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LUCKY_DIMON [66]
3 years ago
5

A group of friends wants to go to the amusement park. They have $201.75 to spend on parking and admission. Parking is $5.75, and

tickets cost $24.50 per person, including tax. How many people can go to the amusement park?
Mathematics
1 answer:
Mice21 [21]3 years ago
7 0

Answer:

8 friends

Step-by-step explanation:

The group of friends will park only once, so you only need to add $5.75 once, but you still need to add the amount of money for all the people who are in the car, 24.50 x 8 is equal to exactly 196 dollars, so 196 + 5.75 is equal to exactly 201.75, which is the amount of money the group has, so 8 people can come.

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A tank contains 100 gal of brine made by dissolving 80 Ib of salt in water. Pure water runs into the tank at the rate of 4 gal/m
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Answer:

Step-by-step explanation:

Amount of brine = 100 gal

amount of salt = 80 lb

rate of water running = 4 gal / min

Let A be the amount of salt in lb in the tank at any time t.

(a) dA/dt = rate of salt in - rate of salt out

Rate of salt in = 0

rate of salt out = A x 4 / 100 = A / 25 lb/min

So, dA/dt = 0 - A/25 = - A/25 lb/min

\frac{dA}{A}=-\frac{1}{25}dt

\int \frac{dA}{A}=-\frac{1}{25}\int dt

A(t) = C e^{-0.04t}

When t = 0, A = 80 lb

So,

A(t) = 80 e^{-0.04t}

(b) Now, A = 40 lb

So,

40 = 80 e^{-0.04t}

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take log on both the sides

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t = 17.3 minutes

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What is the answer to this sum 5/6 of 120
ELEN [110]
100 is the correct answer
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In circle L with KNM= 53, find the angle measure of minor arc KM
Anestetic [448]

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Step-by-step explanation:

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lys-0071 [83]

Answer:

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Step-by-step explanation:

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Black_prince [1.1K]
!) $18,000 
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