8. John buys a TV for $1900. He later sells it for
$750. Calculate his percentage loss, correct to
one decimal place.

John bought the TV for . . . . $1,900

John sold the TV for . . . . . $750

John lost this much on the TV . . . (1,900 - 750) = $1,150

What fraction of the amount he paid did he lose ?

$1,150 / $1,900 = 0.6053 of the amount he paid never came back

What is this fraction as a percentage ?

0.6053 = 60.53 %

Rounded to one decimal place:  60.5 %  

John took a beating on that TV.  I hope he got a lot of good use out of it while he had it.

60.5% loss

Step-by-step explanation:

Loss = Cost Price – Selling Price =$1900-$750= $1150

% loss= Total loss/Cost price ×100

=1150/1900×100

=60.5%

-2/

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.