Neither, turn 80% into a decimal, 0.8, then multiply.
Answer:
Step-by-step explanation:
The answer would be 1.25.
Answer:
42(10)+56(5)
420+280
700$ profit
Step-by-step explanation:
i hope this helps! comment of you still need help and ill do my best
Answer:
Answer:
835.29 Hz
Explanation:
When moving towards the source of sound, frequency will be given by
f*=f(vd+v)/v
Where f is the freqiency of the source, vd is the driving speed, v is the speed of sound in air, f* is the inkown frequency when moving forward.
Substituting 800 Hz for f, 340 m/s for v and 15 m/s for vd then
f*=800(15+340)/340=835.29411764704 Hz
Rounded off, the frequency is approximately 835.29 Hz
ı hope ıts true
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