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allsm [11]
3 years ago
6

How to do two step inequalities

Mathematics
1 answer:
Rudik [331]3 years ago
3 0
If I were you, I would search it up on VirtualNerd but you first undo using the opposite of PEDMAS and if you divide or multiply with a negative integer, the direction of the inequality thing in the middle of the equation switches directions.

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Slope of points (2,2) and (-2,-2)
nika2105 [10]

SLope = (2 + 2)/(2 + 2) = 4/4 = 1

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8 0
3 years ago
Raj builds a side table in the shape of a cube. Each edge of the cube measures 21 inches. Raj wants to cover the top and four si
elena-s [515]

Answer: 2000/25 = 80 tiles

Step-by-step explanation:

Date: s=20

equation of surface area of a cube prism: surface area = 6s*2

the surface area to be covered with tiles is requires, the base is not included, so the equation reduces: surface area = 5s*2

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5 0
3 years ago
A new furnace for your small factory will cost $29,000 and a year to install, will require ongoing maintenance expenditures of $
Neporo4naja [7]

Answer:

Net present value is $61,058.

Step-by-step explanation:

Net present value is the difference between present value of cash inflows and the present value cash outflows over the period of time. NPV method is used in capital budgeting to analyze profitability of the project.

Less: initial cost is $29,000

Add: Year 1: Cost saving due to new furnace is $5,600 (2,800 oil gallons * $ 2 per gallon)

Year 2: Cost saving due to new furnace is $7,000 (2,800 oil gallons * $ 2.50 per gallon)

Year 3- 20: Cost saving due to new furnace is $8,400 (2,800 oil gallons * $ 3 per gallon)

Less : Maintenance expenditure is $1,200

The furnace will benefit for 20 years and the price per gallon will increase by $0.50 year.

The annuity factor is applied at discount factor of 6% and then present value of each cash inflow and outflow is calculated. The net present value is $61,058.

8 0
3 years ago
Mary has $10 in savings. She owes her parents $50. She does some chores and her parents pay her $12. She also gets $25 for her b
Viefleur [7K]

Answer:

She does not have enough money to pay back her parents. She needs $3 to be able to do so.

Step-by-step explanation:

If she owes her parents $50 and she has $10 in savings, the her debt to them is only 40$ as 50-10 = 40. When she does chores she eliminates $12 from her debt and now owes them $28 as 40-12 = 28. When she gets $25 for her birthday she sues that to pay them back and 28-25 = $3. Therefore, she still owes them $3.

5 0
3 years ago
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