396.9
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4000 millimeters = 400 centimeters.
Step-by-step explanation:
- Step 1: Convert 4000 mm to cm.
1 cm = 10 mm
∴ 1 mm = 1/10 cm
⇒ 4000 mm = 4000/10 cm = 400 cm
Answer:
3(2x-5y) = 3(-1)
2(-3x+2y)= 2(7)
6x-15y = -3
-6x +4y = 14
now, add the two equations
0x - 11y = 11
divide both sides by -11
y = -1
insert -1 in for y in either original equation and solve for x.
2x -5(-1) = -1
2x +5 = -1
2x +5 -5 = -1 -5
2x = -6
2x ÷2 = -6 ÷2
x= -3
Answer:
0.085
Step-by-step explanation:
We know that 1/2=0.5. And to convert from percent to decimal you have to divide by 100.