Melissa needs 3.87 feet of string to use as a border for her poster. melissa finds a piece of string that is 4.25 feet long.

how much string will mellisa have left over?

The length of string Mellisa will have left over is 0.38 feet

From the question,

We are to determine how much string Mellisa would have left over.

From the given information

Melissa needs 3.87 feet of string to use as a border for her poster.

Then,

She finds a piece of string that is 4.25 feet long.

That means,

From the piece of string that she found, she will use 3.87 feet out of the 4.25 feet.

∴ The length of string Mellisa will have left is = 4.25 feet - 3.87 feet

The length of string Mellisa will have left is = 0.38 feet

Hence, the length of string Mellisa will have left over is 0.38 feet

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Answer

Find out the how much string will Mellisa have left over .

To prove

Let us assume that the  string will Mellisa have left over be x .

As given

Melissa needs 3.87 feet of string to use as a border for her poster.

Melissa finds a piece of string that is 4.25 feet long.

Than the equation is write in the form

x = 4.25 - 3.87

x = 0.38 feet

Therefore the  string will Mellisa have left over be  0.38 feet .

Hence proved

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

answer: i think it is (1,-2)