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3 years ago

7. ALGEBRA Debbi Cypress received her bank statement and immediately checked it to make sure her pay

Mathematics

1 answer:

Savatey [412]3 years ago

7 0

Answer:

Option b.

Step-by-step explanation:

The balance in Debbi's account in the start of the month was = His previous month's balance + Prevoius month's pay = $320.45 + $4300.5 = $4620.95

Now, total expenditure of this month = Pay check + ATM withdrawal + Service charge = $3290.78 + $300 + $5.25 = $3596.03.

So, the balance of this month will be $(4620.95 - 3596.03) =$1024.92

But Debbi's new balance is $1873.20.

Therefore, the increase in pay is $(1873.20 - 1024.92) = $848.28 was the direct deposit. (Answer)

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2 years ago

An automobile firm wants to purchase either machine A or machine B. The intial cost of machines A and B are $40,000 and $50,000,

Fynjy0 [20]

Answer:

C. $118,000 and $110,000, respectively.

Step-by-step explanation:

Please consider the complete question.

An automobile firm wants to purchase either machine A or machine B. The intial cost of machines A and B are $40,000 and $50,000, respectively. The power consumption per year of machines A and B are 120 MWh and 100 MWh, respectively. The power cost is $40/MWh. The estimated operating and maintenance cost over 10 years is $30,000 for machine A and $20,000 for machine B.

First of all, we will find the amount spent on power consumption for 10 years by each machine as:

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$\text{Machine B}=10\cdot \$100(\$40)\\\text{Machine A}=\$40,000$

Now, we will find overall cost of machines A and B by adding initial cost, power consumption for 10 years and maintenance cost as:

$\text{Overall cost of machine A}=\$40,000+\$48,000+\$30,000$

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3 years ago

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Nadusha1986 [10]

Answer:

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