Answer: 3.6
Step-by-step explanation:
½bh = 6.12
½ × 3.4 × b = 6.12
b = 6.12/ 1.7
Write down the numbers, one under the other, with the decimal points lined up. Put in zeros so the numbers have the same length, Then add using column addition, remembering to put the decimal point in the answer. Do the same for subtracting.
Answer:
Step-by-step explanation:
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
