Pani Zosia ma w portfelu 180 zł w banknotach o nominałach 10 zł i 50 zł. Liczba banknotów każdego rodzaju jest taka sama. Oblicz, ile banknotów jest w portfelu pani Zosi. Ułóż odpowiednie równanie i je rozwiąż.

An alien has just landed from the planet, iksnimak. he would like to leam how to add two fractions when thedenominators are the same. write a paragraph that explains to our alien friend, in your own words, the detailsabout how to add the fractions, how to change the result to a mixed number, and how to reduce the fractionpart. use this problem as your example: the two fractions are 5/8 & 7/8

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?