Answer:
4 because 5 times 4 is 20 and 3 times 4 is 12
Answer:
(x, y) = (- 3, 4)
Step-by-step explanation:
Given the 2 equations
5x + 2y = - 7 → (1)
4x - y = - 16 → (2)
multiply all terms in (2) by 2
8x - 2y = - 32 → (3)
Add (1) and (3) term by term
(5x + 8x) + (2y - 2y) = (- 7 - 32)
13x = - 39 ( divide both sides by 13 )
x = - 3
Substitute x = - 3 into either (1) or (2) and solve for y
substituting in (1) gives
(5 × - 3) + 2y = - 7
- 15 + 2y = - 7 ( add 15 to both sides )
2y = 8 ( divide both sides by 2 )
y = 4
solution is (- 3, 4 )
Step-by-step explanation:
Total marbles = 1 + 3 + 5 + 6 = 15
Probability of not blue marble = 10 / 15 = 2 / 3
Answer:
13.43$
Step-by-step explanation: just subtract 20-6.57
hint hint u can also use a calculatr
Add 0.5 on both sides
2X = 4.2
divide by 2 on both sides
X = 2.1
