You need to set up an equation: Since you know that each guest costs x dollars, and there are 10 guests,
y=10x (10 guests each cost x dollars)
But there is also a fixed rental fee of $50
y=10x+50
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This is a conversion problem. We know that 1 mile is 5280 feet, right? Since Ellie lives 2 miles, and two is double of 1, we just take 5280 and multiply that by two (or add it twice) to find how many feet is between Ellie's house and school. 5280 x 2 = 10560 (you get the same answer if you add 5280 twice). Therefore, 10560 feet lies between Ellie's house and school.
X+1=10
move +1 to the other side
sign changes from +1 to -1
to get X by itself
X+1-1=10-1
X=10-1
Answer:
X=9
Answer:that would be x=8
Step-by-step explanation: