Answer:
Plan A - 20x+40
Plan B - 30x
Step-by-step explanation:
x will determine the number of months.
For example, Plan A's equation
If I paid for one month, I should get $60.
20(1)+40 = 60
Now for three months, I should get $100. Because Plan A charges $20/month after a one time fee of $40 for the new phone.
20(3)+40 = 100
On the other hand, Plan B gives away a free phone, meaning no one-time fees. It only charges us $30/month. That's easy.
30(1) = $30
30(3) = $90
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➷ 40 inches = 3.33333
Area = length x width
Substitute the values:
Area = 9 x 3.33333
Solve:
Area = 30ft^2
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Maybe the right two because they are more equal to each other making a better estimate.
Answer:
11 memberships
Step-by-step:
Gym 1 = 75+5m
Gym 2 = 50+7.5m
75+5m=50+7.5m
-50 from both sides
25+5m=7.5m
-5m from both sides
25=2.5m
divide both sides by 2.5
10=m
for 10therefor 75+5m<50+7.5m he must sell 11 memberships.
I think those are coordinates of points, (-5,8) and (-2,8)
so you just need to use distance formula ((8-8)^2+(-2+5)^2)=0+9=9
square root 9=3
