Answer:
(-4,-1)
Step-by-step explanation:
-3x+10y=2
-3x+3y=9
-3x=2-10y
-3x=9-3y
2-10y=9-3y
2-9=10y-3y
7y=-7
y=-1
-3x+3(-1)=9
-3x-3=9
-3x=12
x=-4
Answer:
30
Step-by-step explanation:
We know that in this case, since this is an intersection, the opposite sides are the same. Therefore, we can make a equation like this:
75 = 3x-15
Then we get:
90=3x
30=x
B. because if u add 2.5 and 3 together it's 5.5 then times 4 because the fraction
[Find the changes in the salary]
Increase = 28100 - 25300 = 2800
[the change, divided by the original amount. x100 to give the percentage]
percentage increase = 2800/25300 x 100 = 11.07%
Answer:
Step-by-step explanation:
They're both right angle triangles and have the same length and size , hence congruency
