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
NikAS [45]
3 years ago
12

In Mrs Phillips math class the ratio of boys to girls is 4 to 2. If there are 51 girls in math class, how many boys are there?

Mathematics
1 answer:
maksim [4K]3 years ago
7 0
So for every two girls, there's four boys. There are twice as many boys than girls, so the number of girls • 2 = your answer.

51 • 2 = 102
You might be interested in
There are $5$ girls and $5$ boys in a chess club. The club holds a round-robin tournament in which every player plays against ev
Rashid [163]

Answer: 5

Step-by-step explanation:

5 0
3 years ago
57/4 as a mixed number still working on my test please help (if yuo vould go look at my last question adn help that would be gre
Harrizon [31]

Answer:

14 1/4

Step-by-step explanation:

Divide using long division. The whole number portion will be the number of times the denominator of the original fraction divides evenly into the numerator of the original fraction, and the fraction portion of the mixed number will be the remainder of the original fraction division over the denominator of the original fraction.

5 0
3 years ago
Read 2 more answers
In Exercises 3–10, use the Chain Rule to calculate the partial derivatives. Express the answer in terms of the independent varia
sashaice [31]

I'll use subscript notation for brevity, i.e.

\dfrac{\partial f}{\partial x}=f_x

3.

f(x,y,z)=xy+z^2\implies\begin{cases}f_x=y\\f_y=x\\f_z=2z\end{cases}

x(r,s)=s^2\implies\begin{cases}x_r=0\\x_s=2s\end{cases}

y(r,s)=2rs\implies\begin{cases}y_r=2s\\y_s=2r\end{cases}

z(r,s)=r^2\implies\begin{cases}z_r=2r\\z_s=0\end{cases}

By the chain rule,

f_r=f_xx_r+f_yy_r+f_zz_r=2xs+4zr=2s^3+4r^3

f_s=f_xx_s+f_yy_s+f_zz_s=2ys+2xr=6rs^2

4.

x(r,s,t)=r+s-2t\implies\begin{cases}x_r=1\\x_s=1\\x_t=-2\end{cases}

y(r,s,t)=3rt\implies\begin{cases}y_r=3t\\y_s=0\\y_t=3r\end{cases}

z(r,s,t)=s^2\implies\begin{cases}z_r=0\\z_s=2s\\z_t=0\end{cases}

By the chain rule,

f_r=f_xx_r+f_yy_r+f_zz_r=y+3xt=3rt+3r+3s-6t^2

f_s=f_xx_s+f_yy_s+f_zz_s=y+4zs=3rt+4s^3

f_t=f_xx_t+f_yy_t+f_zz_t=-2y+3xr=3r+3s-12rt

8 0
2 years ago
There are 3 boys for every 2 girls in a dance competition. Does it make sense for there to be a total of 9 people in the competi
rjkz [21]

Answer:

Yes

Step-by-step explanation:

3:2 = 5 people

3:1 = 4 people

5+4=9 people

6 0
3 years ago
Read 2 more answers
HELP MEEEEEEEEEEEHHHHHHHH (*≧▽≦)ノシ))
Naya [18.7K]

Answer:

1. Point C ( 0; 5 )

2. Point K ( 2; -3 )

3. Point N ( -6; -5 )

Look, here ( A; B ) A is located in x coordinate and B is located in y coordinate

7 0
2 years ago
Read 2 more answers
Other questions:
  • How DID I use a pattern to solve
    10·1 answer
  • 3 What is the y-intercept of the line perpendicular to the line y = -3/4x + 5 that includes the point (-3, –3)?
    8·1 answer
  • Could someone help me do this using substitution I don't know how to do this for math
    5·2 answers
  • 66) Savings Account.Christine Chu borrowed $4500 from a bank at a simple interest rate of 2.5% for one year.
    9·1 answer
  • Eighteen percent of apples grown in an orchard have defects. Let X = the number of apples that are randomly inspected from the o
    5·1 answer
  • What is the volume of this sphere?
    9·1 answer
  • A bicycle shop advertised all mountain bikes priced at a 1/3 discount. What is the amount of the discount if the bicycle origina
    12·2 answers
  • Find the range and the midrange for the following data set: 7.25, 6.75, 6, 7.5, 7, 7, 7, 7.5, 6, 8.5, 8.5, 6.5, 7, 5.5, 8.5, 7.2
    15·1 answer
  • 63° x Find the unknown angle measure​
    6·1 answer
  • Match the symbol to the meaning f(x) \rightarrow -\infty Answer 1 x \rightarrow a^- Answer 2 x \rightarrow -\infty Answer 3 x \r
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!