1) Students who purchase tickets to the football game in advance receive 10% off the regular admission price. Roberto paid a discounted price of $6.30. He wants to know the regular
price of his ticket
» What is the relationship between the sale price
and the regular price of a ticket to the game?
Regular Price
100
%
The sale price is ?
% of the regular price.
$
?
Sale Price
Discount
%
10
%
$ 6.30
$

9514 1404 393

  The sale price is 90% of the original price.

Step-by-step explanation:

The original price is 100% of the original price. If 10% of the original price is subtracted, the new price is 100% - 10% = 90% of the original price.

The sale price is 90% of the original price.

__

s = 0.90×p

p = s/0.90 = 6.30/0.90 = 7.00

The original price of a ticket was $7.00.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

42

step-by-step explanation: