If there are 10 boys to 7girls, how many boys are there when there are 21 girls?​

Answers

Answer 1
30 I hope this helps!!
Answer 2

Answer:

30 boys

Step-by-step explanation:

10 boys to 7 girls= 10:7

Blank boys :21 girls

7x3=21

10x3=30

Blank=30

30 boys : 21 girls


Related Questions

What is the y-intercept of y = 3 – 4x? Choose 1 answer: (-4,0) (3.0) (0.-4) (0.3)​

Answers

Answer:

it is (3.0)

Step-by-step explanation:

because the 3 is the second number without an variable

HELP ME PLZ AND IF YOU HELP ME 10 POINTS

Answers

Answer:

3(c+4)

Step-by-step explanation:

It would usually be 3 x 4, but since there is a variable, it can`t be multiplied (unless you know what the value of the variable is). Thus the expression is 3(c+4).

3 (c+4) hope this helpss

Find the following area of this trapezoid.​

Answers

Answer:

its c 98

Step-by-step explanation:

multiply hight by width so 14x7 and thats 98 but idrk

Solve the following inequality for m. Write your answer in simplest form. - 7 + 5(9m – 7) < 9m - 2 - 9 m < - 2 Submit Answer atte​

Answers

Answer:

m < [tex]\frac{36}{31}[/tex]

Rearrange:

Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :

               -7+5*(9*m-7)-(9*m-2-9)<0  

Step by step solution :

STEP  1

:

Equation at the end of step 1

 (-7 +  5 • (9m - 7)) -  (9m - 11)  < 0  

STEP  2

:

Equation at the end of step 2

 36m - 31  < 0  

STEP  3:

3.1    Divide both sides by  36  

     m-(31/36)  < 0

Solve Basic Inequality :

3.2      Add  31/36  to both sides

            m < [tex]\frac{31}{36}[/tex]

plz help me 25y−4+7−910y =

Answers

Answer:

-885y+3

Step-by-step explanation:

Yes i agree i also got -885y+3

Eve is organizing a race to raise money for a local children's hospital. She makes $20 for each 5K participant and $45 for each 10K participant. Her goal is to raise $9,500.If x represents the number of participants in the 5K race and y represents the number of participants in the 10K race, the linear equation for the given scenario is​

Answers

Answer:

20x + 45y = 9500 is the linear equation for given scenario

Step-by-step explanation:

Given that Eve makes $20 for each 5K participant and $45 for each 10K participant

Cost of each 5k participant = $ 20

Cost of each 10k participant = $ 45

Her goal is to raise $9,500

Let "x" represents the number of participants in the 5K race

Let "y" represents the number of participants in the 10K race

To find: linear equation for given scenario

The standard form for linear equations in two variables is Ax + By = C

Eve makes $20 for each 5K participant and $45 for each 10K participant and goal is to raise $ 9500

From the above statement, we can frame a equation as:

number of participants in the 5K race x Cost of each 5k participant + number of participants in the 10K race x Cost of each 10k participant = $ 9500

20x + 45y = 9500

Therefore, the linear equation for given scenario is found

Answer:

20x + 45y = 9500

yes/no: no

Solution:

Given that Eve makes $20 for each 5K participant and $45 for each 10K participant

Cost of each 5k participant = $ 20

Cost of each 10k participant = $ 45

Her goal is to raise $9,500

Let "x" represents the number of participants in the 5K race

Let "y" represents the number of participants in the 10K race

To find: linear equation for given scenario

The standard form for linear equations in two variables is Ax + By = C

Eve makes $20 for each 5K participant and $45 for each 10K participant and goal is to raise $ 9500

From the above statement, we can frame a equation as:

number of participants in the 5K race x Cost of each 5k participant + number of participants in the 10K race x Cost of each 10k participant = $ 9500

20x + 45y = 9500

If eve raises exactly $9,500, it is NOT possible for there to be 220 participants in the 5K race.

MARKING BEST ANSWER BRAINLIEST!!!!!!!!!!!!!!!!!!!!What is the median of this group of numbers?
25, 35, 35, 40, 41, 45, 100

Answers

Answer:

There are 7 number so what you want to do is separate them into groups and the median will be the number in the middle which is 40 so 40 is the median

Step-by-step explanation:

hope this helps

All ratios equivalent to 24:12

Answers

Answer:

There are so many:

2:1

4:2

6:3

Factor: 5x2 – 15x – 20.

(a) 5(x-4)(x+1),

(b) -2(x-4)(x+5),

(c) -5(x+4)(x-1),

(d) 5(x+4)(x+1).

Answers

Answer:

A

Step-by-step explanation:

Pls answer I will mark

Answers

Answer: B

Step-by-step explanation:

1.6pounds = 13.20

/1.6

1pound = 8.25

Is there enough information to prove that the triangles are congruent?
If yes, provide the correct Triangle Congruence Postulate or Theorem and a
congruence statement.
If no, justify your answer.

Answers

In triangle ABC and triangle XYZ
Angle ABC = Angle XZY (Given)
Angle BAC = Angle XYZ (Given)
AC = XY (Given)
By A.A.S congruence rule,
Triangle ABC ~ Triangle XYZ


A.A.S congruence rule - According to this congruence rule when two angles and the following side are equal then the triangle is said to be congruent.

Answer:

Yes, the triangles are congruent by AAS. △ABC is congruent to △YZX.

Step-by-step explanation:

ask nicely and I'll give you what you want

Answers

Answer:

The expressions that are equivalent to that includes:

[tex]▪ \: 3c + \frac{4}{5} + \frac{1}{2} \\ ▪ \: \frac{4}{5} + \frac{1}{2} + 3c \\ ▪ \: \frac{1}{2} + \frac{4}{5} + 3c[/tex]

Answer:

1, 3, and 5 they all equal to (3c+13/10) which was the answer for the question

Step-by-step explanation:

to find out which is equivalent  solve fraction and  solve the others to see which one is similiar.  

Evaluate 36 = (x+9) when x = 3.
O A. 3
O B. 12
O C. 21
O D. 4

Answers

I think it’s A.) 3
36=(x+9) x=3 ( substitute)
36=(3+9) add
36=(12) multiply
36\12 = 3

A student's parents offer him one of two options to receive scholarship money for college.

Option A: Deposit $17,000.00 into his savings account and then add an additional $1,250.00 each day for 30 days

or

Option B: Deposit $0.50 into his savings account and then triple that amount each day for only 10 days

When rounded to the nearest cent, how much money is deposited into his savings account on the last day (day 30) for Option A, and how much is deposited into his savings account on the last day (day 10) for Option B? If the student keeps only what is deposited on the last day, which option should he choose?


Option A Versus Option B
Option A Option B
Day Amount Deposited Day Amount Deposited
0 $17,000.00 0 $0.50
1 $18,250.00 1 $1.50
2 $19,500.00 2 $4.50
A = $142,845.76, B = $29,524.50; B, because he receives $113,321.26 more
A = $54,500.00, B = $10.50; A, because he receives $54,489.50 more
A = $37,500.00, B = $59,049.00; B, because he receives $21,549.00 more
A = $54,500.00, B = $29,524.50; A, because he receives $24,975.50 more

Answers

Answer:

option a

Step-by-step explanation:

it is because $17,000.00 will make you have more money and have better things to do in the nearest future

The amount received by student in option A and B are A = $54,500.00, B = $29,524.50, Option A is better because student receives $24,975.50 more.

What is Simplification?

Simplification in mathematical terms is a process to convert a long mathematical expression in simple and easy form.

(A)

Given that,

Amount deposit by student in starting = $17,000

Also, student add $1250 each day for 30 days,

Amount added in 30 days = 1250 x 30 = $37500

Total amount in account = 17000 + 37500 = 54500

The final amount in account is $54500.

(B)

Amount deposited into saving account = $0.50

Also, student triple that amount for 10 days,

Amount in account in 10 days = 0.50 x 3¹⁰ = 29524.5

Option A is a better deal because the student receives $24,975.50 more.

                                                 

To know more about Simplification on :

https://brainly.com/question/2804192

#SPJ2

If angle 3 is a right angle, find angle 2

Answers

Answer:

∠2=37°

Step-by-step explanation:

Given:

∠1=4x°

∠2=∠4 (Vertical Angle Theorem)

∠3=90°

∠4=(3x+1)°

∠4=∠2 (Vertical Angle Theorem)

∠1+∠2+∠3=180° (We use this equation in the next step)

∠1+∠3+∠4=180°

Thus, ∠2=(3x+1)°, making:

(4x)°+(3x+1)°+90°=180°

7x+91=180

7x=89

x=12

This means:

∠1=4x=4(12)=48°

∠2=3x+1=3(12)+1=37°

∠3=90°

∠4=3x+1=3(12)+1=37°

Desert Shores, California is located at an elevation that is below sea level. What is a possible elevation of Desert Shores, California?

A) 600 ft.
B) 500 ft.
C) -- 200 ft.
D) 0 ft.

Answers

Answer:

C) -- 200 ft.

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

That is the only negative answer

Factor completely
w^2 + 12w -f^2+ 36

Answers

Factored:
(w+6-f)x (w+6+f)

Write the value of the 4. 6.54

Answers

Answer:

Hundredths place

Step-by-step explanation:

6 in 6.54 is ones place

5 in 6.54 is tenths place

4 in 6.54 is hundredths

plz mark me brainliest

Find the slop line that passes through each pair of points (-6,1),(4,8)

Answers

Answer:

0.7

Step-by-step explanation:

Help it’s due soon all help is appreciated

Answers

i have no clue sorry maybe ask the teacher for help!

What number would you use to get rid of the fractions?*
1/2+1/5x=3/10x+4/5

Answers

Answer:

10

Step-by-step explanation:

multiplying each fraction by 10 gets of the fraction form

1/2 * 10 = 5

1/5x * 10  = 2x

3/10x * 10 = 3x

4/5 * 10 = 8

halp halp i need halp

Answers

Answer:

Where is the question . For future questions it's help (:

Step-by-step explanation:

Answer

i also need help!!!!!!!!!!

Step-by-step explanation:

Pls help I need it pls

Answers

Answer:

D-5/7

Step-by-step explanation:

You can use the formula rise over run, which is basically y2-y1 over x2-x1 in other words

In this case, y2=-3, y1= 2, x2=3 ,x1=-4

In every coordinate pair and table, the x always comes first

-3-2/3-(-4)=-5/7

What triangle is similar to the given one?

Answers

Answer:

D

Step-by-step explanation:

given cot A= 40/9 and that angle A is in quadrant 1 find the exact value of sec A in the simplest radical form using a rational denominator

Answers

Answer:

41/40

Step-by-step explanation:

Given cotA = 40/9

1/tanA = 40/9

tanA = 9/40

According to SOH, CAH, TOA

tan A = 9/40 = opposite/adjacent

Get the hypotenuse

hyp² = opp²+adj²

hyp² = 9²+40²

hyp² = 81+1600

hyp² = 1681

hyp = √1681

hyp = 41

Het sec A

sec A = 1/cosA

Since cos A = adjacent/hypotenuse

cos A = 40/41

secA = 1/(40/41)

SecA = 41/40

Hence the exact value of secA is 41/40

what is the relationship between 1 and 0.1 ? Eplain your reasoning ​

Answers

Answer:

they both have a 1

Step-by-step explanation:

find slope of the line that passes through the point (-9,7) and (9,-3)

Answers

Answer:

Step-by-step explanation:

(x₁, y₁)  = (-9, 7)    & (x₂ , y₂) = (9 , -3)

Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

          [tex]= \frac{-3-7}{9-[-9]}\\\\= \frac{-3-7}{9+9}\\\\=\frac{-10}{18}\\\\= \frac{-5}{9}[/tex]

whats the percent change from 100 to 140​

Answers

Answer:

40%

Step-by-step explanation:

Randy Houck deposited his paycheck for $385.15, a refund check from a mail

order purchase for $125.95, and $37.20 in cash.

Answers

Answer:

The correct option is c. $548.30.

Step-by-step explanation:

Note: This question is not complete. The complete question is therefore provided before answering the question. Please, see the attached pdf file for the complete question.

Also Note: This template does not allow the explanation to be added and saved here as it keeps on indicating that it contains some swearwords. The explanation is now given in the attached pdf file. Please, see the attached pdf file for the answer and explanation.

In 2001, the world population 6.5 billion and was increasing at a rate of 1.2% each year.
Find the population in 2017. Round to the nearest tenth.

Answers

Answer:

8.0 billion

Step-by-step explanation:

1.2÷100=0.012

0.012×6.5=0.078

2017-2001=16

0.078×16=1.248

6.5+1.248=7.748

nearest tenth 8.0

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somebody please help me thansk If you can help me with this whole thing i will be forever in your deptJesse and Amir were assigned the same book to read. Jesse started reading on Saturday, and he is reading 30 pages a day. Amir didn't start until Sunday, but he is reading 35 pages a day.How many days will it take Amir to catch up to Jesse, and how many pages will they each have read?Answer the questions to solve this problem using a system of equations.1. Write an equation to represent the number of pages Amir has read. Use x to represent the number of days Amir has been reading and y to represent the number of pages he has read.Write your answer in the space below.2. Write an equation to represent the number of pages Jesse has read.Using x, the number of days Amir has been reading, write an expression to represent the number of days Jesse has been reading. Remember that Jesse started reading one day before Amir. Use this expression to write an equation for the number of pages Jesse has read. Let y represent the number of pages read.Write your answer in the space below.3. Write the system of equations using your answers from questions 1 and 2.Write your answer in the space below.4. You will use substitution to solve this system. Which variable will you substitute for and why? Show the equation that results from the substitution.Write your answer in the space below.5. Solve the system of equations. Show your work.Write your answer in the space below.6. Interpret your solution. How many days does it take Amir to catch Jesse? At that time, how many pages have they read?Write your answer in the space below. I'll mark brainliest,PLEASSSEEEHow would you graph the following inequality:[tex]c\leq -4[/tex] A.closed circle on -4,arrow to the right B.open circle on -4,arrow to the rightC.open circle on -4,arrow to the leftD.closed circle on -4,arrow to the leftI'll mark brainliest,PLEASSSEEE pls answer the question an = 11+5(n1) WILL CHOOSE BRAINLIEST!!!!!!!!!!!!!30 points!!!!!!!!!!12x^2 y for x=0.3,y= 1/6 1. Which generalization can most accurately be drawn from acontrast/comparison of Supreme Court cases Plessy v. Fergusonthat set the precedent of "separate but equal" and Brown v. Boardof Education which stated that "separate but equal" was"inherently unequal"?A The Supreme Court has issued consistent decisions in casesinvolving rights of the accused.Supreme Court decisions are accepted without public controversy.C. The Justices believe that social issues are best left for state courts todecide.D. The Supreme Court has helped to determine public policy. I will mark brianly and do a question with 100 pionts if u get this one right Qu llevaba la princesa en su pecho? distinguishing feature you observe between protozoa & fungi Morning commuter traffic in cities contributes to ____ smog. In this type of air pollution, a mixing of ____ from certain plants, nitrogen oxides from cars, and UV radiation from the sun results in a variety of pollutants, such as ground-level ozone, which can cause coughing and breathing problems. There are 85 girls and 70 boys in the sixth grade. Of these students, 14girls and 8 boys take piano lessons. What percentage of the sixthgraders at this school take piano lessons? What is the volume of the cone? A 4,625.36 yd B. 2,876.7 ydC. 4,258.44 yd D. 2,787.64 yd Help pls 4=36____________ Which part of a seed plant develops into sperm cells? o embryo pollen 0 seed O xylem Yesterday, 170 guests at a hotel called for room service out of 425 guest. What percentage of the guests at the hotel called for room service yesterday? Consider the absolute value inequality: |x - 6| > 20. Will the graph of the solutions to the inequality result in an "and" or an "or" inequality? Without solving to find the exact solutions, explain does anyone know the equation? According to the diagram on the ticks life cycle, when is the MOST LIKELY time for ticks to attack human hosts?A)springBSummerCspring and fallD)spring and summer Why it is some times possible to loosen caps on screwtop bottles by dipping the cap briefly in hot water? The Jones family eats 2/3 of a packet of biscuits every day. How long will 27 packets last the family?