50 People played an instrument. Every 10 people is represented as a 1 in the fraction. 5=50
For this case we propose a system of equations:
x: Let the variable representing the number of children in the concert
y: Let the variable representing the number of adults at the concert
According to the assistance we have:

According to the cost we have:

Substituting the first in the second equation we have:

Thus, the concert was 375 adults.
On the other hand we have:

Thus, the concert was 1125 children.
In total they were:
people
ANswer:
The concert was 1500 people
Answer:
<h3>A Angle 1 and Angle 7 </h3>
Step-by-step explanation:
<h3> I think the Answer is A...</h3>
If you like this answer then mark this answer as BRAINLIEST answer....
Thank you ☺️☺️
The volume of a quadrangular base pyramid is:
V = (1/3) * (Ab) * (h)
Where,
Ab: base area
h: height
Clearing the area of the base we have:
Ab = (3 * V) / (h)
Answer:
An expression that represents the area of the base of the pyramid is:
A) 3v / h units
I think its b but not sure hope it helps though