Answer: Both of the tables are proportional because they each go up at an even constant rate. The first table goes up at a constant rate of 8. The second table, goes up at a constant rate of 0.70.
Step-by-step explanation:
Answer:
B = 
A
Step-by-step explanation:
Given that B varies directly as A then the equation relating them is
B = kA ← k is the constant of variation
To find k use the condition A = 90 and B = 40, then
k = 
= 
=
B = A ← equation of variation
Answer:
1/6
Step-by-step explanation:
all you need to do is multiply the numerator by the numerator and the denominator by the denominator.
Your answer is x=21/4
first you subtract 7/2 from both sides to isolate x
then you simplify
hope this helps:)
brainliest?
So for $5, let's calculate each company's minutes for that much money.
Company X: First subtract the time for the first minute.
5 - 0.49 = 4.51
Then divide by 0.16, and you get about 28 minutes.
28 + the original 1 minute = 29 minutes
Company Y: $5 - 0.57 = 4.43
4.43 / 0.12 = about 36 + the original one minute = 37 minutes
So Company Y gives her more minutes for 5 dollars, and also 8 more.
