how many boys are in the choir​

How Many Boys Are In The Choir

Answers

Answer 1

9514 1404 393

Answer:

  D.  210

Step-by-step explanation:

If b is the number of boys in the choir, the ratio of boys to girls is ...

  b/150 = 7/5

  b = 150(7/5) = 30(7) = 210

There are 210 boys in the choir.


Related Questions

The sum of the first 21 terms of the progression, - 18, - 15,-12.....is?​

Answers

You can just use the tn formula to solve this tn= t1 + (n-1)d

The sum of 21 terms is -1080.

What is Arithmetic Progression?A series in which the differences between each pair of following terms are the same is known as an arithmetic progression.An arithmetic progression is a sequence in which every phrase—aside from the initial term—is created by multiplying the previous term by a predetermined amount.

given:

- 18, - 15,-12.....

First term, a= -18

common difference, d= -15 + 18= -3

So, [tex]S_{21[/tex] = 21/2 [ 2(-18)+ (21- 1) (-3)]

[tex]S_{21[/tex] = 21/2 [ -36 + (20) (-3)]

[tex]S_{21[/tex] = 21/2 [ -36 - 60]

[tex]S_{21[/tex] = 21/2 (-96)

[tex]S_{21[/tex] = 21 x (-48)

[tex]S_{21[/tex] = -1008

Hence, the sum of 21 terms is -1080.

Learn more about Arithmetic progression here:

https://brainly.com/question/16947807

#SPJ5

Can someone pls help me out

Answers

>> Answer

___________

[tex] \: [/tex]

[tex]\boxed{ \rm{answer \: by \: { \boxed{ \rm{☆HayabusaBrainly}}}}}[/tex]

This is Question no picture, soo iam work in question before^^

Step by step :

x² = 12² + 10²

x² = 144 + 100

x² = 244

x = 15,6m

Find two consecutive numbers whose squares differ by 11.
Please help! I will give you brainliest​

Answers

Answer:

6 and 5

Step-by-step explanation:

6*6 -5*5

=36-25

=11

ANSWER FOR A CHANCE TO WIN A TESLA MODEL X


(image down below)

Answers

Answer:

all right angles are congruent (90 degrees)

Step-by-step explanation:

I don't know if there are choices for you, but all right angles are congruent, meaning they are the same measurement

Helllp pls help and don’t comment if u don’t know

Answers

Answer:

a) 7z³+2z²-2z+1

b)2x²+3x-8

Step-by-step explanation:

a) (7z³+4z-1)+(2z²-6z+2)

   7z³+2z²-2z+1

b) (5x²-2x-1)-(3x²-5x+7)

   5x²-2x-1-3x²+5x-7

   2x²+3x-8

For the first one Answer:7z^3 −2z+1+2z^2

Step-by-step explanation:

(7z ^3

+ 4z −1)+(2z^2

− 6z +2)

Combine 4z and −6z to get −2z.

7z3  − 2z −1 + 2z2  +2

Add −1 and 2 to get 1.

7z3  − 2z + 1 + 2z2

plz help me solving me math questions​

Answers

C. because i has the exact hw and got it right

If Tristan wants to stretch the spring by 9 inches, how many kilograms of weight must he apply to it?

Answers

Answer:

Step-by-step explanation:

Substitute y = 9 into the equation y = 3x, or locate the answer on the graph:

y = 3x

9 = 3x.

Divide both sides of the equation by 3:

 [tex]\frac{9}{3}[/tex]  =  [tex]\frac{3x}{3}[/tex]

       3 = x

The spring stretches 9 inches with 3 kilograms of weight attached to it.

5a+3a-4=36


Somebody please answer this

Answers

Answer:

a=4

Step-by-step explanation:

combine like terms

8a-4=36

add on both sides

8a-4+4=36+4

8a=32

divide

a=32/8

a=4

Answer:

a = 5

Step-by-step explanation:

5a+3a = 8a

8a - 4 = 36

8a - 4 + 4 = 36 + 4

8a = 40

a = 40 divied by 8

a = 5

b. You can determine how many times greater the range of one internet company is than the other by writing their ranges as a ratio that compares the range of Winnies wireless access devices to the range of Ivan’s wireless access devices.

Answers

Answer:

1.32 x 104: 2.64 x 103

1.32 x 10*4 1.32

------------ = ----- x 10*4-3 = 0.5 x 10 = 5

2.64 x 10*3 2.64

Step-by-step explanation:

Find the perimeter of triangle ABC

Answers

Answer:

20 units

Step-by-step explanation:

to solve this equation you need the pythagorean theorem: a^2 + b^2 = c^2

2^2 + 7^2 = 53; square root of 53 is 7.28010989; or about 7.3 units (line AC)

2^2 + 6^2 = 40; square root of 40 is 6.32455532; or about 6.3 units (line BC)

4^2 + 5^2 = 41; square root of 41 is 6.40312424; or about 6.4 units (line AB)

7.3 + 6.3 + 6.4 = 20

20 units

Jose needs 6.2 lb of organic blueberries to make smoothies. Organic blueberries are on sale for $2.85 per pound. Jose estimates that he will need $12 to buy the 6.2 lb of blueberries. What is Jose’s error?
1. Jose did not make an error. His estimate of $12 is correct.
2. Jose incorrectly rounded $2.85 down to $2. The estimate should be $18.
3. Jose incorrectly rounded 6.2 up to 7.
4. Jose incorrectly multiplied 2 and 7. The estimate should be $14.

Answers

Answer:

B

Step-by-step explanation:

Please help me! Please!

Answers

Answer:

here is your aneswer

the answer. will be 40

A _________ indicates the outer edge of a roadway, and it may be crossed only by traffic moving to or from the shoulder.

Answers

Answer:

edge lines

Step-by-step explanation:

(You toss two dimes 24 times and record the results use the table to find the experimental probability of the event.)
4. Tossing two tails.
5. Tossing on head and one tail.
6. Not tossing 2 heads.
7. Tossing all heads or all tails.

Answers

1. 5/24
2. 15/24
3. 5/24
4. 9/24

Answer this please because I need help nowwwww

Answers

Answer:

[tex]3(x + 4) = 3x + 11 \\ 3x + 12 = 3x + 11 \\ 3x - 3x = 12 - 11 \\ 0 = 1[/tex]

So; Not solution

> Simplify the expression: | - 8 - ( + io)
5
12
4.
5
12
4.

Answers

-79/100 and the decimal form is -0.79

20,612,439 in scientific notation

Answers

2.0612439*10^7 should be your answer

please help me
IF YOU DONT KNOW THE QUESTION, PLEASE DONT ANSWER IT FOR THE PONIS. I REALLY NEED IT

Answers

Answer:

As follows,

Step-by-step explanation:

1

3x^2y^-1

3x^2/y

2

∛2x^5y^3

2^(1/3)x^(5/3)y^(3/3)

2^(1/3)x^(5/3)y

3

5^(4/4)x^(1/4)y^(3/4)

∜5^4xy^3

simplify -1 1/2 divided by 1 2/3

Answers

Answer:

-5/2

Step-by-step explanation:

Or -2.5

If you divide a negative by a positive it becomes a negative.

Hope this helps any!

What is the missing value??

Answers

the missing value is 17.

Answer:

17

Step-by-step explanation:

The 'y' is increasing by 4 every time 'x' is going up by 1

hhhhhhhhhhheeeeeeeeelllllllllllllppppppppp

Answers

Answer:

Your answer is C. Angle a is congruent to both angles 3 and 1.

Step-by-step explanation:

4(x-8)+12 equal 2(2x-9)

Answers

(Answer explained)

4(x-8)+12=2(2x-9)

We move all terms to the left:

4(x-8)+12-(2(2x-9))=0

We multiply parentheses

4x-(2(2x-9))-32+12=0

We calculate terms in parentheses: -(2(2x-9)), so:

2(2x-9)

We multiply parentheses

4x-18

Back to the equation:

-(4x-18)

We add all the numbers together, and all the variables

4x-(4x-18)-20=0

We get rid of parentheses

4x-4x+18-20=0

We add all the numbers together, and all the variables

-2!=0

There is no solution for this equation

   

3.7 - 1.8 - 3.67 + 4.4 - 1.34

Answers

Answer:

1.29

Step-by-step explanation:

Answer:

The person above me is correct, the answer would be 1.29. ^ .^

Step-by-step explanation:

A company is downsizing its employees by 11%. If the company has 200 employees how many staff members are left?

Answers

Answer:

178

Step-by-step explanation:

200*11%

200*.11

22 employees will leave

200-22 = 178 left

In an unknown planet, a rock with a mass of 10 kg has a weight of 20 N. What is the gravitational acceleration of objects near the surface of the unknown planet?​

Answers

Answer:

The gravitational force between a mass and the Earth is the object’s weight. Mass is considered a measure of an object’s inertia, and its weight is the force exerted on the object in a gravitational field. On the surface of the Earth, the two forces are related by the acceleration due to gravity: Fg = mg. Kilograms and slugs are units of mass; newtons and pounds are units of weight.

You can use Newton’s law of gravitation to get the acceleration due to gravity, g, on the surface of the Earth just by knowing the gravitational constant G, the radius of the Earth, and the mass of the Earth. The force on an object of mass m1 near the surface of the Earth is

F = m1g

This force is provided by gravity between the object and the Earth, according to Newton’s gravity formula, and so you can write

Step-by-step explanation:

Hurryyyy

An equation is modeled below Determine the solution for the equation.

Answers

Answer:

4

Step-by-step explanation:

:)

For this graph, mark the statements that are true.

A. The range is the set of all real numbers.
7
B. The range is the set of all real numbers greater than or equal to
zero.
C. The domain is the set of all real numbers.

D. The domain is the set of all real numbers greater than or equal to
-2.

Answers

Answer:

B and C are true

Step-by-step explanation: range is y values the graph can have from 0 up

domain in x values the graph can have so all number in either direction left and right

Answer:

Step-by-step explanation: The answer is B and C because range is y and it is greater than 0 and domain is x and is go infinitely in both directions

i need help with my math homework

Answers

Answer:

x=3

Step-by-step explanation:

g(x)=2x+1,

When g(x)=7

g(x)=2x+1,

7=2x+1

7-1=2x

x=6/2

x=3

When the exponent is 2 and the base is unknown and the answer is 0.64 What is the base?

Answers

the base is 0.8
0.8^2 would also be 0.8 x 0.8
which will equal 0.64

why did the Europeans come to north america

Answers

Answer:

They wanted to spread Christianity. They also hoped to gain new lands and wealth for their countries. Finally, you read about the valuable cargo of New World plants that explorers brought back to Europe.

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