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
PIT_PIT [208]
2 years ago
7

The ratio of boys to girls in chorus is 2:5. If there are 42 students in the chorus how many are boys

Mathematics
2 answers:
ASHA 777 [7]2 years ago
8 0

Answer:

12

Step-by-step explanation:

Let's create a table

\left[\begin{array}{cc}boys&girls\\2&5\\2x&5x\end{array}\right]

2 : 5 is the same as 2x : 5x because you multiply both sides in 2:5 by x

If the ratio is 2x : 5x, what is the total?

2x + 5x = 7x

The total is 7x

However, we are given that there are 42 students

So, 7x = 42

x = 6

As we said earlier, boys = 2x

We know that x = 6, so 2x must equal to 12

There are 12 boys.

Hope this helps :)

Have a nice day!

AVprozaik [17]2 years ago
6 0

Answer:

What is the ratio of boys to girls in simplest form?

The ratio of boys : girls →4:5 so you have 4 boys and 5 girls making the whole count 4+5=9 in its simplest form. So to change the ratio proportion into fraction proportion we have: boys →49 of the whole

Step-by-step explanation:

You might be interested in
3x+15=3(x+5) help please?
UkoKoshka [18]
3x+15=3(x+5)

3x+15=3x+15

3x-3x=15-15

Therefore x can be equal to any value.
3 0
2 years ago
Read 2 more answers
Which steps show how to use the distributive property to evaluate 6 times 49
lina2011 [118]

Answer:

294

Step-by-step explanation:

The distributive property for multiplication is as follows :

a(b+c) = ab + ac

We need to evaluate 6 times 49 i.e. 6(49).

We can write 49 as (50-1)

6(50-1) = 6(50+(-1))

Here, a = 6, b = 50 and c = -1

So,

6(50+(-1)) = 6(50) + 6(-1)

= 300-6

= 294

So, answer is 294. Option (A) is somehow correct.

6 0
3 years ago
One of the sides of a parallelogram is 4.2 cm and the altitude to that side is 3.6 cm. Find the perimeter of the parallelogram i
adelina 88 [10]
The product of side length and altitude is area. The area remains the same regardless of how you measure it.

From the first side and altitude,
.. area = side*altitude = (4.2 cm)*(3.6 cm) = 15.12 cm^2
From the second side and altitude
.. area = side*altitude
.. 15.12 cm^2 = side*(2.4 cm)
.. side = (15.12 cm^2)/(2.4 cm) = 6.3 cm

The perimeter is the sum of the measures of all sides. Opposite sides are of equal measure.
.. perimeter = 2*(4.2 cm +6.3 cm) = 21.0 cm
4 0
3 years ago
What is the slope?__________
mojhsa [17]

Answer: 0,6


Step-by-step explanation:


Slope is a surface of which one end or side is at a higher level than another; a rising or falling surface.


The answer is 0,6 because on the y axis its plotted zero and then on x you count up its 6.

5 0
3 years ago
How many elements are in the set (A,B,C)?<br> O
Svetradugi [14.3K]
I believe it is 0 but I’m not exactly sure
6 0
3 years ago
Other questions:
  • Twice the difference of a number and 6 is at least 24
    5·1 answer
  • The area of the rectangle shown is 24 square inches. how much longer is its length than its width?
    9·2 answers
  • The length of a rectangle is 3 feet more than the width. if the perimeter is 194 feet, what are the length and the width?
    11·1 answer
  • 2 trains leave the station at the same time. Train A is traveling 16 miles slower than train B. The two trains are 720 miles apa
    6·1 answer
  • How do you solve -2+6(-6x+6)?
    6·1 answer
  • Which graph shows the solution to the system of linear inequalities? y &lt; 2x – 5 y &gt; –3x + 1
    5·2 answers
  • the volume v of the cylinder is 65 Pi cubic centimeters the height of the cylinder is 5 cm use the formula V equals BH to find t
    14·2 answers
  • Sto
    12·1 answer
  • What is a unit fraction?
    9·1 answer
  • 371 + 18x ≥ 566 solve for X
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!