Answer: The constant of proportionality is r = 5.
Step-by-step explanation:
O, we know that x and y are proportional, this means that:
y = r*x
where r is the constant of proportionality.
we also have the table
x y
7 35
12 60
20 100
Now, we can replace those values in our equation and get, for the first pair:
35 = r*7
r = 35/7 = 5
for the second pair:
60 = r*12
60/12 = 5 = r
So we can conclude that the constant of proportionality is 5.
Answer:
7 T-Shirts
Step-by-step explanation:
Given:
100 Dollar
30 = sweater
42 = Jeans
4 each = t-shirts
Solution:
30+42 = 72
100-72 = 28
28/4=7
Therefore she can buy 7 T-Shirts.
Answer:
98
Step-by-step explanation:
Answer: Initial Temp: 71
Rate of change: -13/1
Step-by-step explanation:
For the intitial temperature, 32 and add 13 three times for each hour. For rate of change it is temperature dropped/ hour
Answer:
n = 6 is closest to the correct value.
Step-by-step explanation:
For the terminal side to fall on the y-axis, the angle must be a multiple of 90 degrees. Setting (525n)° = (90)°, or n = 525/90 = 5 5/6.
The answer n = 6 is closest to this result.