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polet [3.4K]
3 years ago
9

Tank A contains 35 gallons of water and is increasing at a rate of 5 gallons per minute. Tank B contains 100 gallons of water an

d is decreasing at a rate of 8 gallons per minute. In how many minutes will the tanks contain the same amount of water?
Mathematics
1 answer:
Rus_ich [418]3 years ago
8 0
35+5t=amount in tank A after t minutes
100-8t=amount in tank B after t minutes

same amount

35+5t=100-8t
add 8t both sides
35+13t=100
minus 35 both sides
13t=65
divide by 13 both sides
t=5
5 minutes
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hodyreva [135]
Y = 3x - 1 ---- (1)
x - y = -9  ---- (2)

From Equation 2:
x - y = - 9
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7 0
2 years ago
Read 2 more answers
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Mademuasel [1]
9. D because it fits the description when it is graphed. 
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13. 0 isn't a zero for f(x), so B is correct (the zeros are 1/2 and 4). 
14. The width is about 3.831. 
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Every one of these except for 15 was solved using desmos, a graphing calculator. 

Hope this helps!
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