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yKpoI14uk [10]
3 years ago
9

The amount of water remaining in a fish tank is given by the equation y = 175 - 15x where y is the number of gallons of water re

maining
fter x minutes,
That is the approximate time it would take to drain the fish tank?
A. 12 minutes
B. 85 minutes
C 160 minutes
D. 175 minutes
E. 190 minutes
​
Mathematics
1 answer:
Ber [7]3 years ago
4 0

Answer:

<u>The correct answer is A. 12 minutes.</u>

Step-by-step explanation:

Let's solve for y, when x = 12, as follows:

y = 175 - 15x

y = 175 - 15 * 12

y = 175 - 180

y = - 5

This result means that after 12 minutes the fish tank would be completely drained and if it's needed 5 additional gallons of water could also be drained. It's not necessary to continue making more calculation with the the other options given because this is the right answer.

<u>The correct answer is A. 12 minutes.</u>

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