Answer:
x = -8
Step-by-step explanation:
Answer:x=-8
Step-by-step explanation:
12(x/4+2/3)=12(x/6)
3x+8=2x
3x-2x=-8
x=-8
Answer: B. (2,1)
Step-by-step explanation:
The given system of equation :
Adding equation (1) and (2), we get
Substitute the value of y in the first equation , we get
Therefore, the solution to the given system of equations = (2,1)
Answer:
B (2,1)
Step-by-step explanation:
Answer: He spent $ 11.25 at the barber shop.
Step-by-step explanation:
Here, The cost of hair cutting = $ 9,
While, the tip he gave = 25 % of the cost of hair cutting
= 25 % of 9
= 0.25 × 9
= $ 2.25
Since, Victors's total spending = The cost of hair cutting + Tip
= 9 + 2.25
= $ 11.25
Hence, He spent $ 11.25 at the barber shop.
sqrt(-49) / [ (7-2i) - (4+9i) ]
= 7i / (3 - 11i)
= 7i (3+11i) / [ (3 - 11i) (3 + 11i) ]
= (21 i - 77) / (9 + 121) = choice (d), (-77 + 21i) / 130