Answer:
The speed of sound is 
Step-by-step explanation:
Let
x-----> the speed of sound
we know that
so
solve for x
Answer:
x = 6
Step-by-step explanation:
You add 18 to both sides so that the equation turns into 12x = 4x + 48
Then you subtract 4x from both sides so that the equation becomes 8x = 48
Then you divide both sides by 8 and get x = 6
Answer:
x = 25 ft
Step-by-step explanation:
here we see the student standing and creating a small triangle that is equivalent to the big triangle since it has the same angles, the only difference is that its smaller, so what we have to do is make a proportion of both triangles, so since 8 ft correspond with the 40 ft they're going to be in the same part of the proportion and the other measurements, including x, on the other part, so itll be 5/8 and x/40, see how the 8 and 40 are both on the bottom? thats because they correspond, so now all you have to do is cross butterfly, so you can set up an expression on 8x= 5*40 or you can just multiply 5*40 and then divide by 8, your answer will be x= 25 ft
Answer:
c. Include the date on each page of notes
Step-by-step explanation:
The main reason for her not being able to do this is because she did not include the date on each page of notes. Failing to do so means that she does not know which notes she took first and which ones she took later, therefore preventing her from correctly organizing the notes based on when they were taken (in the correct order). Neither the class title or the names of the guest speaker prevent her from organizing her notes in order, thus making the answer c.
Answer:
<5 and <8 are vertical angles
so, their measures are congruent
Step-by-step explanation:
