2x + y = 1 . . . (1)
3x - y = -6 . . . (2)
(1) + (2) => 5x = -5 => x = -5/5 = -1
From (1), 2x - 1 = 1 => 2x = 1 + 1 = 2 => x = 2/2 = 1
x = 1, y = -1
Answer:
197
Step-by-step explanation:
the answers 197 because if an=5n-3 then a40= 197
Answer:40%
Step-by-step explanation:
Given
The zoo featured 6 whales exhibits
There are 15 exhibits in total
Percentage of Zoo's exhibits featuring whales
Answer:
27
Step-by-step explanation:
"How many more ... than ..." is a verbal cue to use subtraction.
415 - 388 = 27
There are 27 more third graders than second graders.
Yes, the rates are equivalent