Bill bought 4 pens for $12. which of the following equations shows the relationship between the cost of pens, c, and the number of pens, x, bought? what will the cost of 20 pens be?
question 1 options:
a. c = 3x, $12
b. x = 3c, $60
c. c = 3x, $60
d. x = 3c, $12

So bill bought 4 pens for $12, this means that each pen costs the total amount of money divided the amount of pens, this is $12/4 = $3

Then if you bought x pens, the total cost c(x) is: c(x) = $3*x

Then, if x is equal to 20, we need to see c(20) = $3*20 = $60

So the correct answer is C) c = 3x, $60

answer: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

step-by-step explanation: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: