Answer:
x=3, y=0.8
Step-by-step explanation:
8x+5y=28
4x+5y=16
Subtract the second simultaneous equation from the first.
You are left with: 4x=12
12/4=3
x=3
Substitute this back into one of the equations.
8(3)+5y=28
8*3=24
28-24=4
4=5y
4/5=0.8
y=0.8
Answer:
Step-by-step explanation:
29/50 = 0.58
4(x-5)=3(x+5)
Multiply the first bracket by 4
(4)(x)=4x
(4)(-5)=-20
Multiply the second bracket by 3
(3)(x)=3x
(3)(5)=15
4x-20=3x+15
Move 3x to the other side
Sign changes from +3x to -3x
4x-3x-20=3x-3x+15
4x-3x-20=15
x-20=15
Move -20 to the other side
Sign changes from -20 to +20
x-20+20=15+20
x=15+20
Answer: x=35
Answer:
Step-by-step explanation:
I'm assuming these are logs to the base 6
2 log6 x = 2
log6 x^2 = 2
So x^2 = 6^2
x = 6, -6.
Answer: Acceleration ≅ 0.067 m/s²
Step-by-step explanation:
First we have to convert speeds to meters per second since time is in seconds.
We have to multiply speeds by 1min/60sec
Beginning speed (70m/min)x(1min/60sec) = 70/60 m/s
Final speed (106m/min)x(1min/60sec) = 106/60 m/s
Acceleration = (Final speed - Beginning speed) ÷ time
Acceleration = (106/60 - 70/60)m/s ÷ 9s
Acceleration = (36/60)m/s ÷ 9s
Acceleration = 36m/60·9s²
Acceleration = 36m/540s²
Acceleration ≅ 0.067 m/s²
Answer: Acceleration ≅ 0.067 m/s²
<h2><em>Spymore</em></h2>