Answer:
x=9
Step-by-step explanation:
7x = 4x + 27
subtract 4x on both sides
3x=27
divide 3 on both sides
x=9
plug in
7(9)=63
4(9)+27=63
63=63
Answer:
57/55
Step-by-step explanation:
you have to find a common multiple, so it would be:
7/11=35/55
2/5=22/55
7/11 and 2/5 mean partial pages. she read part of a page. what she really read was 1 2/55 pages.
Answer:
i need more details then this its not really explaining anything
Step-by-step explanation:
Answer:
698.46 Hz
Step-by-step explanation:
A note an octave higher than another note is double the amount of frequency.
In this example, the note is 349.23 Hz. Doubled, this is 698.46 Hz. Therefore, the final answer is the first option, 698.46 Hz