Answer:
A. 200 Children
B. 280 People
Step-by-step explanation:
Let the total number of people attending the show be Y
Given that 2/7 of the people attending were adults, the number of adults A
A = 2/7 Y
Since the rest were children, the number of children C
C = Y - 2/7 Y
= 5/7 Y
2/5 of the children were boys, the number of boys B
B = 2/5 * 5/7Y
= 2/7 Y
The number of Girls G
G = 5/7 Y - 2/7 Y
= 3/7 Y
Given that there were 120 girls attending the performance
3/7 Y = 120
3Y = 120 * 7
Y = 120 * 7/3
= 280
The number of children in the shown C
= 5/7 * 280
= 200
The number of people at the show is Y = 280
Answer:
-x + y = 0 or x - y = 0
Step-by-step explanation:
The line passes through points (0, 0) and (4,4), then its slope is:
m = (4 - 0)/(4 - 0) = 1
Given that the line passes through (0, 0), its y-intercept is
b = 0
Using slope and y-intercept form:
y = mx + b
y = x
The standard form of a line is:
Ax + By = C
So, we have to put all variables on the left side, as follows:
-x + y = 0
Multiplying by (-1) at both sides:
x - y = 0
height or altitude for a parallelogram means the perpendicular distance from one parallel side to the other. Check the picture below.
The perimeter "P" is equal to the length of the base of one triangle multiplied by the "n" number of triangles in the figure plus two times the length of another side. The equation for the perimeter is P = 5n + 14.
We are given triangles. The triangles are arranged in a certain pattern. The length of the base of each triangle is equal to 5 units. The length of the other two sides is 7 units each. We conclude that all the triangles are isosceles. We need to find the relationship between the number of triangles and the perimeter of the figure. Let the perimeter of the figure having "n" number of triangles be represented by the variable "P".
P(1) = 14 + 5(1)
P(2) = 14 + 5(2)
P(3) = 14 + 5(3)
We can see and continue the pattern. The relationship between the perimeter and the number of triangles is given below.
P(n) = 14 + 5n
To learn more about perimeter, visit :
brainly.com/question/6465134
#SPJ1
Answer:
I can't see the list above that the question is reffering to.