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Inessa05 [86]
4 years ago
8

7. A fish tank hold 100 gallons of water and is losing water at a rate of 1 gallons per hour. A second fish tank

Mathematics
1 answer:
djverab [1.8K]4 years ago
4 0

Answer:

B

Step-by-step explanation:

the first fish tank has 100 gallons of water and 1 gallon is removed every hour which makes 100-h

the second tank has 40 gallons in it and 2 gallons are added every hour which makes 40+2h

after 20 hours the second tank will have more gallons than the first tank

this means that 40+2h would be greater than 100-h since it's also asking you "After how many hours will the first tank  have less water than the second?"

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What is the value of d in the inequality 14 - 3 d < 80 - 22 +7 d?
baherus [9]

Answer:

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Step-by-step explanation:

8 0
3 years ago
The weight of oranges growing in an orchard is normally distributed with a mean weight of 7 oz. and a standard deviation of 1.5
Katena32 [7]

Answer:

2 to 11 ounces would be the interval.

Step-by-step explanation:

Add 3 standard deviations above and below the mean to get the range in which 99.7% of the data in a normal distribution will fall

6.5 + 4.5 = 11

6.5 - 4.5 = 2.

Hope this helped!

3 0
3 years ago
Determine the ordered pair that satisfies the equation, 5x + 2y = 7.
AveGali [126]

Answer:

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Step-by-step explanation:

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3 years ago
ben says that an array with 2 ross and 5 columns has 8 items. is this reasonable? Explain why or why not?
IgorLugansk [536]
This is not reasonable because
2 \times 5 = 10 \\
5 0
3 years ago
A spinner is divided into 6 equal sectorslabeled 1-6. Grace spun the spinner threetimes. What is the probability that the sum of
S_A_V [24]

Solution

Sample\text{ }Space=6^3=216

To find the probability of less than 13 or greater than 15

\begin{gathered} Possible\text{ outcome for 13}=(6,6,1),(6,5,2),(6,4,3),(5,5,3),(5,4,4) \\ Total\text{ Number of Outcomes}=3+3!+3!+3+3=21 \\  \\ Possible\text{ Outcome for 14}=(6,6,2),(6,5,3),(6,4,4),(5,5,4) \\ Total\text{ number of possible outcomes}=3+3!+3+3=15 \\  \\ Possible\text{ Outcome for 15}=(6,6,3),(6,5,4),(5,5,5) \\ Total\text{ number of possible outcomes}=3+3!+1=10 \\  \\ Overall\text{ Total}=21+15+10=46 \end{gathered}

Therefore, the probability that the sum of her spins is less than 13 or greater than 15 is

\begin{gathered} p=1-\frac{46}{216} \\  \\ p=\frac{170}{216} \\  \\ p=\frac{85}{108} \end{gathered}

7 0
1 year ago
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