Answer:
x > 0
Step-by-step explanation:
Since there is an open circle at x = 0, then x cannot be equal to zero.
The line to the right of x = 0 is shaded meaning that x has values greater than zero.
x > 0 ← is the inequality represented on the number line
Answer:
Our system is : D + Q = 50 and 0.1*D + 0.25*Q = $9.50
Let D = # of dimes
Let Q = # of quarters
30 Quarters and 20 dimes
Step-by-step explanation:
Let D = # of dimes
Let Q = # of quarters
so
D + Q = 50 and 0.1*D + 0.25*Q = $9.50
We can solve this.
D = 50 - Q
0.1*(50 - Q) + 0.25*Q = $9.50
5 - 0.1*Q + 0.25*Q = 9.5
5 + 0.15*Q = 9.5
0.15*Q = 4.5
Q = 4.5 / 0.15 = 30
D = 50 - Q = 50 - 30 = 20
Answer:
$21.51
Step-by-step explanation:
$71.70-70%=$21.51
