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:

25

Step-by-step explanation:

40/8 = 5

3:5 so u do 5x5 which is 25

brief explanation and hoped it helped xoxo

Answer 2

Answer:

25 girls

Step-by-step explanation:

boys: girls: total

3           5       8

Take the total number of students and divide by 8

40/8 = 5

Multiply each term by 5

boys: girls: total

3*5     5*5    8*5

15         25     40

There are 25 girls


Related Questions

Write a sequence with five terms with a third term is six

Answers

Answer:

2, 4, 6, 8, 10

Step-by-step explanation:

This is a sequence that answers the question. Hope it helped

8 waffle makers cost $200. If the waffle makers all cost the same amount, how much does each waffle maker cost?

Answers

Answer:

$25

Step-by-step explanation:

divide 200 by 8 to get the unit rate, or what a single waffle maker costs.

Answer:

Each waffle maker is $25.

Step-by-step explanation:

First set up an equation here mine would be:

200=8c (c being cost)

Next get c alone, so divide each side by 8. That gives you:

c=200/8

Simplify.

c=25

So the cost of each waffle maker is $25.

What is 1/2n to the three place value
A. 1.571
B. 1.570
C. 6.284

Answers

Answer:

b

Step-by-step explanation:

Steve is paid overtime for all time worked past 40 hours in a week. His regular-time pay rate is $12 an hour, and his overtime pay rate is $18 an hour. Last week Steve worked 47.3 hours. 1. How many regular-time hours did Steve work? 2. How many overtime hours did he work last week? 3. What was Steve's regular-time pay last week? 4. What was Steve's gross or total pay last week?

Answers

Answer:1. 40 hours  2).7.3 hours, 3).$480 4).$611.4

Step-by-step explanation:

STEP 1

stating all requirements

regular hour = 40 hours  at $12  an hour

overtime = beyond  40 hours at $18 an hour

Step 2--- Solving out

1. Steve worked 40 regular time hours

2. Over time hours =Total 47.3 hours - 40 regular time hours = 7.3 hours

3. Regular time pay = Regular tmes hours x regular time pay rate

= 40 x $12 =$480

4) Steve gross pay = Regular time pay + overtime pay

                              = $480 + ( 7.3 hours x $18)

                              =$480+$131.4

                              =$611.4

The table shows what time the sunrise and
sunset occurred on dates in October. Based
on the data, what is the total number of
minutes of daylight recorded across these
dates?

Answers

Answer:

There are 2,802 minutes of daylight recorded across these dates.

Step-by-step explanation:

Elapsed Time

Elapsed time is the amount of time that passes from the start of an event to its finish.

We have to recall 1 hour has 60 minutes. Another useful fact is that from a specific time AM to the same time PM there are 12 hours or 720 minutes.

Let's find the minutes of daylight recorded day by day.

Oct, 4th:

From 7:26 am to 7:26 pm there are 720 minutes. Since the sunset time is 13 minutes less, the minutes of daylight are 720 - 13 = 707 minutes.

Oct, 6th:

From 7:27 am to 7:27 pm there are 720 minutes. Since the sunset time is 18 minutes less, the minutes of daylight are 720 - 18 = 702 minutes.

Oct, 8th:

From 7:28 am to 7:28 pm there are 720 minutes. Since the sunset time is 21 minutes less, the minutes of daylight are 720 - 21 = 699 minutes.

Oct, 10th:

From 7:30 am to 7:30 pm there are 720 minutes. Since the sunset time is 26 minutes less, the minutes of daylight are 720 - 26 = 694 minutes.

The total minutes of daylight is 707 + 702 + 699 + 694 = 2,802 minutes

There are 2,802 minutes of daylight recorded across these dates.

Founder's Park is planning to add a slide. The scaled model gives the reduced measures. A slide has a width of 3.5 inches and height of 3 inches. The park has space for the base of the slide to be 7-feet wide. To keep the slide proportional to the model, what will the height of the slide be? The slide will have a height of feet.

Answers

Answer: The slide will have a height of 6 feet.

Step-by-step explanation:

Given: A slide has a width of 3.5 inches and height of 3 inches.

For required slide , width = 7 feet]

To keep the slide proportional to the model,

[tex]\dfrac{\text{height of the required slide}}{\text{height of the slide }}=\dfrac{\text{width of required slide}}{\text{width of slide}}[/tex]

[tex]\Rightarrow\ \dfrac{\text{height of the required slide}}{3}=\dfrac{7}{3.5}\\\\\Rightarrow\ \dfrac{\text{height of the required slide}}{3}=2\\\\\Rightarrow\ \text{height of the required slide}=3\times2 =6\ \text{feet}[/tex]

hence, the slide will have a height of 6 feet.

Answer:

The slide will have a height of 6  feet.

Step-by-step explanation:

i got it right

F(x) = x^2 and g(x) = 2x-3 What is the value of g(4) + f(-3)?

Answers

Answer: 66

Step-by-step explanation:see attachment.

If this helps you please rate brainest

HELP PLEASE! I WILL MAKE BRAINLIST

Answers

Answer:

true

Step-by-step explanation:

Answer:

Step-by-step explanation:

the answear is true because it is strait line and also it equales (y=x+2)

Please help me out with this..

Answers

-3x+3. the reasoning is because when you find slope for a negative slope you go by rise over run but since this is negative you go down. You go down three times and go to the left once and you hit the second point so your slope is -3x because it’s negative slope and -3/1 is -3 (y=mx+b). Then your y intercept is 3 on the graph.

Answer:

y=-3x+3

Step-by-step explanation:

The equation you want to use is y=mx+b. First you want to find m, the slope, but since the slope of 3 is given in all of the answers, you just want to determine if the line is negative or positive. This line is going negative because it approaches the x axis, and crosses it in the negative direction. Now we know the slope is -3x all that's left to do is to find the y intercept represented in the equation y=mx+b as +b. The point where the line crosses the y axis is positive 3, so the final equation is y=-3x+3.

The solution to 9(x + 2) = 5 - 2(x - 1) is

Answers

Answer:

x = -1

Step-by-step explanation:

9(x + 2) = 5 - 2(x - 1)

9x + 18 = 5 -2x + 2

9x + 18 = -2x + 7

Add 2x and 9x. Subtract 18 from 7.

11x = -11

x = -1

Please mark me the brainliest!?!

What is the range of the given function?
{(-2, 0), 6-4, -3), (2, -9), (0, 5), (-5, 7)}

Answers

It would be the Ys in the points, the second numbers: 0,-3,-9,5,7

HELP PLEASE math isn’t really my thing at it’s due an hour

Answers

(-3,-2) is the answer

(-3,-2) hope this helps !!!!

Ming works at a travel agency. Her base monthly salary is $1,750 plus 8% commission on her total sales for the year. Last year Ming sold $478,500 of travel. How much did ming earn, including commission, last year?​

Answers

Answer:

59,280

Step-by-step explanation:

$1750x12months=$21,000 base sal.

478,500x.08=38,280 commiss.

21,000+38,280=59280

The math operator's symbol has predetermined rules that must be applied to the supplied operands or numbers.

Ming earn, including commission, last year exists 59280.

What is meant by mathematical operation?

Calculating a value using operands and a math operator is referred to as performing a mathematical "operation." The math operator's symbol has predetermined rules that must be applied to the supplied operands or numbers. In mathematics, addition, subtraction, multiplication, division, and modular forms are the five basic operations.

Calculations in mathematics are done using arithmetic operators. A property or variable can be given a value using assignment operators. Text, dates, systems, times, and numeric assignment operators are all possible.

Given: Her annual sales commission is 8% of her base monthly salary, which is $1,750. Ming made $478,500 in travel sales last year.

From the given information, we get

$21,000 base salary = $1750 × 12 months.

478,500 × 0.08 = 38,280 commissions.

simplifying the above equation, we get

21,000 + 38,280 = 59280

Therefore, Ming earn, including commission, last year exists 59280.

To learn more about commission refer to:

brainly.com/question/957886

#SPJ2

What type of graph is best to use to compare two sets of data over time?

Answers

Answer:

Line graphs.

Step-by-step explanation:

If you have two sets of data, the easiest graph to use would be a line graph. You can insert information and tell which line represents each category. Line graphs are also specifically used to compare data that changes over time.

I hope this helped you out!! Have a nice day :3

Answer:

line graphs

Step-by-step explanation:

i got 100

A Boy Scout troop is selling Christmas trees at a local tree lot in the morning they sold 11 Douglas fir trees and nine noble fir trees turning a total of $1006 in the afternoon they sold 14 Douglas fir trees and nine noble fir trees turning a total of $1111 how much do the Douglasfir trees cost

Answers

Answer:

$35

Step-by-step explanation:

Let x represent the price of Douglas fir trees and y represent the noble fir trees

11x + 9y= 1006........equation 1

14x + 9y= 1111.........equation 2

Multiply equation 1 by 14 and equation 2 by 11

154x + 126y= 14,084

-

154x + 99 y= 12,221

27y= 1863

Divide both sides by the coefficient of y which is 27

27y/27 = 1863/27

y= 69

Substitute 69 for y in equation 1

11x + 9y= 1006

11x + 9(69) = 1006

11x + 621= 1006

11x = 1006 -621

11x = 385

x = 385/11

x = 35

Hence the Douglas fir free costs $35

Please help I’ll mark brainliest

Answers

Answer:
y-intercept is -3
Slope is -1
The equation is y= -1x - 3

Pleaseee helpppppp
————————————————-


Answers

I think it would be b because my teacher told me it was b

Answer:

i'm pretty sure s the second one. that answer just makes the most sense to me

Step-by-step explanation:

Find the 22nd term of the arithmetic sequence whose common difference is d=2 and first term is a1 = -25

Answers

Answer:

17

Step-by-step explanation:

an=a1+(n-1)d

a22=-25+21(2)

a22=17

Answer:

Hello

a=-25

d=2

a22=a+(n-1)d

     =-25+(22-1)2

     =-25+(21)2

     =-25+42

     =17

Step-by-step explanation:

complete the multiplication problem to find the answer 36.1 times 1.1

Answers

Answer:

39.71

Step-by-step explanation

1 x 36.1 = 36.1, 3.61 + 36.1 = 39.71.

36.1 times 1.1 = 39.71

hope this helps!! <3

3.
Ms. Bringas went to staples to buy hand sanitizer. They were $1 each. She
purchased 24 bottles. She got a teacher discount of 10% what was her final price?
Original Cost:
Discount:
New Price:

Answers

new price: 21.6
discount: 2.4
og cost: 24$
the answer to the new price is 21.6

find the greastest common factor of 10,30,and 45.​

Answers

The greatest common factor is 5 because they greatest number they can all be divided by is 5!

10/5 = 2
30/5 = 6
45/5 = 9
Answer:  5

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

Explanation:

Find the prime factorization of each value. A factor tree may help.

10 = 2*5

30 = 2*3*5

45 = 3*3*5

We see that '5' is found in each of the factorizations. This is the only factor that shows up in all three values, and it only shows up one time. So that's why 5 is the GCF.

solve the following equasion -9 = r/4
a. r = 36
b. r = 13
c. r = 9/4
b. r = -36​

Answers

Answer:

r=-36

Step-by-step explanation:

An engineer is designing a runway for an airport. Several planes will use the runway and the engineer must design it so that it is long enough for the largest planes to become airborne before the runway ends. If the largest place accelerates at 3.30 m/s^2 and has a takeoff speed of 88.0 m/s then what is the minimum allowed length for the runway?

Answers

Answer:

d=117.33 m

Step-by-step explanation:

Initial velocity of planes, u = 0 (because they are at rest)

Acceleration, a = 3.3 m/s²

Final take off speed, v = 88 m/s

We need to find the minimum allowed length for the runway. Let it is d. d will be the distance. It can be calculated using third equation of motion as follows :

[tex]v^2-u^2=2ad\\\\d=\dfrac{v^2-u^2}{2a}[/tex]

Putting all the values, we get :

[tex]d=\dfrac{88^2-0^2}{2\times 33}\\\\d=117.34\ m[/tex]

Hence, the minimum allowed length for the runway is 117.33 m.

Which point results when the point (−100, −100) is rotated 180° around the point (100, 100)? A) (200, 200) B) (300, 300) C) (−200, −200) D) (−300, −300) E) None of these.

Answers

Answer:

answer: A

Step-by-step explanation:

-100 -100, rotated by 180 would be the opposite, 100 100

Answer:

A

Step-by-step explanation:

Give an example of a balance that has a greater integer value than a balance of -$12, but represents a debt of less than $5.

Answers

Answer:

An example of a balance that has a greater integer value than a balance of -$12, but represents a debt of less than $5 is any integer belongs to [-6,-11]

Step-by-step explanation:

Let x be the balance that has a greater integer value than a balance of -$12, but represents a debt of less than $5.

We are given that a balance that has a greater integer value than a balance of -$12

So, x>-12

We are given that balance represents a debt of less than $5.

Debt = -5

So, x< -5

So, -5>x>-12

So, x∈[-6,-11]

Hence an example of a balance that has a greater integer value than a balance of -$12, but represents a debt of less than $5 is any integer belongs to [-6,-11]

Carly jogged 1/2 mile in 1/10 of an hour. At this rate, how long does she jog in one mile?

Answers

Answer:

2/10 of an hour for 1 mile

Step-by-step explanation:

1/2 for 1/10 since its half all you have to do is multiply by 2 then you got 2/2 and 2/10

Hope this helped!

Which relation is a function?

Answers

Answer:

b

Step-by-step explanation:

please help!! will mark as brainliest!

Presley has to clean her 40-gallon fish tank. Her first step is to drain the tank. Using a hose and a
siphon, she finds that she can drain 16 gallons of water per hour.
Presley writes the equation 40 - 16x = 0, where x is the number of hours, to determine how many
hours it will take to drain the tank.
The next step Presley wrote to solve the equation is shown here:
40 = 16x
Which property did she use to get to this step?

a.) addition property of equality
b.) multiplication property of equality
c.) distributive property of equality
d.) combining like terms

Answers

Answer: The answer is A.addition property of equality

Hope I helped

Pkease mark me as brainliest!

Please help me out!​

Answers

Answer:

x = 2/3

Step-by-step explanation:

Lets solve your equation step-by-step.

x−10=−2(x+4)

Step 1: Simplify both sides of the equation.

x−10=−2(x+4)

x+−10=(−2)(x)+(−2)(4)(Distribute)

x+−10=−2x+−8

x−10=−2x−8

Step 2: Add 2x to both sides.

x−10+2x=−2x−8+2x

3x−10=−8

Step 3: Add 10 to both sides.

3x−10+10=−8+10

3x=2

Step 4: Divide both sides by 3.

3x / 3 = 2/3

x=2/3

Find the length of the unknown side. Round your answer to the nearest whole number.

Image of a right triangle with legs labeled 5 inches each and hypotenuse unknown.

Group of answer choices

A. 7 inches

B. 10 inches

C. 25 inches

D. 50 inches

Answers

Answer:

A. 7

Step-by-step explanation:

5^2+5^2=c62

25+25=c^2

50=c^2

7=c

Answer:

A

Step-by-step explanation:

c=√a²+b²=√5²+5²≈7.07107

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