Answer:
A and B
Step-by-step explanation:
(x+p)(x+q)
x²+xq+px+pq
x²+(xq+px)+pq
where ( xq+px) =b
and p.q =c
Answer:
2.1
Step-by-step explanation:
8
10
−
2
5
)+0.9
=3(
4
5
−
2
5
)+0.9
=3(
2
5
)+0.9
=
6
5
+0.9
=2.1
Answer:
20=2x
20/2=x
X=10
Step-by-step explanation:
System of Equations
For the problem to solve we'll use the following variables:
x = number of the early bird tickets sold
y = number of the regular tickets sold
Haley sold a total of 20 tickets, thus:
x + y = 20 [1]
Early bird tickets cost $10 and regular tickets cost $15, thus the total money collected is:
10x + 15y = 225
Dividing by 5:
2x + 3y = 45 [2]
We have to solve the system of equations [1] and [2].
Multiply [1] by -2:
-2x - 2y = -40 [3]
Add [3] to [2]:
-2x - 2y +2x + 3y = -40 + 45
Simplifying:
y = 5
Substituting in [1]:
x + 5 = 20
Subtracting 5:
x = 20 - 5
x = 15
Solution: Hayley sold 15 early bird tickets and 5 regular-priced tickets
The order pair solution is (15,5)
Answer:
a=c
Step-by-step explanation:
This is because of the transitive property; which states that if a=b and b=c, then a=c.
