#18. C. 1&3
This is be cause when you simplify to y=.. for 4y=3x and 8y=6x, they both turn out to be y=3/4x. The constant of proportionality is 3/4 because both equations simplify to have that as a constant.
#19. D
Kathy can add less than or equal to 7 books to her suitcase.
To cross off the first two choices(A&B), you input a number above 7 and then multiply it by 1 3/4 . Add it to 37 1/2 and it will be more than 50, meaning it will not fit since the suitcase can’t have more than 50 pounds in it.
To cross off C, you would multiply 1 3/4 by 7 and get 12.25. Add 12.25 to 37 1/2 and you will get 49.75 . This result would mean that you can have less than 7 books or just 7 books, leaving the answer to be D.
Answer:
Which of these statements is true?
July 03 book Science up36 down8
A
Places on the same longitude have the same day length on any given day.
B
The local time will be same for all places on the same latitude.
C
At 00 longitude, at some time, it would be noon to the east and midnight to the west.
D
The maximum time difference between any two places will be just below 24 hours.
Step-by-step explanation:
Answer:
100 i think im not sure but i think its 100
Step-by-step explanation:
im not dat good at math either
Answer:
.22222
.37037
Step-by-step explanation:
I=instrument
J=job
a.)
to have a job and not play instrument is equal to J∩I'
j= J∩I+J∩I'
14=8+J∩I'
J∩I'=6
which in terms of a probability is 6/27= 2/9=.22222
b.)
27-I∪J
I∪J=I+J-I∩J
11+14-8=17
27-17=10
10/27= .37037
Answer:
Step-by-step explanation:
Construct a 2-columned table for each function. Arbitrarily choose x values to go into the first column, values between -3 and +3:
Example, for y = 3x + 1:
x y = 3x + 1 (x, y)
--------------------------------
-2 3(-2) + 1 (-2, -5)
0 3(0) + 1 (0, 1)
1
2
x is the "independent variable." You choose the values, subject to the requirement that -3 < x < +3. The function will return the y values, which are dependent upon the inputs x. This will give you a good number (e. g., 5) points to plot. Draw a line through these points to obtain a graph of
y = 3x + 1. And so on. You need to go through this procedure once for each of the 3 given functions.
