The ratio of boys to girls in a
group is 7 : 1. If there are 48 more boys
than girls, work out how many girls
there are

Answers

Answer 1

Answer:

48+x/x=7/1

48+x=7x

6x=48

x=8

no. of girls = 8

no.of boys= 48+8

= 56

The answer is 8

Answer 2

Answer:

8 girls

Step-by-step explanation:

Ratio boys to girls = 7:1

There area 48 more boys than girls

First lets make an equation

7x - 1x = 48

6x = 48

x = 8

There are 8 girls

Check:

7*x : 1*x =

56 : 8

56 - 8 = 48

Correct

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K


Related Questions

someone please help!! will reward brainliest

Answers

I think you should add 5x
You should add 7x to both sides. Since the goal is to solve for x, you don't want to make the equation equal to 0 by adding 5x. Get all the Xs to one side!

In 2017 the population of Rexburg, Idaho was 28,337 people. The population was expected to grow at a rate of about 1.26% per year. Based on these numbers, what would we predict the population of Rexburg will be in the year 2022?

(Round to the nearest whole number.)

Answers

Answer:

30,122

Step-by-step explanation:

This probably isn't the fastest way to solve but....

28,337x1.26%= 357

357x5=1785

28,337+1785=30,122

The 5 came from the # of years the population is increasing

We are required to find the population of Rexburg will be in the year 2022

The population of Rexburg will be in the year 2022 is 30,122 people

Given:

2017 population = 28,337 people

Growth rate per year = 1.26%

let

n = number of years between current and predicted

= 2022 - 2017

n = 5 years

Yearly growth rate = 28,337 × 1.26%

= 28,337 × 0.0126

= 357.0462

Predicted population in 2022 = 2017 population + (357.0462 ×5)

= 28,337 + 1,785.231

= 30,122.231

Approximately, 30,122 people in 2022.

Therefore, the population of Rexburg will be in the year 2022 is 30,122 people

Read more:

https://brainly.com/question/20396348

4.0/5.7=1.8/x what is the answer for u smart people

Answers

Answer:

here you go

Step-by-step explanation:

Answer:

2.565

Step-by-step explanation:

Hope that this helps!

20 POINTS HELP!!
Find the value of x and y

Answers

Answer:

X is 15 and Y is 40° That's the answer

A cone has a base radius of 3 cm and a slant height of 5 cm.
Find h, the perpendicular height of the cone.

Answers

Answer:

h=4

Step-by-step explanation:

5²-3²=h²

h²=16

h=4cm

Answer:

I=4 (Slant height)

R=3 (Radius)

H=5 (slant height)

Step-by-step explanation:

Imagine inclination, peprendicular height and radius as a triangle, so this will have a 90 degrees angle and Pythagor theorem will imply to the calculations, as :

[tex]a^{2}+b^{2}= c^{2}\\[/tex]

where Height is A , Radius is B, and Inclination is C we have:

[tex]3^{2} +I^{2} = 5^{2}[/tex]

from above we have:

[tex]I^{2} =25-9[/tex]

and

[tex]\sqrt{I}=\sqrt{16} =4[/tex]

Please answer this question​

Answers

Answer:

Step-by-step explanation:

With the spinner shown, the theoretical probability of landing on 2 is 0.25. Which number of spins would most likely result in a relative frequency that is closest to the theoretical probability?

Answers

just give the other kid brainiest

Step-by-step explanation:

Someone pls help me with this problem

Answers

Answer:

B.

Step-by-step explanation: it is A. not B.

Complete the function table for each equation

Answers

Answer:

y=-32, 0, -16, -4, 16

Step-by-step explanation:

y=4(-6)-8= -32

y=4(2)-8 = 0

y=4(-2)-8 = -16

y=4(1) -8 = -4

y=4(6) -8= 16

For the given equation of the line, the complete table is attached below.

Use the concept of the equation of line defined as:

A line has length but no width, making it a one-dimensional figure. A line is made up of a collection of points that can be stretched indefinitely in opposing directions. Two points in a two-dimensional plane determine it.

The given equation of a line is,

y = 4x - x

To complete the table:

Put x = -6 in this equation,

y =  (-4)(-6) - 8

y = 16

Put x = 2 in the equation,

y =  (-4)(2) - 8

y = -16

Put x = -2 in the equation,

y =  (-4)(-2) - 8

y = 0

Put x = 1 in the equation,

y =  (-4)(1) - 8

y = -12

Put x = 6 in the equation,

y =  (-4)(6) - 8

y = -32

The complete table is attached below.

To learn more about the equation of line visit:

brainly.com/question/18831322

#SPJ6

Helpppp plzzzzzzzzz !!!!!!

Answers

Answer:

the 3rd box

Step-by-step explanation:

Answer:

[tex]5^{-1}[/tex]

Step-by-step explanation:

5⁻⁴ ÷ 5³

Since they have the same base we can combine the exponents. Since we have a division sign, we add the exponents

5⁻⁴⁻³

5⁻¹

To build a computer, Tom needs to buy a motherboard for £ 120, and a CPU for
£ 100.Then find the total cost of building 10 computer ?

Answers

Answer:

£2200

Step-by-step explanation:

1 computer = £120 + £100

1 computer = £220

10 computers = £220 x 10

10 computers = £2200

Which words best fill in the blank indicate a shift in setting?

Answers

Answer:

4.upon

Step-by-step explanation:

Please help Mach the measurmeants it is 10 p

Answers

Answer:

Step-by-step explanation:

40cm—0.4m

4000mm=4m

4mm=0.4cm

4m=400cm

40km=40,000m

Can’t see the last box in the left line.

1km=1000m

1m=100cm

1cm=10mm

Help me help me help me help me… but ignore the 21.5 that was wrong

Answers

Answer:

16.2

Step-by-step explanation:

a²+b²=c²

a=10, b=y, c=19

100+y²=361

y²=361-100

y²=261

√y²=√261

y=√261

y=16.2


[tex]2 \times (2 - 6 + 3 + 64 \times 3)[/tex]
Who will get the answer first?​

Answers

Answer:

382

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Step-by-step explanation:

Step 1: Define

Identify

2 × (2 - 6 + 3 + 64 × 3)

Step 2: Evaluate

(Parenthesis) Multiply:                                                                                       2 × (2 - 6 + 3 + 192)(Parenthesis) Subtract:                                                                                     2 × (-4 + 3 + 192)(Parenthesis) Add:                                                                                            2 × (-1 + 192)(Parenthesis) Add:                                                                                            2 × 191Multiply:                                                                                                             382

i need help pls!
this test is about angles, and i am having trouble with it.

Answers

Answer:

Alternate interior

This is your answer

Answer:

alternative .....................

Which of the following is the correct point-slope equation for the line that
passes through the point (-3,-9) and is parallel to the line given by
y = 2.5x - 20?
O A. Y-3 = 2.5(x-9)
B. y + 3 = 2.5(x + 9)
O C. y + 9 = 2.5(x + 3)
O D. Y- 9 = 2.5(x-3)

Answers

The answer is A because

Kyle is buying a $220 bicycle if the bicycle is on sale for 35% off how much will he save

Answers

Answer:

$77

Step-by-step explanation:

Okay so first, we know that the bicycle is 220 dollars. So we got to  multiply that to the percent. We can't muiltiply it into the percent yet so we turn that percent into 0.35

220 * 0.35

This equals to 77. That's the answer but it's not that simple, cause we aren't finished!

So we know that 35 percent of 220 is 77 dollars. So subtract that to 220!

220 - 77

This is equal to 143. Now how much will he save? He will save 220 - 143, which is 77! That's how we know the answer! I'm sure this is correct, if itsn't please comment! Have a great day!

Answer:

$143

Step-by-step explanation you wanna see how much 35% is out of 220

35% = 0.35

220 * 0.35 = 77 = discount

Now you want to see how much it will be when the discount is applied

220-77 = 143

The bicycle is $143 when discount is applied, you save $77

I need help like right now. Im brain dead

Answers

Answer:

y-intercept: [tex](0,-\frac{5}{2} )[/tex]

x-intercept: [tex](-2,0)[/tex]

Step-by-step explanation:

Hi there!

Important things to note:

the y-intercept occurs when x=0the x-intercept occurs when y=0

1) Find the y-intercept

[tex]-5x-4y=10[/tex]

Substitute x with 0

[tex]-5(0)-4y=10\\0-4y=10\\-4y=10[/tex]

Divide both sides by -4

[tex]\frac{-4y}{-4} =\frac{10}{-4} \\y=-\frac{5}{2}[/tex]

Therefore, the y-intercept is [tex]-\frac{5}{2}[/tex]. When written in (x,y) form, x will always be 0 while y is the y-intercept:

[tex](0,-\frac{5}{2} )[/tex]

2) Find the x-intercept

[tex]-5x-4y=10[/tex]

Substitute y with 0

[tex]-5x-4(0)=10\\-5x-0=10\\-5x=10[/tex]

Divide both sides by -5

[tex]-5x=10\\\frac{-5x}{-5}= \frac{10}{-5} \\x=-2[/tex]

Therefore, the x-intercept is -2. When written in (x,y) form, x will always be the x-intercept while y is always 0:

[tex](-2,0)[/tex]

I hope this helps!

GIVING BRAINIEST!!!!!

Answers

Answer:

Clearly, the probability of drawing a heart out of the deck is 13/52, or 1/4. The probability of drawing an even number as card #2 (∈{2,4,6,8,10}) for any suit is 20/51, except when the first card drawn is an even heart, then the probability of the second draw is 19/51.

From the equation, find the axis of symmetry of the parabola. y = 3 x squared minus 12 x + 11 a. x = negative 2 c. x = 1 b. x = 2 d. x = negative 1 Please select the best answer from the choices provided A B C D

Answers

Answer:

the axis of symmetry would be: b. x=2

The equation of the axis of symmetry of the parabola will be x = 2. Then the correct option is B.

What is the equation of the parabola?

Let the point (h, k) be the vertex of the parabola and a be the leading coefficient.

Then the equation of the parabola will be given as,

y = a(x - h)² + k

The equation is given below.

y = 3x² - 12x + 11

Convert the equation into a vertex form. Then we have

y = 3x² - 12x + 11

y = 3x² - 12x + 12 - 1

y = 3(x² - 4x + 4) - 1

y = 3(x - 2)² - 1

The equation of the axis of symmetry of the parabola is given as,

x - 2 = 0

x = 2

The equation of the axis of symmetry of the parabola will be x = 2. Then the correct option is B.

More about the equation of the parabola link is given below.

https://brainly.com/question/20333425

#SPJ2

solve the inequality 3/5x +30>150

Answers

Answer:

Step-by-step explanation:

3/5x+30=150

We move all terms to the left:

3/5x+30-(150)=0

Domain of the equation: 5x!=0

x!=0/5

x!=0

x∈R

We add all the numbers together, and all the variables

3/5x-120=0

We multiply all the terms by the denominator

-120*5x+3=0

Wy multiply elements

-600x+3=0

We move all terms containing x to the left, all other terms to the right

-600x=-3

x=-3/-600

x=1/200

What percent of 80 is 20? Answer pla

Answers

Answer:

25%

Step-by-step explanation:

[tex] \frac{20}{80} = \frac{1}{4} = 0.25 = 25\%[/tex]

If you can answer this u are the best

Answers

Answer:

47

Step-by-step explanation:

if there are 100 total and 45 are girls, then there are 55 boys enrolled. since 8 are absent- 55-8=47

Which figure shows a reflection of ​pre-image QRS​ over the line t?

I need help PLSSSSS 50 points!!!

Answers

Answer:

A, because its reflecting off of the y axis

Step-by-step explanation:

I have proof links, and I took the test

Which fraction correctly represents 0.63?

A 5/12

B 7/11

C 2/3

D 9/13

Answers

Answer:

7/11

Step-by-step explanation:

take the numirater and divide by denominator

7÷11=0.6363....

Answer:

like owlowlowl said '7/11'

Write the point -slope form of the equation of the line (-2,5), slope =6

Answers

Answer:

y - 5 = 6(x + 2)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = 6 and (a, b) = (- 2, 5) , then

y - 5 = 6(x - (- 2)) , that is

y - 5 = 6(x + 2)

Please help me with this problem

ln -3x + ln 4 = ln 58​

Answers

9514 1404 393

Answer:

  x = -29/6 = -4 5/6

Step-by-step explanation:

The equation simplifies to ...

  ln(-3x·4) = ln(58)

Taking antilogs, the equation becomes ...

  (-3x)(4) = 58

Dividing by -12 shows us the value of x.

  x = -58/12

  x = -29/6 = -4 5/6

__

The applicable rule of logarithms is ...

  ln(ab) = ln(a) +ln(b)

Answer:

7x - 4x = 21

3x = 21

x = 21÷3

x = 7

Solve the system of equations.

{y=30x+10y=5x2−25

I need major help!!! Please!!!!

Answers

It should be (X,Y)=(15/8,-25/4)

SOMEONE HELP PLZ!! just need to know what the domain and range is!

Answers

Answer:

C.

Step-by-step explanation:

The Domain is 1,2,3,4,5,6 because the line passes through there. The y-intercept is 1,2,3,4,5,6,7 because that is where it passes through.

If this helps please mark as brainliest

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