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gogolik [260]
3 years ago
12

-3x+2=-7 What does x equal? And how do you solve it?

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
8 0

Answer:

x = 3

Step-by-step explanation:

Given

- 3x + 2 = - 7 ( subtract 2 from both sides )

- 3x = - 9 ( divide both sides by - 3 )

x = 3

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Can anybody explain how to do this? The answer I keep getting isn't one of the options.
Nastasia [14]
I think is D


5^-2*25^-1
5^-2*5^-2
5^-4
1/5^4
1/625
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3 0
3 years ago
Antonio orders an iPhone case off of Amazon for $27. He has to pay an additional 3% for shipping and handling. How much will his
Wewaii [24]

Answer:

We conclude that total cost/bill will be: $27.81  

Step-by-step explanation:

Given

The cost of an iPhone case = $27

Additional expense = 3% = 3/100 = 0.03

To determine

Total bill = ?

The expense amount can be calculated by multiplying the cost of an iPhone case by the additional expense

i.e.

Expense Amount = cost of an iPhone case × additional expense

                             = 27 × 0.03

                             = $0.81

The total cost is calculated by adding the expense amount and the original cost of an iPhone case.

i.e.

Total cost/bill = Expense Amount + cost of an iPhone case

                  = $0.81 + $27

                  = $27.81

Therefore, we conclude that total cost/bill will be: $27.81            

6 0
3 years ago
What is the solution to the system of equations. 2x-y=7 y=2x+3
OLEGan [10]
To solve this, you can substitute the second equation into the first.

It becomes 2x-(2x+3)=7

Solve from here!

You get -3=7. Not possible. Therefore there is no solution to this system.

System is inconsistent. Hope this helps.
8 0
3 years ago
The perimeter of a rectangle is 24 cm. find the lengths of the sides of the rectangle giving the maximum area. enter the answers
Simora [160]
24=2*12
P=2*(l+L)
⇒ L+l=12
    ⇒ for a maximum area l=5, L=7
Area=5*7=35 

8 0
3 years ago
Please help me please I really need help please
vichka [17]

Answer:

See attached

Step-by-step explanation:

Solution is in the attached picture

4 0
3 years ago
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