The ratio of boys to girls in Mr. Johnson’s class is 3:5. If there are 32 students in his class, how many of these students are girls? Write equation and solve.

Answers

Answer 1

Answer:

12:20

Step-by-step explanation:

3 : 5 = 3x : 5x = 32

3x + 5x = 8x = 32

x = 32/8 = 4

3x = 3x4 = 12

5x = 5x4 = 20

so there are 12 boys and 20 girls

Answer 2
There are 20 girls in the class.
There are 12 boys in the class.
32/8 = 4
3 x 4 = 12
5 x 4 = 20
12 + 20 = 32

Related Questions

The height of a cylinder can is 4 7/16 inches the radius is 3 inches which measurement is closet to the total surface area of the can in square inches

Answers

Answer:111.919 square inches

Step-by-step explanation:

Water bottles are sold in cases of 24. Select the expressions that can represent the total number of water bottles in c cases

Answers

Answer:

Step-by-step explanation:

24 X c,

24 ÷ c,

24 + c,

24 - c,

24c

i need help with this

Answers

Answer:

D

Step-by-step explanation:

Multiply everything on the bottom by -2 and then they are the same so infinite answers

Whats The Answer Marking Brainliest, Explain your answer:D

Answers

Answer:

C

Step-by-step explanation:

"per cent" means out of hundred, so it's 70 out of hundred.

You are saving to buy a new skateboard; so far you have saved $65.
The skateboard costs $190.
You earn $5 per hour at your job.
Write an inequality that represents the possible number of a hours you need to work to buy the
skateboard?

Answers

Answer:

25 hours

Step-by-step explanation:

190-65= 125 divided by 5 would give u 25 hours

hope it helps

I don’t understand this at all

Answers

Answer:

I think the answer is - 2 + ( 3/4) =2 3/4

Step-by-step explanation:

first of all we can take out the =-1 1/4 and - 1 3/4 email it's not it the correct place also  - 2 1/4 because of the 1/4

PLZ HELP I AM TIMED!!!!! FIRST PERSON GETS BRANLIEST!!!!!!!
Parallel lines s and t are cut by a transversal r.



Which angles are corresponding angles?
Angle3 and Angle7
Angle1 and Angle7
Angle4 and Angle6
Angle1 and Angle8

Answers

Answer:

[tex]angle \: 3 \: and \: angle \: 7[/tex]

Step-by-step explanation:

[tex]pls \: mark \: as \: brainliest[/tex]

[tex]hope \: helps[/tex]

Answer:

answer is A

Step-by-step explanation:

Maths Homework - 10A1 - Due 02/12
Return to Assigned Work
Overview
2
8
10
11 12
Question Progress
314 Marks
Homework Progress
31142 Marks
وأسأل
a) Complete the table of values for y = 3x - 1
c)
Х
-2
0
1
1
2
3
6
4
Submit Answer
y
-7
-4
-1
2
5
8
b) Draw the graph of y = 3x - 1
on the grid.
NP
NO
c) Use the graph to estimate the
value of y when x = 2.5
+​

Answers

Answer:

The answer is below

Step-by-step explanation:

a) To complete the table of values for y = 3x - 1, we substitute the value of x into the equation and find y.

For x = -2, y = 3(-2) - 1 = -7; For x = -1, y = 3(-1) - 1 = -4

For x = 0, y = 3(0) - 1 = -1;    For x = 1, y = 3(1) - 1 = 2

For x = 2, y = 3(2) - 1 = 5;    For x = 3, y = 3(3) - 1 = 8

x:    -2      -1        0        1         2       3

y:    -7      -4       -1        2         5      8

b) The graph is drawn using geogebra online graphing calculator.

c) From the graph, When x = 2.5, y = 6.5

PLEASE HELP THIS IS URGENT

Answers

I think the answer is y=3

Shirabi spent $208 on a sewing machine to make purses. She spends a total of $10 on thread, fabric, and accessories for each purse and plans to charge $36 for each purse. The equation represents her break-even point, when x represents the number of purses sold.

208 + 10x = 36x

How many purses must she sell in order to break even?

Answers

Answer:

8

Step-by-step explanation:

You want to isolate x so that you can solve for it based on the value you have.

This gives you 26x=208. 208/26 equals 8

Answer:

D) 8

Step-by-step explanation:

edge2020

someone help please

Answers

Answer:

The slope of the line segment CD = 9

Hence, option 'D' is true.

Step-by-step explanation:

Given that the slope of line segment = 9

We know that two triangles would be similar if their corresponding angles are congruent and the corresponding sides are in proportion.

Given that the line segments AB and CD are both parts of the same non-vertical line. It means their slopes must be the same.

Thus, the slope of the line segment CD = 9

Hence, option 'D' is true.

Find the time it will take to drain a 2000 mL IV bag if 131 mL drained in 7 minutes. Round to the nearest minute.

Answers

The time it will take for 2000 mL to drain is 107 minutes.

How to find the time the liquid will drain?

The time it took to drain 131 mL is 7 minutes.

We have to find the time it took to drain 2000 mL.

131 millilitres drained in 7 minutes.

This means for every 7 minutes, 131 millilitres of liquid drains out.

Therefore, the time it will take for 2000 millimetres of liquid to drain can be calculated as follows:

131 mL = 7 minutes

2000 mL = ?

cross multiply

time for 2000 mL to drain = 2000 × 7 / 131

time for 2000 mL to drain = 14000 / 131

time for 2000 mL to drain = 106.870229008

time for 2000 mL to drain = 107 minutes

We have to round to the nearest minutes.

Therefore, the time it will take for 2000 mL to drain is 107 minutes.

learn more on time in minutes here:  https://brainly.com/question/15586257

#SPJ1

consider a difference of​ 20% between two values of a standard deviation to be significant. how does this computed value compare with the given standard​ deviation, ​?

Answers

According to the given statement:

The computed value is significantly less than the given value.

The correct option is B.

What is standard deviation?

The standard deviation serves as an indicator of how much a set of values can vary or be dispersed. The values are typically close to the set's mean when the standard deviation is low, while the values are dispersed over a wider range when the standard deviation is high.

According to the given information:

The  computed value, 14.5

The  standard deviation, 11.1

finding the difference :

Percentage = (14.5 - 11.1)/11.1 * 100 = 30.6%

the value  is greater than 20%. ,

so,

In comparison to the given value, the computed value is significantly lower.

To know more about standard​ deviation visit:

https://brainly.com/question/14747159

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I understand that the question you are looking for is:

Consider a difference of 20% between two values of a standard deviation to be significant. How does the computed value, 14.5, compare with the given standard deviation, 11.1?

A) The computed value is significantly greater than the given value

B) The computed value is significantly less than the given value

C) The computed value is not significantly different from the given value

You are currently paid 30 an hour at national. Unfortunately, your boss tells you that your payment will decrease by 20 percent. After that deduction, how much will you be making per hour?

Answers

Answer:

24 per hour

Step-by-step explanation:

20% of 30 is 6 { 30 x .2 }

30 - 6 = 24

Answer:

24

Step-by-step explanation:

(100-20)*30

80*30

2400/100

24

Here is an inequality on a number line.

Answers

the answer should be b
The answer is B just did it

What's the inverse of -3? answer asap!!

Answers

Answer:

3

Step-by-step explanation:

3

The answer is 3 because it is the opposite of negative 3

Select the correct answer.
Which term has a degree of 8?
O A. 9xy8
B.
8y
O c. -2.7375
OD. 3x2y4
Algebra 2

Answers

Answer:

i think it might be the letter D

HELP ME PLEASE! ASAP

Answers

the answer C

the vertical distance after when D=2

is T

B after she had walked t kilometers along the trail ,Erica’s vertical distance from the top of the valley was equal 2 to km

what is the slope of (4,2) and (7,6.5)?

Answers

Answer

(4,2)(7, 6.5)

slope=y2-y1/ x2-x1

x1=4

y1=2

x2=7

y2=6.5

6.5-2/7-4

4.5/3

divide 4.5 and 3

=1.5

slope= 1.5

Translate twice a number plus 10 is 16
0 1+2+10=16
O 2n + 10-16
2n + 10 = 16
0 + 2 = 16-10,

Answers

b 2n+10=16 .........

568⁄1000 simplified......

Answers

Answer:

71/125

Step-by-step explanation:

The perimeter of the rectangle below is 54 units. What is the value of x?

Answers

Answer:

x has a value of 14.

Step-by-step explanation:

In addition to the information provided in the question, we are also told that the rectangle has a length x+1 and a width x-4.  This is all we need to know.

To work this out, we simply need to plug those numbers into the equation for the perimeter of a rectangle.  That would be p = 2l + 2w, where p is perimeter, l is length, and w is width.

We know that the resulting area (p) is equal to 54 units.  We are also given variable values for the length and width.  With that we can simply plug them into that equation and solve it for x:

[tex]p = 2l + 2w[/tex]

[tex]54 = 2(x + 1) + 2(x - 4)[/tex]

[tex]54 = 2x + 2 + 2x - 4[/tex]

[tex]54 = 4x - 2[/tex]

[tex]56 = 4x[/tex]

[tex]x = 56 / 4[/tex]

[tex]x = 14[/tex]

identify the slope of a line with run -16 and rise 4

Answers

Answer:

The slope is  

11 − 2  or  − 5.5 .

Step-by-step explanation:

To find the slope given two points, we use the formula  

rise

run

, or  

y

2

y

1

x

2

x

1

.

Plug in the given points into the formula:

5

(

6

)

4

6

=

11

2

Therefore, the slope is  

11

2

or  

5.5

.

Hope this helps!

Kepler spent 1/5 of his savings, and Carl spend 5/9 of his savings. If they both started with the same amount of money in their savings accounts, which of the following shows the best method to find a good estimate of how much more Carl spent than Kepler?

Answers

Answer:

B

Step-by-step explanation:

(PLEASE ANSWER QUICK!) solve this problem

Answers

Answer: 30

Step-by-step explanation: PEMDAS

Answer:

30

Step-by-step explanation:

pemdas:

10 / (3+2) * 4 + 5^2 + 6 - 9

= (10 / 5)*4 + (25) - 3

= 8 + 22

= 30

-13=r/9+8
I suck at maths so if anyone could help with this problem it will help thank you!

Answers

Answer:

r = -189

Step-by-step explanation:

Let's make it easy,

-13=r/9+8

r/9 = -13-8

r/9 = -21

r = -21 × 9

r = -189

17). If 6 apples cost $6.54.
How much does one apple
cost at the same rate?

Answers

Answer:

$1.09

Step-by-step explanation:

6 apples = 6.54

1 = ?

6.54/6

= $1.09

Answer:

$1.09

Step-by-step explanation:

6.54/6=1.09

1.09 is the cost of one apple

The snow is now 22 inches deep. If this was a 70% decrease, what was the initial depth?

Answers

If snow is 22 inches deep and was 70% dwarves than the depth would be 6.6

Helpppppp!

The locations of E' and F' are E' (−8, 0) and F' (0, 4), and lines g and g' are parallel.
The locations of E' and F' are E' (−4, 0) and F' (0, 2), and lines g and g' are the same line.
The locations of E' and F' are E' (−2, 0) and F' (0, 1), and lines g and g' intersect at point F.
The locations of E' and F' are E' (−1, 0) and F' (0, 0), and lines g and g' are not related.

Answers

Answe The locations of E' and F' are E' (−8, 0) and F' (0, 4), and lines g and g' intersect at point F.

The locations of E' and F' are E' (−4, 0) and F' (0, 2), and lines g and g' are the same line.

The locations of E' and F' are E' (−2, 0) and F' (0, 1), and lines g and g' are parallel.

The locations of E' and F' are E' (−1, 0) and F' (0, 0), and lines g and g' are not related.

are your answer options I went with..  The locations of E' and F' are E' (−2, 0) and F' (0, 1), and lines g and g' are parallel.

Step-by-step explanation:

if (a+1/a) =4, find the value of (a cube +1/a cube)​

Answers

Answer:

a=2+√3 or a=2−√3

Step-by-step explanation:

Multiply all terms by a and cancel:

aa+1=4a                         ∴ (Simplify both sides of the equation)

a2+1−4a=4a−4a            ∴ (Subtract 4a from both sides)

a2−4a+1=0

For this equation:  a=1,  b=-4,  c=1

1a2+−4a+1=0

a = −b ±  √b2 − 4ac2a divided by 2a    ⇒(Use quadratic formula with a=1, b=-4, c=1)

−(−4) ± √(−4) 2−4 (1) (1) /2 (1)

a=4±√12/2

a=2+√3 or a=2−√3

a=2+√3 or a=2−√3

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