Hello,
Answer C
center (0,0)
b=3
c=7==>a²=c²+b²=49+9=58
x²/58+y²/9=1
Answer:
answer is: 11/10
Step-by-step explanation:
Answer:
$19.08
Step-by-step explanation:
18 + 6% = (18 x 1.06) = 19.08
Use b for bicycles b and t for tricycles.
We know that each bicycle has 2 wheels, and each tricycle has 3 wheels, and if the entire number of wheels is 57, that means the
equation would be: 2b + 3t = 57
We can "separate" b by calling it "25 - t" as an alternative,
2(25 - t) + 3t = 57, or
50 - 2t + 3t = 57,
or 50 + t = 57, so
t = 7 So there must be 18 bicycles and 7 tricycles.
CHECKING:You can check this out by multiplying 7 tricycles x 3 wheels, which is 21,
and 18 bicycles x 2 wheels, which is 36
36 + 21 = 57
