Mathematics High School

2 of 5
The ratio of boys to girls in a class is 3:5. There are 40 students in the class. How many
students are girls?

Answers

Answer 1

Answer: 16 of the students are girls.

Step-by-step explanation:

3/5 = boys —> 60% of students.

2/5 = girls —> 40% of students.

40% = 0.4

G = 40 * 0.4

G = 16

Answer 2
Given,
Ratio of boys to girls = 3:5
Let the number of boys = 3x
Let the number of girls = 5x
Also given, total number of students in class = 40
So, 3x +5x = 40
8x = 40
x = 40/8
x = 5
Therefore, number of girls in the class = 5(5) = 25
Number of boys in the class = 3(5) = 15

Related Questions

next guestion why does math even exist!!!!

Answers

Answer:

B.

Step-by-step explanation:

I know this because I asked my Math teacher.

Someone please help me with this question I'm struggling

Answers

ExplanationSolve for x-term when g(x) = 5. Substitute g(x) = 5 in the equation.

[tex]g(x) = - 2x + 1 \\ 5 = - 2x + 1[/tex]

Solve for the x-term.

[tex]2x = - 5 + 1 \\ 2x = - 4 \\ x = \frac{ - 4}{2} \\ x = \frac{ \cancel{ - 4} \: \: \: - 2}{ \cancel{2} \: \: \: 1} \Longrightarrow \: \frac{ - 2}{1} \\ x = - 2[/tex]

Answer Check

Substitute x = -2 in the equation.

[tex]5 = - 2( - 2) + 1 \\ 5 = 4 + 1 \\ 5 = 5[/tex]

The equation is true. Therefore x = -2 is the answer.

Answer

x = -2

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
Use the information given to correctly complete the sentence.
A scientist observes that a zebra ran 54 yards in 135 seconds.

The zebra ran at a rate of
feet per minute.

Answers

Answer:

135 seconds = 54 yards

1sec = 54/135 yards

60 sec = 54/135 * 60

1 minute = 24 yards

hope it helps you jamie

pls help with this question

Answers

Answer:

2.01, 2, 2.1, 5, 7, 2.001, 3, 10

Step-by-step explanation:

That is a less greater than or equal to symbol, therefore the answer is any number that is 2, or greater than 2

Solve the system of linear equations. show your work. - 3x + 5y = 13 x + 4y = -10​

Answers

Answer:

16x-y=0

Step-by-step explanation:

Hey Please help i’m taking a test . i will mark you brainlist. thanks

Answers

Answer:

x=56

Step-by-step explanation:

72+89+99+3x+2x=540

Which number represents 50% of 74?
A. 35
B. 37
C. 38
D. 39

Answers

Answer:

37

Step-by-step explanation:

50% of 74 is 74/2

Let u = , v = . Find 4u - 3v. (2 points)

Answers

Answer:

4,-3.. that is the answer for the question

Answer:

what is u and v?

Step-by-step explanation:

One week, Eva earned $126.00 at her job when she worked for 6 hours. If she is paid the same hourly wage, how much would she make the next week if she worked 22 hours?

Answers

Answer:

Step-by-step explanation:

$120 ÷ 10 hours = $20 per hour wage

Next week when she works 22 hours:

  hourly wage * hours worked = earnings

  $20 * 22 = ?

Answer:

462

Step-by-step explanation:

the segment JK is bisected, find the length of JK.

Answers

Answer:

JK=80

Step-by-step explanation:

7x+ 5= 8x

5= 8x-7x

5=x

x=5

8×5=40

40×2=80

Hope this helps!

Please mark me brainliest if possible. :)

Find the midpoint of ABif A(-3, 8) and
B(-7,-6).

Answers

The coordinates of the midpoint are (-5,1)

HELP ME GET AN A!!
Find an equation for each line:

Line ℓ: y =
Line m: y =
Line n: y =
Line p: x =

If you helped, thank you so much, you are an amazing person <3

Answers

Line P: x = -4

Line n: y = x -1

Line m: y= -2x + 4

Line l: x = 4

No problem =)

The equation of the lines are,
Line ℓ: y = 4

Line m: y = -2x + 4

Line n: y = x - 1

Line p: x = -4

What is a line?

A line is a straight curve connecting two points or more showing the shortest distance between the initial and final points.

Here,
From the map,
Locate at least 1 point in every line to define the equation of line,
Consider line l,
Now, on the y-axis line l passes through (0, 4),
Standard equation of the line,
y = mx + c,
Since the slope of the line l is zero and the y-intercept is 4, so the equation is,
y = 0(x)  + 4
y = 4

Similarly, the equation of the other line is givens,
Line m
y =  -2 + 4  (slope is -2 and y-intercept is +4)

Line n,
y = x - 1    (slope is 1 and y-intercept is -1)

Line p
x = -4   (slope is 1/0 and y-intercept is 0)

Thus, the equation of the line is shown above.

Learn more about lines here:

brainly.com/question/2696693

#SPJ2


Which of the g-values satisfy the following inequality?
7 2 12-g
Choose all answers that apply:
g=4
B
g= 5
9= 6

Answers

i think you should rewrite the question

Find the slope and y-intercept of the graph of the equation.
y= 2x + 7

Answers

slope 2
y- intercept -7

What is the solution of ?
A.

B.

C.

D.

Answers

Answer:

D. x = 12

I hope this helps!

D. X=12 this the answer

write the following statement as a mathematical expression.
let x be a number.

a number increased by five and then divided by two.

Answers

Answer:

x+5 divided by two

Step-by-step explanation:

First, we have to figure out what the words mean

INCREASED: to add

next, we write the equation out in numbers, not words

Remember: x is "a number"

x+5 divided by two

Mathematics

Solving inequality

Answers

Answer:

x _> 9 I dont have the symbol on my phone so I just put the greater than sign there

Step-by-step explanation:

1. Subtract 3 from both sides

5x > 48 - 3

2. simplofy 48 - 3 to 45

5x > 45

3. Divide both sides by 5

x > 45/5

4. Then simplify 45/5 to 9 which gives us the answer

And again I dont have the sign thats why I used the greater than sign

Which graph represents solutions of the equation y = x + 2?
A
B
C

Answers

Answer:

Which ever graph has points in a line going down by 1,1 and has a y-intercept of 2

Step-by-step explanation:

That's the best answer I can give without a photo :(

(hope this helps!)

Answer:

Step-by-step explanation: Graf the line useing the slope and y-intercept, or two points.

Slop 1: 1

y-intercept:(0,2)

x         y

----------------

-2        0

2         2

Write
71/25

as a decimal.

Answers

Answer:

Step-by-step explanation:

71/25=2.84

Hope this helps x

Answer:

2.84

Step-by-step explanation:

71 ÷ 25 = 2.84

Please answer I will give a good review:)​

Answers

Answer:

18

Step-by-step explanation:

(8+6x6)= 44

44/11=4

7x2=14

14+4=18

hope this helped

Answer:

18

Step-by-step explanation:

2. What is the fraction of the following decimal? (simplify) * 10 points 0.8 8 4 100 25 A B 4​

Answers

Answer:

Its a

Step-by-step explanation:

i did this brainly pls

Really easy just not for me

Answers

Answer: 1 time

5 x 1 = 5

Answer:

1 time

Step-by-step explanation:

5×1=2 sjsjjwsjhfjekkebhskdjsjzkdbjshs

Please please help ASAP, question is order from largest at the top and smallest at the bottom:

1. 10hm
2. 100cm
3. .001mm
4. .01km

Answers

Answer:

2. 1. 3. 4.

Step-by-step explanation:

hope this help >.<

A team of 9 tennis players can order bags with their uniforms

Answers

Answer:

C

Step-by-step explanation:

Which only lists multiples of 18?
BRH
1, 2, 3, 4, 6, 9, 18
1, 2, 3, 6, 9, 18
18, 27, 36, 45
18, 36, 54, 72

Answers

Answer:

the last one 18,36,54,72

The last option because 18 can be multiplied by various numbers to get all four of those options

I need help in math,PLEASE Help!!!. -50=10s

Answers

Answer:

s= -5

Step-by-step explanation:

-50=10s

divide both by 10

-5=s

what is the median of the following set of data?​

Answers

Answer:

9.3

Step-by-step explanation:

Put them in order:

4.7

5.6

6.2

7.4

7.9

8.4

10.2

10.6

11.2

13.1

15.4

15.5

Find the middle number:

Since there are 12 numbers, you will have 2 middle numbers which will be the 6th and 7th number: 8.4 and 10.2

Add them together:

8.4 + 10.2 = 18.6

18.6/2 = 9.3

Under his cell phone plan, Ayden pays a flat cost of $49.50 per month and $4 per gigabyte. He wants to keep his bill at $56.30 per month. Which equation could be used to determine g g, the number of gigabytes of data Ayden can use while staying within his budget?

Answers

Answer:

49.5+4g=56.3

Step-by-step explanation:

Im doing it on DelatMath

4.
Given: D is the midpoint of BC
<1 = <2
Prove: ABAC is isosceles
E
ת
2.
B.

Answers

it’s E because when you mutilply you get E

2y + 2x + 3y + 4z + 5x​

Answers

5y+7x+4z this is the simplified answer .
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