Question

Find the slope of the line.

Question options:

There are a total of 21 students in the choir and the drama club. There are 7 more students in the choir than the drama club. Write and solve a system of equations to represent this solution. Let x represent the number of students in the choir, and let y represent the number of students in the drama club. Interpret the solution.
 
Question options:
(7, 14); There are 14 students in the choir and 7 students in the drama club.
(7, 14); There are 7 students in the choir and 14 students in the drama club.
(14, 7); There are 14 students in the choir and 7 students in the drama club.
(14, 7); There are 7 students in the choir and 14 students in the drama club.

Answer 1

hello
someone help me

Answer 2

x number of students in the choir
y number of students in the drama club

there are total 21 students so x+y=21

there are 7 more students in the choir than the drama club so what mean that x+7 =y

x+y=21
x+7=y

solve this system for x and y

hope helped

Answer 3

thanks

Answer 4

The amount a spring will stretch varies directly with the amount of weight attached to the spring. If a spring stretches 2.1 inches when 80 pounds is attached, how far will it stretch when 40 pounds is attached?

Answer 5

There are a total of 21 students in the choir and the drama club. There are 7 more students in the choir than the drama club. Write and solve a system of equations to represent this solution. Let x represent the number of students in the choir, and let y represent the number of students in the drama club. Interpret the solution.

Answer 6

next time please make sure you are only posting 1 question per post

I will be addressing this one: The amount a spring will stretch varies directly with the amount of weight attached to the spring. If a spring stretches 2.1 inches when 80 pounds is attached, how far will it stretch when 40 pounds is attached?

for a direct variation, y = kx where k is a constant. in this case, y is the stretch (dependent variable) and x is the weight (independent variable). in the first scenario, y = 2.1 inch and x = 80 pounds, plug in y and x to solve for k. then, in the second scenario, you have your k and x value so you can solve for y.