Answer:
(x,y)=(5,-1)
Step-by-step explanation:
1. 2x+y=9 ---> y=9-2x
2. Substitute y=9-2x into 3x-2y=17 ---> 3x-2(9-2x)=17 ---> 3x-18+4x=17 --> 7x=35 ---> x=5.
3. Substitute x=5 into 2x+y=9 ---> 2*5+y=9 ---> y=9-10 ---> y= -1
Answer:
true
Step-by-step explanation:
let the vertex of the triangle be A(x1, y1), B(x2, y2), C(x3, y3) .
the centroid of the triangle will be (
, 
).
cordinate of mid point of AB (
)
C I have done this before
Hello!
There are 4 cheetahs. There are 3 times as many elephants than cheetahs. Multiply:
4 • 3 = 12
12 + 4 = 16
Rebecca saw 16 animals at the zoo.
I really hope you found this helpful! :)
Answer:
117
Step-by-step explanation:
-3 + m /9 = 10
-3 + m/9 = 10
m/9 = 10 + 3
m/9 = 13
m/9×9 = 13 × 9
m = 117
