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3 years ago

What is the inequality to 2w+5>45

Mathematics

1 answer:

Tanzania [10]3 years ago

4 0

Answer:

w > 20

Step-by-step explanation:

Perhaps you want the solution to the inequality 2w+5>45.

Subtract 5:

2w > 40

Divide by 2:

w > 20 . . . . this is the solution

_____

Comment on solving inequalities

An inequality is solved in virtually the same way that an equation is solved: undo what is done to the variable. The only difference is that when you perform an operation that reverses the ordering, you need to reverse the ordering symbol.

Multiplying or dividing by a negative number will reverse the ordering. Consider, for example, ...

2 > 1

Multiplying both sides by -1, we get ...

-2 < -1 . . . . . the > sign needs to be reversed to a < sign to keep the inequality true

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Alekssandra [29.7K]

Answer:

c. 528000

Step-by-step explanation:

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* 2) New Clarendon Park is undergoing renovations to is gardens One garden that was a square is being adjusted so that one side

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Reading the solution, please, look on the picture)
Let the side of the square will be X meters. This means that S1=x^2 meters ^2
One side of new rectangular garden will be 2x meters and another (x-3) meters. So S2=2x(x-3) meters ^2
According to the data:
S1*1.25=S2
x^2*1.25=2x(x-3)
1.25*x^2=2x^2-6x
0.75x^2-6x=0
3x^2-24x=0
x^2-8x=0
x(x-8)=0
x=8 or x=0
But x>0!
So x = 8 meters

The next question is to find S2.
S2=2x(x-3)=2*8*5=80 meters ^ 2

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