Answer: £5000
Step-by-step explanation:
If 12% decrease = £600
Then (100- 12)% = x
100% = x
0.12x = 600 x 0.88
0.12x = 528
Divide both sides by 0.12
£4400
Therefore, original price before 12% decrease was £5000
Answer:
Step-by-step explanation:
circumference for A=2π×12=24π
linear velocity=24π÷6=4π cm/sec
circumference for B=2π×15=30π
linear velocity=30π÷6=5π cm/sec
In the right triangle, one of the angles has measure 60 deg, so the remaining angle has measure 30 deg. In such a 30-60-90 triangle, the sides occur in a ratio of 1 to to 2 (shorter leg to longer leg to hypotenuse). This means
making the answer C.
The Answer is: x1=-4 x2=1.