Let r represent reptiles
210=3r-120
330=3r
110=r
110 reptiles
Answer:
Times
Step-by-step explanation:
Answer: did you get the answer
Step-by-step explanation: pleasee
Answer:
36 White cars
Step-by-step explanation:
total of 40 white cars and yellow cars" means 40 = W + Y
"9 times as many white cars as yellow cars" means 9Y = W
9W + 9Y = 360 (first equation; multiply (W+Y=40) by 9 to eliminate Y)
W - 9Y = 0 (carefully revise the second equation)
------------------- (Elimination method: add the equations)
10W = 360
W = 36 Ans: 36 White cars
Checking (very important):
40 = W + Y
40 = 36 + Y
4 = Y
is 9(4) = 36
36 = 36
The pattern is adding 11 each time. So the next answer would be 40, then 51, then 62, and so on.