400=12.50x+50
400-50=12.50x
350=12.50x
350÷12.50=x
28=x
he would have to sell 28 news paper subscriptions
Answer:
It should be (2,9).
Step-by-step explanation:
If you rotate it counter clockwise, the x value and y value switch numbers and they will both become postive.
Answer:
see explanation
Step-by-step explanation:
Given that y varies inversely as x then the equation relating them is
y = 
← k is the constant of variation
To find k use the condition that x = 9 when y = 15
15 = 
( multiply both sides by 9 )
k = 135
y = 
← equation of variation
Answer:
12.30
Step-by-step explanation:
1.30x4=5.20
54.40-5.20=49.20
49.20/4= 12.30
