Answer:
7 minutes to have 47 liters.
Step-by-step explanation:
47 > 17 + 5x
Solve for x...
47 > 17 + 5x
47 - 17 > 5x
30 > 5x
30/5 > x
7 > x
So it will take more than 7 minutes to have 47 liters.
Y=2x-9
y=x-4
x-4=2x-9
+9 each side=
x+5=2x
-x each side=
5=x
flip for the final answer of x=5
Answer:
The rate of change is
or 1.75. That shows that the cost per video game is $1.75
Step-by-step explanation:
The change in y over change of x or slope can be calculated using the equation:
so take the last two points: (10, 25) and (15, 33.75).
33.75-25=8.75
15-10=5
8.75/5=<u>1.75</u><u> </u><u>(7/4)</u>
x=video games
y=total cost
Since slope is change in y (cost) per change of x (video games), the answer is:
1.75 cost per video game
81.28
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