You would need to make them eliminate so I would multiply the entire first one by 2.5 to make the X's cancel out. So you would end up with -5X+7.5Y=17.5. The X's would cancel and you would be left with 15.5Y=15.5. So Y=1. Then replace Y into one of the equations. I'm going to use the top again. -2X+3(1)=7. Subtract 3 from both sides to get -2x=4. Divide both sides by negative 2 to get X=-2. So the solution would be (-2,1)
Answer:
Step-by-step explanation:
k=3 or k=−7 both choices are correct
Answer:
4719
Step-by-step explanation:
It’s c because none of the c values repeat
Answer:
21 Feet
Step-by-step explanation:
7 yards is equal to 21 feet
