1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sashaice [31]
2 years ago
9

The ratio of sixth graders to seventh graders at the school dance is 2 to 3.

Mathematics
1 answer:
Inessa [10]2 years ago
6 0

Answer:

18

Step-by-step explanation:

2:3 x 9

18:27

18 + 27 = 45

You might be interested in
An assistant cook peeled 18 potatoes in 6 minutes. At this rate, how many potatoes can he peel in 50 minutes?
malfutka [58]

Answer:

150 potatoes

Step-by-step explanation:

Since the assistant can peel 18 potatoes in 6 minutes, we know that he can peel \frac{18}{6}=3 potatoes in 1 minute. Therefore, he will be able to peel 3*50=150 potatoes in 50 minutes. Hope this helps!

7 0
3 years ago
Read 2 more answers
15% of what number is equal to 9
just olya [345]
The percentage of 15% of 9 is 60% (I think)
8 0
2 years ago
Read 2 more answers
15 divided by 22.8.
JulijaS [17]
.6578 this would be the answer
6 0
3 years ago
alonzo and miguel scored a total of 40 points in the basketball game.miguel scored four more points than twice alonzo's score .H
adelina 88 [10]
Alzono has 18. Miguel has 22.
3 0
2 years ago
Nonlinear Systems of Equations
zheka24 [161]

The square root and cube root identities are proved.

According to the statement

we have to find that the use of the square root identity (x − y)2 = x2 − 2xy + y2

And use of cube root identity a3 + b3 = (a + b)(a2 − ab + b2).

So, For this purpose, we know that the

A. Let us assume the two conditions.

So,

2x + 3y = 6  -(1)

4x + 7y = 8  -(2)

Here we use elimination method

So, Multiply 4 with (1) and 2 with (2)

8x + 12y = 24  

8x + 14y = 16  

Now eliminate x from these equations

-2y = 8

here y is -4.

and the x become

2x + 3y = 6  

2x -12 = 6

2x = 18

x = 9.

B. For the use of identity (x- y)^{2}  = x^{2} - 2xy + y^{2}

Let us assume a number 26 and 28 then fill it in the condition then

(28- 26)^{2}  = 28^{2} - 2(28)(26) + 26^{2}

Then

(28- 26)^{2}  = 784 - 1456 + 676

(28- 26)^{2}  = 4

And we have to prove the cube root identity then

The identity is

a^{3}  + b^{3}  = (a + b)(a^{2} - ab + b^{2})

Then let us assume the number 8 and 9 then

a^{3}  + b^{3}  = (a + b)(a^{2} - ab + b^{2})

8^{3}  + 9^{3}  = (8 + 9)(8^{2} - 8*9 + 9^{2})

8^{3}  + 9^{3}  = (17)(64 - 72 + 81)

8^{3}  + 9^{3}  = (17)(73)

8^{3}  + 9^{3}  = (1241)

Hence by this way we prove the square and cube root identities.

So, The square root and cube root identities are proved.

Learn more about square root and cube root here

brainly.com/question/661780

#SPJ1

3 0
1 year ago
Other questions:
  • What is the slope of a line that is perpendicular to the line represented by the equation 3x+4y=12
    10·2 answers
  • A triangle that contains angles of 27°, 90°, and 63° is a(n) _______ triangle brainly
    8·1 answer
  • Is 3 sin(alpha)+4 cos(beta)=8 possible
    14·2 answers
  • April is randomly choosing five CDs to bring in her car from the following: 6 pop CDs, 8 rock CDs, and 10 R&B CDs. What is t
    5·2 answers
  • The amount of money in Toni's savings account after x weeks is described by the function f(x) = 5x + 20. Which best interprets t
    7·1 answer
  • A caterer charges a $65 equipment fee to set up for a party and $9.50 per p person for food served at the party. Which of the fu
    10·1 answer
  • Score: 0 of 2 pts
    9·1 answer
  • 4.07065 in words or written form?
    14·2 answers
  • Gotta go back to school today..
    5·1 answer
  • 1
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!