Which of these strategies would eliminate a variable in the system of equations? x – 2y = 11
5x + 3y = -11
Choose all answers that apply:
А
Add the equations.
B
Multiply the top equation by 5. then add the equations.
C
Multiply the top equation by –5, then add the equations.

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.