Answer:
8x+5005073
Step-by-step explanation:
3 gallons of acid = 100% concentration acid
? (water+acid) gallons = 15 concentration acid
Note: Every gallon of water added reduces the percentage concentration of acid. Therefore, the relationship is inverse proportionality.
Solution:
Total number of gallons (water+acid) = (3*100)/15 = 20 gallons
Therefore, gallons of water = 20-3 = 17 gallons
Answer:
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Answer:
The slope is
Step-by-step explanation:
∵ The rule of the slope passing through 2 points is:
m =
∵ The points are (7 , 8) and (-7 , 1)
∴ m =
Answer:
-25
Step-by-step explanation:
Withdrawal means to take out. So you're taking out $25 out of your account, therefore it would be a negative.