What is the inequality to 2w+5>45

Mathematics

1 answer:

Tanzania [10]2 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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Y= (x-9) (x+3)

juin [17]

Answer:

y = x² − 6x − 27

Step-by-step explanation:

To distribute, you can use something called FOIL. It stands for First, Outer, Inner, Last.

First, multiply the First term in each factor.

x · x = x²

Now multiply the Outer terms in each factor.

x · 3 = 3x

Next multiply the Inner terms in each factor.

-9 · x = -9x

Finally, multiply the Last terms in each factor.

-9 · 3 = -27

Add them all up:

x² + 3x − 9x − 27

x² − 6x − 27

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xxTIMURxx [149]

$m-meters\\cm-centimeters\\\\1m=100cm\\------------\\therefore\\\\1.7m=(1.7\cdot100cm)=\boxed{\boxed{170cm}}$