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wlad13 [49]
3 years ago
12

Sam has $2,450 in his bank account. He spends $20 each week on gas money. After how many weeks will sams account balance fall be

low $1000 in inequality form?
Mathematics
1 answer:
Taya2010 [7]3 years ago
5 0

Answer:

  • 2450 -20w < 1000
  • 73 weeks

Step-by-step explanation:

The balance (b) in Sam's account will be the initial balance less 20 times the number of weeks (w) that he withdraws gas money.

  b = 2450 -20w

We want the inequality to express the condition that this balance is below 1000:

  b < 1000

  2450 -20w < 1000 . . . . . substitute for b

__

The solution to this can be found by subtracting 2450, then dividing by -20.

  -20w < -1450

  w > 72.5

If weeks are counted in whole numbers, Sam's balance will be below $1000 after 73 weeks.

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The side of the base of a square prism is decreasing at a rate of 7 kilometers per minute and the height of the prism is increas
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Answer:

dV = - 5.73*10⁹ m³/s

Step-by-step explanation:

Question: What is the rate of change of the volume of the prism at that instant (in cubic meters per second) ?

A function can be dependent on one or more variables. The change in the function due to a change in one o its variables is given by the functions derivative with respect to that variable. For functions that are composed of products of its variables, we may use the product rule to determine its derivative.

The volume of a square prism with base a and height h is given by

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dV = 2ah(da/dt) +  a²(dh/dt)

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we have

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8 0
3 years ago
Suppose the number of hits a webpage receives follows a Poisson distribution. The average number of hits per minute is 2.4. What
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Answer:

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