Help with math question? plz?

Question

Terri sells magazine subscriptions and earns a weekly salary of $50 plus $3 for each subscription she sells. What are the variables in this relationship?

(a) Terri and the magazines
(b) total earnings and the number of subscriptions sold
(c) $50 and $3
(d) weekly salary and time

Answer 1

variables can represent anything and change.
I'd say (d), because of the independant and dependant variables.

Answer 2

None of the choices are correct.

Terri is a constant
the $50 and $3 are constants.
The weekly salary is a constant.

Thus A), C, and D) are all incorrect.

The total earnings may vary, but they are the result of other variables. Total earnings are equal to ($50 x No. of weeks worked) + ($3 x no. of subscriptions sold).

Thus the basic variables are weeks worked and subscriptions sold, and total earnings will vary depending on the changes in these two variables.

So B) is closer than the others, but still incorrect.

Answer 3

The answer is definitely (b) because a variable is a value that can change. The number of subscriptions sold can change and the total earnings can also change because it depends on how many subscriptions she sells. The weekly salary is a constant--it's always going to be $50.00.

Answer 4

Terri is a constant
50 dollars a week is a constant
time in a week is a constant

so that only leaves one answer B because the total earning depends on the number of subscriptions she sells which can vary every week

Answer 5

Variables -
B) total earnings and the # of subscriptions.

$50 and $3 are constants.
Nothing in the problem has mentioned time.
Terri is not a variable.

Answer 6

B. An equation for that would be y=50+3x where y is the total earnings and x is the amount of subscripstions she sold.

Answer 7

b

Answer 8

I think D. I really am not sure...

Answer 9

b..

Answer 10

(b)