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abruzzese [7]
3 years ago
9

Toner cartridges for the laser printer in your office cost $90 each, including tax. You receive an $8 refund for each empty cart

ridge sent back for recycling. Your office uses and recycles 14 cartridges per year. What is your annual toner expense after refunds?
Mathematics
1 answer:
dimulka [17.4K]3 years ago
5 0
Step One
Figure out the cost for 1 cartridge
Cost =       90
<u>Refund =     8 Subtract</u>
Net cost = 82

Step Two
Find the cost for 14
14 * 82 = 1148    <<<<<< Cost for 14
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Step-by-step explanation:

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2 years ago
Convert 9432 feet to miles
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Answer:

<h2><u><em>1.786364  miles</em></u></h2>

Step-by-step explanation:

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9432 *  0,000189394 =

<u><em>1.786364</em></u>

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Answer:

a) CI = ( 5,1 ; 5,7 )

b) SE =  0,1  

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Standard deviation   s = 1,3

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z(c) for  0,005 is from z-table    z(c)  = 2,575

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Answer:

5.6 miles

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Firstly, we need to find the unit rate (the number of miles in 1 minutes).

To get this, we need to divide total miles ran (7 miles) by the total minutes taken (80 minutes). Thus, we will have MILES PER MINUTE.

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Now,

We want number of miles in 64 minutes. Since we know "PER MINUTE", we simply multiply that with 64 to get number of miles in that amount of time.

THus,

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So, in 64 minutes, Maria can run 5.6 miles

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