Answer:
(x, y) = (1.89, 0.59)
Step-by-step explanation:
Written in general form, the equations are ...
4x +5y -10.51 = 0
3x +8y -10.39 = 0
These can be solved using the cross-multiplication method to find ...
∆1 = (4)(8) -(3)(5) = 17
∆2 = (5)(-10.39) -(8)(-10.51) = 32.13
∆3 = (-10.51)(3) -(-10.39)(4) = 10.03
Then the values of the variables are ...
x = ∆2/∆1 = 32.13/17 = 1.89
y = ∆3/∆1 = 10.03/17 = 0.59
The solution is (x, y) = (1.89, 0.59).
Answer:
a) about 100
b) 600 phones sold total
c) i think it's the phones
Step-by-step explanation:
my bad if u get it wrong or anything
Step-by-step explanation:
Maybe
(m²)(-3)
-3m²
hope it helps
There is no solution to this equation
X≠0
The answer would be 3=6 which is an invalid answer therefor an equation with no solution.
-5x+10x+3=5x+6
Combine like terms first
5x+3=5x+6
After this whether you make it 10x=9 that’s still an invalid answer but if you subtracted 5x on both sides it’d be 3=6
Therefore x≠0
Answer:
A
Step-by-step explanation:
hope it is right plz follow if right
