55hours times .17 will give you the answer.
Sarah spends 9.35hours on air.
Answer:
$28.20
Step-by-step explanation:
11 bumper stickers = $10.34
per sticker = $0.94
30 bumper stickers = 30*0.94
=28.20
30 bumper stickers = $28.20
Answer:

Step-by-step explanation:
Notice that in the second equation, the coefficient of
is
times greater than in the first. Therefore, by making the coefficient of
in the second equation
times greater than in the first, it's impossible to only isolate one variable.
Therefore, when
, there are no solutions to this system.
Answer:
Define the two numbers as
x
x+7
2(x+7) + 1 = 5x
2x + 14 + 1 = 5x
15 = 3x
3x = 15
x = 5
x+7 = 12
One number is 7 less than another. 5 is 7 less than 12.
Twice the second number = 2*12 = 24
Is 24, 1 less than 5 times the first number.
5*5 = 25
25-24 = 1
The smaller of the two numbers is 5.