Step-by-step explanation:
you must have left out important pieces of the equation.
what I can see and therefore solve is
-G + 2 = -12
-G = -14
G = 14
Answer: can you show us plz
Step-by-step explanation:
Answer:
The cost of one day lily = $ 11,
The cost of one shrub = $ 2.
Step-by-step explanation:
Let x be the cost of one day lily and b be the cost of one shrub,
Michaela spent $148 in 12 day lilies and 8 shrubs.
⇒ 12 x + 8 y = 148
⇒ 3 x + 2 y = 37 ----------(1)
While, Julia spent $92 on 6 day lilies and 13 shrubs.
⇒ 6 x + 13 y = 92 --------(2)
2 × Equation (1),
⇒ 6 x + 4 y = 74 --------(3)
Equation (2) - Equation (3),
9 y = 18
⇒ y = 2
By substituting this value in equation (1),
⇒ 3 x + 4 = 37
⇒ 3 x = 33
⇒ x = 11
Hence, the cost of one day lily = x = $ 11
And, the cost of one shrub = y = $ 2
I can't conveniently copy the logical symbols you use, so I write
AND = ∧ (conjunction)
OR = ∨ (disjunction)
NOT = ¬
Tautologically,
p = (p AND q) OR (p AND NOT q)
and we can distribute the OR to get the equivalent statement
(p OR (p AND NOT q)) AND (q OR (p AND NOT q))
and again to get
((p OR p) AND (p OR NOT q)) AND ((p OR q) AND (q OR NOT q))
Now, q OR NOT q is always true, and p OR p is simply p, so we have
p = p AND (p OR q) AND (p OR NOT q)
This shows that p OR NOT q is already included in p, so our initial statement is simply
p AND (NOT p OR NOT q)
Distributing the conjunction, we get
(p AND NOT p) OR (p AND NOT q)
p AND NOT p is tautologically false, but we're considering a disjunction, so the truth value of p AND NOT q is the only value that's relevant. So, the initial statement collapses to
p AND NOT q
