The sum of the actions of the angles in levels of a polygon through "n" sides is offered by: 180×(n - 2).

You are watching: Jake and erica were solving a system of equations

Now we have actually to discover the amount of the procedures the angles of a polygon through 10 sides.

i.e. N=10

Hence the worth of the expression 180×(n-2) when n=10 is given by:

180×(10-2)=180×8=1440.

Hence, the sum of measure of the angles of a polygon with 10 sides is: 1440°.

Ques 2)

The Expression 500v provides the number of points a player earns because that completing v voyages in video clip game.

We room asked to uncover the variety of points earned for completing 8 voyages.

i.e. V=8 the worth of 500v will be 500×8=4000.

Hence, 4000 points room earned for completing 8 voyages.

Ques 3)

we have actually to discover the value of the concern as given in the figure:

7x+y+16 for x=2 and also y=3.

Hence, we discover the worth of the expression:

7×2+3+16=33.

Hence, the worth of the expression is 33.

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