Let's plug in what x =, y-3 into 2x+y=12
2 (y-3)+y=12
distribute 2 to both y and -3
2y-6+y=12
add all ys
3y-6=12
+6 both sides
3y=18
÷3 both sides
y=6
plug in y into x=y-3 to find x
x=6-3
x=3
Answer:
B.
Step-by-step explanation:
The answer is B because if you look at the graphs it should be easy to tell
E=2x+12y
T=8x+8y I believe that’s how it should be if there are answer choices may I see?
Total heads = 10
Total legs = 26
Cat = 4 legs
Birds = 2 legs
------------------------------------
Assumed all birds :
------------------------------------
Total legs = 10 x 2 = 20
------------------------------------
Difference in legs :
------------------------------------
26 - 20 = 6
------------------------------------
Difference in legs between the two animals:
------------------------------------
4 - 2 = 2
------------------------------------
Find number of cats :
------------------------------------
6 ÷ 2 = 3
------------------------------------
Find number of birds :
------------------------------------
10 - 3 = 7
------------------------------------------------------------------------
Answer: There are 3 cats and 7 birds.
------------------------------------------------------------------------
Answer:
please mark me brainliest if it helps you
B does NOT represent a function.