Answer:
x = -9, y = -3.
As an ordered pair it is (-9, -3).
Step-by-step explanation:
Substitute x = 3y in equation 1:
2y + 3y = -15
5y = -15
y = -15/5
y = -3.
Now find x by plugging y = -3 in x = 3y:
x = 3*-3 = -9.
Check the answer in equation 1:
2(-3) + -9
= -6 - 9
= -15 Correct.
Answer:
Step-by-step explanation:
2s + 2.97, if he buys 2 sandwiches and a large drink then
2 represent the coefficients of s which is the number of sandwiches he bought
s represent a variable since it a function of the coefficient; s represent the price of sandwich
2.97 represent the price of large drink and also a constant since it has no letter added to
Answer:
P(she selects the route of four specific capitals) = 1 in 2,686,320 or 3.72 x 10⁻⁷
Step-by-step explanation:
Assuming that the order at which she visits each of the four cities matters, the number of possible routes is the permutation of choosing 4 out of 42 capitals:
Therefore, the probability that she selects the route of four specific capitals is 1 in 2,686,320 or 3.72 x 10⁻⁷