke

k is the constant

Given that a force of 10N produces an extension of 4cm, hence:

F = ke

10 = k(4)

k = 2.5 N/cm

For an extension of 40cm, the work done is:

Work done = (1/2)ke²

Work done = (1/2)(2.5 N/cm)(40 cm)² = 2000Ncm = 20 Nm

Work done = 20 Joules

The work done to stretch an elastic string by 40cm is 20 Joules

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MATH PLEASE HELP!!!!!!!!

Answers

Go to desmos and input this equation. It will show you the graph

Ahmed went for a walk and covered 5-kilometre distance in 25
minutes. Help him to find his speed of walking.

Answers

5/0.25 = 20km/h

or

5000/1500 = 3.33m/s

Answer:

help with this https://brainly.com/question/25211060

Step-by-step explanation:

BAKERY Rolls are being prepared to go to grocery stores, Divide 72 rolls
into 2 groups so the ratio is 3 to 5,

Answers

Answer:

27:45

Step-by-step explanation:

The ratio is 3:5, so the total is 8. 72/8 is 9. 9*3 is 27, and 9*5 is 45, so the two groups consist of 27 and 45 BAKERY Rolls.

What are the similarities and differences between a histogram and a frequency table?

Answers

Answer:

A frequency distribution table lists the data values, as well as the number of times each value appears in the data set. A histogram is a display that indicates the frequency of specified ranges of continuous data values on a graph in the form of immediately adjacent bars.

Step-by-step explanation:

Pam is baking cupcakes. The recipe calls for 4 cups of sugar, She already put in 3 cups. How many more cups does she need to put in?

(write the equation use "n" as your variable" ​

Answers

https://brainly.com/invite/3caaa23db4167cc1029ce1999a411bee?utm_source=invite&utm_medium=link&utm_campaign=bfp_parental_feed&utm_term=parent

The perimeter of a poster is 16 feet. The area is 15 square feet. What are the dimensions of the poster?

Answers

The dimensions to the poster is 3’x5’

Highest common factor of 32,48,72

Answers

Answer:

8

Step-by-step explanation:

32 = 2 x 2 x 2 x 2 x 2

48 = 2 x 2 x 2 x 2 x 3

72 = 2 x 2 x 2 x 3 x 3

HCF ( 32, 48, 72 )

= 2 x 2 x 2

= 8

The correct answer is 8

OMG I NEED HELP BADLY RN

In which quadrant does the point (-2 , -2) lie?

A.
Quadrant I

B.
Quadrant II

C.
Quadrant IV

D.
Quadrant III

Answers

Answer:

D) Quadrant 3

Step-by-step explanation:

Hope this helps! Pls give brainliest!

Answer:

D.

Quadrant III

Step-by-step explanation:

Quadrant III= Both co-ordinates negative.

Rhombus PQRS with vertices P(-1,-3), Q(3,-4), R(4,-8) and S(0,-7)

A)Translation along the vector (4,10)
B) 90 (degrees) counterclockwise rotation about the origin.

Answers

A) Translation will slide all the points using the vector - add the vector to each point...
P’(3, 7), Q’(7, 6), R’(8, 2), S’(4, 3)

B) Rotation is tricky. 90 degrees will swap x with y and counterclockwise will reverse the sign of the new x
P’(-7, 3), Q’(-6, 7), R’(-2, 8), S’(-3, 4)

A clockwise rotation would swap the values and reverse the sign of the new y values
Half turn rotation would just reverse the values of all the coordinates
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