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
Explain how to use a coordinate plane to find the area of a rectangle with vertices (–4, 9), (–4, –3), (–1, –3), and (–1, 9). wh
liberstina [14]

the formula for area of a rectangle is

Area = length x width

since both the length and the width of the rectangle lie on the same x and y axis, we can find the distance between the width and the distance between the length by subtracting

(-4,9) (-4,-3)

these points lie on the same x axis, so they create a vertical line

9-(-3) = 12

12 units is the distance between them

(-4,-3) (-1,-3)

these points lie on the same y axis, so they create a horizontal line

-1-(-4) = 3

3 units is the distance between them

now that we have the length and the width, we can find the area

A = 12 x 3

A = 36 units²

4 0
3 years ago
Read 2 more answers
Each of the 25 students in Mr Walker's class sold 16 raffle tickets. If each ticket costs $15 how much money did Mr Walker's stu
ludmilkaskok [199]

Answer: $6000

Hope this helps!-xoxo

5 0
3 years ago
darren has 3/4 of a gallon of soil.he needs to plant 5 small plants.if he splits the soil evenly between the plants.how much soi
nika2105 [10]

Number of plants = 5

Amount of soil present for 5 plants = 3/4 gallons

Now here we have to find how much soil will each plant get.

So we have to apply unitary method here to find how much would each plant get the share of soil.

Soil required by 5 plants = 3/4 gallons

Soil required by 1 plant = 3/4 divided by 5 = 3/20 gallons

Answer: Each plant will get 3/20 gallons of soil.

7 0
3 years ago
Read 2 more answers
What is the volume of the sphere?
Eddi Din [679]
V = 4/3 * pi * r^3
V= 4/3 3.14 * 3^3
V = 4/3 *3.14 * 27
27 * 3.14 = 84.78
V = 4/3 * 84.78 = <span>113.04
V = </span><span>113.04
hope this helps</span>
7 0
4 years ago
Read 2 more answers
Write equivalent expressions using distributive property. m(4+7)
yulyashka [42]

Hey there!

m(4 + 7)

= 1m(4 + 7)

DISTRIBUTE m WITHIN the PARENTHESES

= m(4) + m(7)

= 4(m) + 7(m)


= 4(1m) + 7(1m)


= 4m + 7m


COMBINE the LIKE TERMS

= 11m


Therefore, your answer is: 11m


Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

4 0
2 years ago
Other questions:
  • the lines below are perpendicular if the slope of the red line is undefined what is the slope of the green line
    11·1 answer
  • 308 students went on a field trip. Ten buses were filled and 8 students traveled in cars. How many students were in each bus ?
    9·2 answers
  • Simplify each expression 9 to the second power
    7·1 answer
  • Partial products of 310x434
    9·2 answers
  • Please help will give brainliest...
    7·1 answer
  • Rank the following in order from least precise to most precise.
    8·1 answer
  • Simplify polynomials -3x²+2x-x³+4-7x²​
    14·2 answers
  • Can someone help me out with the answer please
    8·1 answer
  • solve the equation x +4x-7=0 by completing the square. give your answers correct to two decimal places
    15·1 answer
  • Write an equation representing the relationship of 10:20 shown in the graph ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!