So, first, we know that the whole angle must equal 90 because there's a right angle symbol, and right angles equal 90 degrees.
So, 43 + x + 3 must equal 90.
Or, 46 + x = 90
Then subtract 46 from both sides.
x = 90 - 46
x = 44
These would also be adjacent angles because they share the same vertex.
Answer: 115, 2645
(x= 115, y= 2645)
Step-by-step explanation:
There are two methods to this, which is using the graph with each x and y value, or substituting in values.
I would suggest looking at the graph first and then substituting values so you know the equation is being satisfied by the ordered pair.
In this case, one way to check it could look like this (substituting y value):
y = 23x
2645 = 23x
x = 2645÷23
x = 115
Since 4 is between 2 & 5 you input it into the middle equation.
x=4
so the answer is 4!
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
