Dla członkiń zespołu tanecznego planowano kupić jednakowe spódnice po 60 zł każda.
Gdy sprzedawca obniżył cenę tych spódnic o 20%, wówczas za tę samą kwotę można było kupić o 5 spódnic więcej. Ile można było kupić spódnic po obniżonej cenie?

25

Step-by-step explanation:

Let's say x is the number of skirts, and C is the cost.  At 60 zł per skirt, the cost is:

C = 60x

When the price is reduced by 20%, the price of each skirt becomes 0.80 (60 zł) = 48 zł.  At this new price, the team can buy x+5 skirts at the same cost.

C = 48(x + 5)

Setting the expressions equal and solving for x:

60x = 48(x + 5)

60x = 48x + 240

12x = 240

x = 20

The team could buy 20 skirts at the original price, which means they can buy 25 skirts at the reduced price.

image result for what is another name for consecutive interior angles? ​

when two lines are crossed by another line (called the transversal): the pairs of angles on one side of the transversal but inside the two lines are called consecutive interior angles. in this example, these are consecutive interior angles: d and f.

step-by-step explanation: