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
NeX [460]
3 years ago
11

At summer camp the ratio of boys to girls was 7:2 If there were 21 boys how many girls were there?

Mathematics
1 answer:
Alenkinab [10]3 years ago
3 0
Ratio:\\7:2\\\\
7x-number\ of\ boys\\2x-number\ of\ boys\\\\
7x=21\ \ \ |:7\\
x=3\\\\
2x=2*3=6\\
Number\ of\ girls\ is\ equal\ to\ 6.
You might be interested in
Find the HCF of 12;28 and 32​
aleksley [76]

Answer:

4

Step-by-step explanation:

  28 = 22 • 7  

   12 = 22 • 3  

   32 = 25

5 0
3 years ago
I need help with another angles problem pls!! NEED ASAP
frozen [14]

Answer:19

Step-by-step explanation:

90 - 23 = 67, 67 = 4x - 9, 76 = 4x, 76 / 4 = 19

8 0
2 years ago
Read 2 more answers
The slant asymptote of f(x)=
nekit [7.7K]

Answer: It is true, I explained it down below in the picture.

Step-by-step explanation:

7 0
3 years ago
A Volcanic cone Have a diameter of 300 meters and a height of 150 meters what is the volume of the cone
ololo11 [35]
Volume of the cone = 1/3 π r² h

Volume of the cone = 1/3 π (300÷2)² (150) = 3, 534,291.74 m³

Answer: 3, 534,291.74 m³
4 0
3 years ago
Which of the following lists of orders pairs is a funtion
nordsb [41]

Answer:

D


Step-by-step explanation:

For it to be a function, every x value must have 1 unique y value ONLY.


In option A, you can see that the x value of 1 has 2 y values, 1 & 5. So it's not a function.


In option B, you can see that the x value of 0 has 2 y values, 0 & -4. Moreover, the x value of 4 also has 2 y values, 2 & -2. So it's not a function.


In option C, you can see that the x value of -2 has 2 y values, 4 & -4. This is not a function as well.


In option D, each x value has a unique y value that are different. So this is a function.


Answer is option D.

5 0
3 years ago
Other questions:
  • Solve D=RT for D, if T=5hours and R=65mph
    15·1 answer
  • 5 x - 2y equals 10 ; (3,-5)
    5·1 answer
  • What is the perimeter of rectangle ABCD on the coordinate plane? coordinate grid
    14·2 answers
  • Which of the binomials below is a factor of this trinomial? x2 - 5x - 36 A. x + 4 B. x - 4 C. x2 + 7 D. x - 7
    14·1 answer
  • A.70<br> B.40<br> C.140<br> D.20
    11·1 answer
  • Which undefined geometric term is described as an infinite set of points that has length but not width?
    12·2 answers
  • The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal l
    9·1 answer
  • For math statistics: What is the probability of winning the lottery if you buy 2 tickets and 600 other people buy the tickets as
    8·1 answer
  • Calculate the area of a sector of a circle that subtends an angle of 45° at the center of the circle, radius 14cm
    11·1 answer
  • A factory found that 8% of its produced light bulbs are defective.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!